N: Kees Cook
E: kees@outflux.net
-W: http://outflux.net/
-P: 1024D/17063E6D 9FA3 C49C 23C9 D1BC 2E30 1975 1FFF 4BA9 1706 3E6D
-D: Minor updates to SCSI types, added /proc/pid/maps protection
+E: kees@ubuntu.com
+E: keescook@chromium.org
+W: http://outflux.net/blog/
+P: 4096R/DC6DC026 A5C3 F68F 229D D60F 723E 6E13 8972 F4DF DC6D C026
+D: Various security things, bug fixes, and documentation.
S: (ask for current address)
+S: Portland, Oregon
S: USA
N: Robin Cornelius
$ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
-rollback_snap
-
- Rolls back data to the specified snapshot. This goes over the entire
- list of rados blocks and sends a rollback command to each.
-
- $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_rollback
-
snap_*
A directory per each snapshot
on: enable for both 32- and 64-bit processes
off: disable for both 32- and 64-bit processes
- amd_iommu= [HW,X86-84]
+ amd_iommu= [HW,X86-64]
Pass parameters to the AMD IOMMU driver in the system.
Possible values are:
fullflush - enable flushing of IO/TLB entries when
The machine DAI configuration glues all the codec and CPU DAIs together. It can
also be used to set up the DAI system clock and for any machine related DAI
initialisation e.g. the machine audio map can be connected to the codec audio
-map, unconnected codec pins can be set as such. Please see corgi.c, spitz.c
-for examples.
+map, unconnected codec pins can be set as such.
struct snd_soc_dai_link is used to set up each DAI in your machine. e.g.
The machine driver can optionally extend the codec power map and to become an
audio power map of the audio subsystem. This allows for automatic power up/down
of speaker/HP amplifiers, etc. Codec pins can be connected to the machines jack
-sockets in the machine init function. See soc/pxa/spitz.c and dapm.txt for
-details.
+sockets in the machine init function.
Machine Controls
L: iommu@lists.linux-foundation.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git
S: Supported
-F: arch/x86/kernel/amd_iommu*.c
-F: arch/x86/include/asm/amd_iommu*.h
+F: drivers/iommu/amd_iommu*.[ch]
+F: include/linux/amd-iommu.h
AMD MICROCODE UPDATE SUPPORT
M: Andreas Herrmann <andreas.herrmann3@amd.com>
M: Ben Dooks <ben-linux@fluff.org>
M: Kukjin Kim <kgene.kim@samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
W: http://www.fluff.org/ben/linux/
S: Maintained
F: arch/arm/plat-samsung/
F: arch/arm/plat-s3c24xx/
F: arch/arm/plat-s5p/
+F: arch/arm/mach-s3c24*/
+F: arch/arm/mach-s3c64xx/
F: drivers/*/*s3c2410*
F: drivers/*/*/*s3c2410*
-
-ARM/S3C2410 ARM ARCHITECTURE
-M: Ben Dooks <ben-linux@fluff.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W: http://www.fluff.org/ben/linux/
-S: Maintained
-F: arch/arm/mach-s3c2410/
-
-ARM/S3C244x ARM ARCHITECTURE
-M: Ben Dooks <ben-linux@fluff.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W: http://www.fluff.org/ben/linux/
-S: Maintained
-F: arch/arm/mach-s3c2440/
-F: arch/arm/mach-s3c2443/
-
-ARM/S3C64xx ARM ARCHITECTURE
-M: Ben Dooks <ben-linux@fluff.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W: http://www.fluff.org/ben/linux/
-S: Maintained
-F: arch/arm/mach-s3c64xx/
+F: drivers/spi/spi-s3c*
+F: sound/soc/samsung/*
ARM/S5P EXYNOS ARM ARCHITECTURES
M: Kukjin Kim <kgene.kim@samsung.com>
F: mm/
MEMORY RESOURCE CONTROLLER
+M: Johannes Weiner <hannes@cmpxchg.org>
+M: Michal Hocko <mhocko@suse.cz>
M: Balbir Singh <bsingharora@gmail.com>
-M: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
M: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
L: cgroups@vger.kernel.org
L: linux-mm@kvack.org
VERSION = 3
PATCHLEVEL = 2
SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc5
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*
be avoided when possible.
config PHYS_OFFSET
- hex "Physical address of main memory"
+ hex "Physical address of main memory" if MMU
depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
+ default DRAM_BASE if !MMU
help
Please provide the physical address corresponding to the
location of main memory in your system.
CONFIG_MACH_NOKIA770=y
CONFIG_MACH_AMS_DELTA=y
CONFIG_MACH_OMAP_GENERIC=y
-CONFIG_OMAP_ARM_216MHZ=y
-CONFIG_OMAP_ARM_195MHZ=y
-CONFIG_OMAP_ARM_192MHZ=y
CONFIG_OMAP_ARM_182MHZ=y
-CONFIG_OMAP_ARM_168MHZ=y
-# CONFIG_OMAP_ARM_60MHZ is not set
# CONFIG_ARM_THUMB is not set
CONFIG_PCCARD=y
CONFIG_OMAP_CF=y
};
struct unwind_idx {
- unsigned long addr;
+ unsigned long addr_offset;
unsigned long insn;
};
struct unwind_table {
struct list_head list;
- struct unwind_idx *start;
- struct unwind_idx *stop;
+ const struct unwind_idx *start;
+ const struct unwind_idx *origin;
+ const struct unwind_idx *stop;
unsigned long begin_addr;
unsigned long end_addr;
};
extern void unwind_table_del(struct unwind_table *tab);
extern void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk);
-#ifdef CONFIG_ARM_UNWIND
-extern int __init unwind_init(void);
-#else
-static inline int __init unwind_init(void)
-{
- return 0;
-}
-#endif
-
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_ARM_UNWIND
static int __devinit armpmu_device_probe(struct platform_device *pdev)
{
+ if (!cpu_pmu)
+ return -ENODEV;
+
cpu_pmu->plat_device = pdev;
return 0;
}
{
struct machine_desc *mdesc;
- unwind_init();
-
setup_processor();
mdesc = setup_machine_fdt(__atags_pointer);
if (!mdesc)
machine_desc = mdesc;
machine_name = mdesc->name;
+#ifdef CONFIG_ZONE_DMA
+ if (mdesc->dma_zone_size) {
+ extern unsigned long arm_dma_zone_size;
+ arm_dma_zone_size = mdesc->dma_zone_size;
+ }
+#endif
if (mdesc->soft_reboot)
reboot_setup("s");
tcm_init();
-#ifdef CONFIG_ZONE_DMA
- if (mdesc->dma_zone_size) {
- extern unsigned long arm_dma_zone_size;
- arm_dma_zone_size = mdesc->dma_zone_size;
- }
-#endif
#ifdef CONFIG_MULTI_IRQ_HANDLER
handle_arch_irq = mdesc->handle_irq;
#endif
struct unwind_ctrl_block {
unsigned long vrs[16]; /* virtual register set */
- unsigned long *insn; /* pointer to the current instructions word */
+ const unsigned long *insn; /* pointer to the current instructions word */
int entries; /* number of entries left to interpret */
int byte; /* current byte number in the instructions word */
};
PC = 15
};
-extern struct unwind_idx __start_unwind_idx[];
-extern struct unwind_idx __stop_unwind_idx[];
+extern const struct unwind_idx __start_unwind_idx[];
+static const struct unwind_idx *__origin_unwind_idx;
+extern const struct unwind_idx __stop_unwind_idx[];
static DEFINE_SPINLOCK(unwind_lock);
static LIST_HEAD(unwind_tables);
})
/*
- * Binary search in the unwind index. The entries entries are
+ * Binary search in the unwind index. The entries are
* guaranteed to be sorted in ascending order by the linker.
+ *
+ * start = first entry
+ * origin = first entry with positive offset (or stop if there is no such entry)
+ * stop - 1 = last entry
*/
-static struct unwind_idx *search_index(unsigned long addr,
- struct unwind_idx *first,
- struct unwind_idx *last)
+static const struct unwind_idx *search_index(unsigned long addr,
+ const struct unwind_idx *start,
+ const struct unwind_idx *origin,
+ const struct unwind_idx *stop)
{
- pr_debug("%s(%08lx, %p, %p)\n", __func__, addr, first, last);
+ unsigned long addr_prel31;
+
+ pr_debug("%s(%08lx, %p, %p, %p)\n",
+ __func__, addr, start, origin, stop);
+
+ /*
+ * only search in the section with the matching sign. This way the
+ * prel31 numbers can be compared as unsigned longs.
+ */
+ if (addr < (unsigned long)start)
+ /* negative offsets: [start; origin) */
+ stop = origin;
+ else
+ /* positive offsets: [origin; stop) */
+ start = origin;
+
+ /* prel31 for address relavive to start */
+ addr_prel31 = (addr - (unsigned long)start) & 0x7fffffff;
- if (addr < first->addr) {
+ while (start < stop - 1) {
+ const struct unwind_idx *mid = start + ((stop - start) >> 1);
+
+ /*
+ * As addr_prel31 is relative to start an offset is needed to
+ * make it relative to mid.
+ */
+ if (addr_prel31 - ((unsigned long)mid - (unsigned long)start) <
+ mid->addr_offset)
+ stop = mid;
+ else {
+ /* keep addr_prel31 relative to start */
+ addr_prel31 -= ((unsigned long)mid -
+ (unsigned long)start);
+ start = mid;
+ }
+ }
+
+ if (likely(start->addr_offset <= addr_prel31))
+ return start;
+ else {
pr_warning("unwind: Unknown symbol address %08lx\n", addr);
return NULL;
- } else if (addr >= last->addr)
- return last;
+ }
+}
- while (first < last - 1) {
- struct unwind_idx *mid = first + ((last - first + 1) >> 1);
+static const struct unwind_idx *unwind_find_origin(
+ const struct unwind_idx *start, const struct unwind_idx *stop)
+{
+ pr_debug("%s(%p, %p)\n", __func__, start, stop);
+ while (start < stop) {
+ const struct unwind_idx *mid = start + ((stop - start) >> 1);
- if (addr < mid->addr)
- last = mid;
+ if (mid->addr_offset >= 0x40000000)
+ /* negative offset */
+ start = mid + 1;
else
- first = mid;
+ /* positive offset */
+ stop = mid;
}
-
- return first;
+ pr_debug("%s -> %p\n", __func__, stop);
+ return stop;
}
-static struct unwind_idx *unwind_find_idx(unsigned long addr)
+static const struct unwind_idx *unwind_find_idx(unsigned long addr)
{
- struct unwind_idx *idx = NULL;
+ const struct unwind_idx *idx = NULL;
unsigned long flags;
pr_debug("%s(%08lx)\n", __func__, addr);
- if (core_kernel_text(addr))
+ if (core_kernel_text(addr)) {
+ if (unlikely(!__origin_unwind_idx))
+ __origin_unwind_idx =
+ unwind_find_origin(__start_unwind_idx,
+ __stop_unwind_idx);
+
/* main unwind table */
idx = search_index(addr, __start_unwind_idx,
- __stop_unwind_idx - 1);
- else {
+ __origin_unwind_idx,
+ __stop_unwind_idx);
+ } else {
/* module unwind tables */
struct unwind_table *table;
if (addr >= table->begin_addr &&
addr < table->end_addr) {
idx = search_index(addr, table->start,
- table->stop - 1);
+ table->origin,
+ table->stop);
/* Move-to-front to exploit common traces */
list_move(&table->list, &unwind_tables);
break;
int unwind_frame(struct stackframe *frame)
{
unsigned long high, low;
- struct unwind_idx *idx;
+ const struct unwind_idx *idx;
struct unwind_ctrl_block ctrl;
/* only go to a higher address on the stack */
unsigned long text_size)
{
unsigned long flags;
- struct unwind_idx *idx;
struct unwind_table *tab = kmalloc(sizeof(*tab), GFP_KERNEL);
pr_debug("%s(%08lx, %08lx, %08lx, %08lx)\n", __func__, start, size,
if (!tab)
return tab;
- tab->start = (struct unwind_idx *)start;
- tab->stop = (struct unwind_idx *)(start + size);
+ tab->start = (const struct unwind_idx *)start;
+ tab->stop = (const struct unwind_idx *)(start + size);
+ tab->origin = unwind_find_origin(tab->start, tab->stop);
tab->begin_addr = text_addr;
tab->end_addr = text_addr + text_size;
- /* Convert the symbol addresses to absolute values */
- for (idx = tab->start; idx < tab->stop; idx++)
- idx->addr = prel31_to_addr(&idx->addr);
-
spin_lock_irqsave(&unwind_lock, flags);
list_add_tail(&tab->list, &unwind_tables);
spin_unlock_irqrestore(&unwind_lock, flags);
kfree(tab);
}
-
-int __init unwind_init(void)
-{
- struct unwind_idx *idx;
-
- /* Convert the symbol addresses to absolute values */
- for (idx = __start_unwind_idx; idx < __stop_unwind_idx; idx++)
- idx->addr = prel31_to_addr(&idx->addr);
-
- pr_debug("unwind: ARM stack unwinding initialised\n");
-
- return 0;
-}
* USB Device (Gadget)
* -------------------------------------------------------------------- */
-#ifdef CONFIG_USB_GADGET_AT91
+#ifdef CONFIG_USB_AT91
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
- CLKDEV_CON_DEV_ID("t3_clk", "atmel_tcb.1", &tc3_clk),
- CLKDEV_CON_DEV_ID("t4_clk", "atmel_tcb.1", &tc4_clk),
- CLKDEV_CON_DEV_ID("t5_clk", "atmel_tcb.1", &tc5_clk),
+ CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),
+ CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
+ CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk),
/* more usart lookup table for DT entries */
CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),
* USB Device (Gadget)
* -------------------------------------------------------------------- */
-#ifdef CONFIG_USB_GADGET_AT91
+#ifdef CONFIG_USB_AT91
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
* USB Device (Gadget)
* -------------------------------------------------------------------- */
-#ifdef CONFIG_USB_GADGET_AT91
+#ifdef CONFIG_USB_AT91
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
* USB Device (Gadget)
* -------------------------------------------------------------------- */
-#ifdef CONFIG_USB_GADGET_AT91
+#ifdef CONFIG_USB_AT91
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
#define BOARD_HAVE_NAND_16BIT (1 << 31)
static inline int board_have_nand_16bit(void)
{
- return system_rev & BOARD_HAVE_NAND_16BIT;
+ return (system_rev & BOARD_HAVE_NAND_16BIT) ? 1 : 0;
}
#endif /* __ARCH_SYSTEM_REV_H__ */
.num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
.tdm_slots = 2,
.serial_dir = da850_iis_serializer_direction,
- .asp_chan_q = EVENTQ_1,
+ .asp_chan_q = EVENTQ_0,
.version = MCASP_VERSION_2,
.txnumevt = 1,
.rxnumevt = 1,
/* UBL (a few copies) plus U-Boot */
.name = "bootloader",
.offset = 0,
- .size = 28 * NAND_BLOCK_SIZE,
+ .size = 30 * NAND_BLOCK_SIZE,
.mask_flags = MTD_WRITEABLE, /* force read-only */
}, {
/* U-Boot environment */
int val;
u32 value;
- if (!vpif_vsclkdis_reg || !cpld_client)
+ if (!vpif_vidclkctl_reg || !cpld_client)
return -ENXIO;
val = i2c_smbus_read_byte(cpld_client);
return val;
spin_lock_irqsave(&vpif_reg_lock, flags);
- value = __raw_readl(vpif_vsclkdis_reg);
+ value = __raw_readl(vpif_vidclkctl_reg);
if (mux_mode) {
val &= VPIF_INPUT_TWO_CHANNEL;
value |= VIDCH1CLK;
val |= VPIF_INPUT_ONE_CHANNEL;
value &= ~VIDCH1CLK;
}
- __raw_writel(value, vpif_vsclkdis_reg);
+ __raw_writel(value, vpif_vidclkctl_reg);
spin_unlock_irqrestore(&vpif_reg_lock, flags);
err = i2c_smbus_write_byte(cpld_client, val);
.name = "dsp",
.parent = &pll1_sysclk1,
.lpsc = DM646X_LPSC_C64X_CPU,
- .flags = PSC_DSP,
.usecount = 1, /* REVISIT how to disable? */
};
#define PTCMD 0x120
#define PTSTAT 0x128
#define PDSTAT 0x200
-#define PDCTL1 0x304
+#define PDCTL 0x300
#define MDSTAT 0x800
#define MDCTL 0xA00
#define PSC_STATE_ENABLE 3
#define MDSTAT_STATE_MASK 0x3f
+#define PDSTAT_STATE_MASK 0x1f
#define MDCTL_FORCE BIT(31)
+#define PDCTL_NEXT BIT(1)
+#define PDCTL_EPCGOOD BIT(8)
#ifndef __ASSEMBLER__
void davinci_psc_config(unsigned int domain, unsigned int ctlr,
unsigned int id, bool enable, u32 flags)
{
- u32 epcpr, ptcmd, ptstat, pdstat, pdctl1, mdstat, mdctl;
+ u32 epcpr, ptcmd, ptstat, pdstat, pdctl, mdstat, mdctl;
void __iomem *psc_base;
struct davinci_soc_info *soc_info = &davinci_soc_info;
u32 next_state = PSC_STATE_ENABLE;
mdctl |= MDCTL_FORCE;
__raw_writel(mdctl, psc_base + MDCTL + 4 * id);
- pdstat = __raw_readl(psc_base + PDSTAT);
- if ((pdstat & 0x00000001) == 0) {
- pdctl1 = __raw_readl(psc_base + PDCTL1);
- pdctl1 |= 0x1;
- __raw_writel(pdctl1, psc_base + PDCTL1);
+ pdstat = __raw_readl(psc_base + PDSTAT + 4 * domain);
+ if ((pdstat & PDSTAT_STATE_MASK) == 0) {
+ pdctl = __raw_readl(psc_base + PDCTL + 4 * domain);
+ pdctl |= PDCTL_NEXT;
+ __raw_writel(pdctl, psc_base + PDCTL + 4 * domain);
ptcmd = 1 << domain;
__raw_writel(ptcmd, psc_base + PTCMD);
epcpr = __raw_readl(psc_base + EPCPR);
} while ((((epcpr >> domain) & 1) == 0));
- pdctl1 = __raw_readl(psc_base + PDCTL1);
- pdctl1 |= 0x100;
- __raw_writel(pdctl1, psc_base + PDCTL1);
+ pdctl = __raw_readl(psc_base + PDCTL + 4 * domain);
+ pdctl |= PDCTL_EPCGOOD;
+ __raw_writel(pdctl, psc_base + PDCTL + 4 * domain);
} else {
ptcmd = 1 << domain;
__raw_writel(ptcmd, psc_base + PTCMD);
char name[10];
};
-static DEFINE_PER_CPU(struct mct_clock_event_device, percpu_mct_tick);
-
static void exynos4_mct_write(unsigned int value, void *addr)
{
void __iomem *stat_addr;
}
#ifdef CONFIG_LOCAL_TIMERS
+
+static DEFINE_PER_CPU(struct mct_clock_event_device, percpu_mct_tick);
+
/* Clock event handling */
static void exynos4_mct_tick_stop(struct mct_clock_event_device *mevt)
{
void local_timer_stop(struct clock_event_device *evt)
{
+ unsigned int cpu = smp_processor_id();
evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
if (mct_int_type == MCT_INT_SPI)
- disable_irq(evt->irq);
+ if (cpu == 0)
+ remove_irq(evt->irq, &mct_tick0_event_irq);
+ else
+ remove_irq(evt->irq, &mct_tick1_event_irq);
else
disable_percpu_irq(IRQ_MCT_LOCALTIMER);
}
clk_rate = clk_get_rate(mct_clk);
+#ifdef CONFIG_LOCAL_TIMERS
if (mct_int_type == MCT_INT_PPI) {
int err;
WARN(err, "MCT: can't request IRQ %d (%d)\n",
IRQ_MCT_LOCALTIMER, err);
}
+#endif /* CONFIG_LOCAL_TIMERS */
}
static void __init exynos4_timer_init(void)
imx6q_clock_map_io();
}
-static void __init imx6q_gpio_add_irq_domain(struct device_node *np,
+static int __init imx6q_gpio_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
- static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS -
- 32 * 7; /* imx6q gets 7 gpio ports */
+ static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+ gpio_irq_base -= 32;
irq_domain_add_simple(np, gpio_irq_base);
- gpio_irq_base += 32;
+
+ return 0;
}
static const struct of_device_id imx6q_irq_match[] __initconst = {
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/bootmem.h>
+#include <linux/module.h>
#include <mach/irqs.h>
#include <mach/iommu.h>
{
iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP;
iomux_v3_cfg_t power_key = NEW_PAD_CTRL(MX51_PAD_EIM_A27__GPIO2_21,
- PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | PAD_CTL_PUS_100K_UP);
+ PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH);
imx51_soc_init();
gpio_set_value(MX53_EVK_FEC_PHY_RST, 1);
}
-static struct fec_platform_data mx53_evk_fec_pdata = {
+static const struct fec_platform_data mx53_evk_fec_pdata __initconst = {
.phy = PHY_INTERFACE_MODE_RMII,
};
gpio_set_value(LOCO_FEC_PHY_RST, 1);
}
-static struct fec_platform_data mx53_loco_fec_data = {
+static const struct fec_platform_data mx53_loco_fec_data __initconst = {
.phy = PHY_INTERFACE_MODE_RMII,
};
gpio_set_value(SMD_FEC_PHY_RST, 1);
}
-static struct fec_platform_data mx53_smd_fec_data = {
+static const struct fec_platform_data mx53_smd_fec_data __initconst = {
.phy = PHY_INTERFACE_MODE_RMII,
};
{ /* sentinel */ }
};
-static void __init imx51_tzic_add_irq_domain(struct device_node *np,
+static int __init imx51_tzic_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
irq_domain_add_simple(np, 0);
+ return 0;
}
-static void __init imx51_gpio_add_irq_domain(struct device_node *np,
+static int __init imx51_gpio_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
- static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS -
- 32 * 4; /* imx51 gets 4 gpio ports */
+ static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+ gpio_irq_base -= 32;
irq_domain_add_simple(np, gpio_irq_base);
- gpio_irq_base += 32;
+
+ return 0;
}
static const struct of_device_id imx51_irq_match[] __initconst = {
{ /* sentinel */ }
};
-static void __init imx53_tzic_add_irq_domain(struct device_node *np,
+static int __init imx53_tzic_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
irq_domain_add_simple(np, 0);
+ return 0;
}
-static void __init imx53_gpio_add_irq_domain(struct device_node *np,
+static int __init imx53_gpio_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
- static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS -
- 32 * 7; /* imx53 gets 7 gpio ports */
+ static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+ gpio_irq_base -= 32;
irq_domain_add_simple(np, gpio_irq_base);
- gpio_irq_base += 32;
+
+ return 0;
}
static const struct of_device_id imx53_irq_match[] __initconst = {
#define MX28_INT_CAN1 9
#define MX28_INT_LRADC_TOUCH 10
#define MX28_INT_HSADC 13
-#define MX28_INT_IRADC_THRESH0 14
-#define MX28_INT_IRADC_THRESH1 15
+#define MX28_INT_LRADC_THRESH0 14
+#define MX28_INT_LRADC_THRESH1 15
#define MX28_INT_LRADC_CH0 16
#define MX28_INT_LRADC_CH1 17
#define MX28_INT_LRADC_CH2 18
*/
#define cpu_is_mx23() ( \
machine_is_mx23evk() || \
+ machine_is_stmp378x() || \
0)
#define cpu_is_mx28() ( \
machine_is_mx28evk() || \
MACHINE_START(M28EVK, "DENX M28 EVK")
.map_io = mx28_map_io,
.init_irq = mx28_init_irq,
- .init_machine = m28evk_init,
.timer = &m28evk_timer,
+ .init_machine = m28evk_init,
MACHINE_END
MACHINE_START(STMP378X, "STMP378X")
.map_io = mx23_map_io,
.init_irq = mx23_init_irq,
- .init_machine = stmp378x_dvb_init,
.timer = &stmp378x_dvb_timer,
+ .init_machine = stmp378x_dvb_init,
MACHINE_END
MX28_PAD_ENET0_CRS__ENET1_RX_EN,
};
-static struct fec_platform_data tx28_fec0_data = {
+static const struct fec_platform_data tx28_fec0_data __initconst = {
.phy = PHY_INTERFACE_MODE_RMII,
};
-static struct fec_platform_data tx28_fec1_data = {
+static const struct fec_platform_data tx28_fec1_data __initconst = {
.phy = PHY_INTERFACE_MODE_RMII,
};
#include <linux/kernel.h>
#include <linux/clk.h>
+#include <linux/cpufreq.h>
+#include <linux/delay.h>
#include <linux/io.h>
#include <asm/mach-types.h> /* for machine_is_* */
void __init omap1_clk_late_init(void)
{
- if (ck_dpll1.rate >= OMAP1_DPLL1_SANE_VALUE)
+ unsigned long rate = ck_dpll1.rate;
+
+ if (rate >= OMAP1_DPLL1_SANE_VALUE)
return;
+ /* System booting at unusable rate, force reprogramming of DPLL1 */
+ ck_dpll1_p->rate = 0;
+
/* Find the highest supported frequency and enable it */
if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
pr_err("System frequencies not set, using default. Check your config.\n");
omap_writew(0x2290, DPLL_CTL);
- omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
+ omap_writew(cpu_is_omap7xx() ? 0x2005 : 0x0005, ARM_CKCTL);
ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE;
}
propagate_rate(&ck_dpll1);
omap1_show_rates();
+ loops_per_jiffy = cpufreq_scale(loops_per_jiffy, rate, ck_dpll1.rate);
}
static void __init rx51_charger_init(void)
{
WARN_ON(gpio_request_one(RX51_USB_TRANSCEIVER_RST_GPIO,
- GPIOF_OUT_INIT_LOW, "isp1704_reset"));
+ GPIOF_OUT_INIT_HIGH, "isp1704_reset"));
platform_device_register(&rx51_charger_device);
}
pdata->reg_size = 4;
pdata->has_ccr = true;
}
+ pdata->set_clk_src = omap2_mcbsp_set_clk_src;
+ if (id == 1)
+ pdata->mux_signal = omap2_mcbsp1_mux_rx_clk;
if (oh->class->rev == MCBSP_CONFIG_TYPE3) {
if (id == 2)
name, oh->name);
return PTR_ERR(pdev);
}
- pdata->set_clk_src = omap2_mcbsp_set_clk_src;
- if (id == 1)
- pdata->mux_signal = omap2_mcbsp1_mux_rx_clk;
omap_mcbsp_count++;
return 0;
}
#include <linux/kernel.h>
#include <linux/suspend.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <linux/of.h>
#include <linux/kernel.h>
#include <linux/string.h>
+#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
s3c64xx_init_irq(~0 & ~(0xf << 5), ~0);
}
-struct sysdev_class s3c6400_sysclass = {
+static struct sysdev_class s3c6400_sysclass = {
.name = "s3c6400-core",
};
#include <plat/fb.h>
#include <plat/gpio-cfg.h>
-extern void s3c64xx_fb_gpio_setup_24bpp(void)
+void s3c64xx_fb_gpio_setup_24bpp(void)
{
s3c_gpio_cfgrange_nopull(S3C64XX_GPI(0), 16, S3C_GPIO_SFN(2));
s3c_gpio_cfgrange_nopull(S3C64XX_GPJ(0), 12, S3C_GPIO_SFN(2));
static struct platform_pwm_backlight_data smdkv210_bl_data = {
.pwm_id = 3,
+ .pwm_period_ns = 1000,
};
static void __init smdkv210_map_io(void)
-ifeq ($(CONFIG_ARCH_SA1100),y)
- zreladdr-$(CONFIG_SA1111) += 0xc0208000
+ifeq ($(CONFIG_SA1111),y)
+ zreladdr-y += 0xc0208000
else
zreladdr-y += 0xc0008000
endif
* the CPU clock speed on the fly.
*/
+#include <linux/module.h>
#include <linux/cpufreq.h>
#include <linux/clk.h>
#include <linux/err.h>
#define MX3_PWMSAR 0x0C /* PWM Sample Register */
#define MX3_PWMPR 0x10 /* PWM Period Register */
#define MX3_PWMCR_PRESCALER(x) (((x - 1) & 0xFFF) << 4)
+#define MX3_PWMCR_DOZEEN (1 << 24)
+#define MX3_PWMCR_WAITEN (1 << 23)
+#define MX3_PWMCR_DBGEN (1 << 22)
#define MX3_PWMCR_CLKSRC_IPG_HIGH (2 << 16)
#define MX3_PWMCR_CLKSRC_IPG (1 << 16)
#define MX3_PWMCR_EN (1 << 0)
writel(duty_cycles, pwm->mmio_base + MX3_PWMSAR);
writel(period_cycles, pwm->mmio_base + MX3_PWMPR);
- cr = MX3_PWMCR_PRESCALER(prescale) | MX3_PWMCR_EN;
+ cr = MX3_PWMCR_PRESCALER(prescale) |
+ MX3_PWMCR_DOZEEN | MX3_PWMCR_WAITEN |
+ MX3_PWMCR_DBGEN | MX3_PWMCR_EN;
if (cpu_is_mx25())
cr |= MX3_PWMCR_CLKSRC_IPG;
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/pwm_backlight.h>
-#include <linux/slab.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#define __NR_clock_adjtime 342
#define __NR_syncfs 343
#define __NR_setns 344
+#define __NR_process_vm_readv 345
+#define __NR_process_vm_writev 346
#ifdef __KERNEL__
-#define NR_syscalls 345
+#define NR_syscalls 347
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
.long sys_clock_adjtime
.long sys_syncfs
.long sys_setns
+ .long sys_process_vm_readv /* 345 */
+ .long sys_process_vm_writev
dp->rcv_buf_len = 4096;
- dp->ds_states = kzalloc(sizeof(ds_states_template),
- GFP_KERNEL);
+ dp->ds_states = kmemdup(ds_states_template,
+ sizeof(ds_states_template), GFP_KERNEL);
if (!dp->ds_states)
goto out_free_rcv_buf;
- memcpy(dp->ds_states, ds_states_template,
- sizeof(ds_states_template));
dp->num_ds_states = ARRAY_SIZE(ds_states_template);
for (i = 0; i < dp->num_ds_states; i++)
void *new_val;
int err;
- new_val = kmalloc(len, GFP_KERNEL);
+ new_val = kmemdup(val, len, GFP_KERNEL);
if (!new_val)
return -ENOMEM;
- memcpy(new_val, val, len);
-
err = -ENODEV;
mutex_lock(&of_set_property_mutex);
case 'i': /* INT */
if ((insn & 0xc1c00000) == 0x01000000) /* %HI */
set_addr(addr, q[1], fmangled, (insn & 0xffc00000) | (p[1] >> 10));
- else if ((insn & 0x80002000) == 0x80002000 &&
- (insn & 0x01800000) != 0x01800000) /* %LO */
+ else if ((insn & 0x80002000) == 0x80002000) /* %LO */
set_addr(addr, q[1], fmangled, (insn & 0xffffe000) | (p[1] & 0x3ff));
else {
prom_printf(insn_i, p, addr, insn);
*/
void tile_irq_activate(unsigned int irq, int tile_irq_type);
-/*
- * For onboard, non-PCI (e.g. TILE_IRQ_PERCPU) devices, drivers know
- * how to use enable/disable_percpu_irq() to manage interrupts on each
- * core. We can't use the generic enable/disable_irq() because they
- * use a single reference count per irq, rather than per cpu per irq.
- */
-void enable_percpu_irq(unsigned int irq);
-void disable_percpu_irq(unsigned int irq);
-
-
void setup_irq_regs(void);
#endif /* _ASM_TILE_IRQ_H */
* Remove an irq from the disabled mask. If we're in an interrupt
* context, defer enabling the HW interrupt until we leave.
*/
-void enable_percpu_irq(unsigned int irq)
+static void tile_irq_chip_enable(struct irq_data *d)
{
- get_cpu_var(irq_disable_mask) &= ~(1UL << irq);
+ get_cpu_var(irq_disable_mask) &= ~(1UL << d->irq);
if (__get_cpu_var(irq_depth) == 0)
- unmask_irqs(1UL << irq);
+ unmask_irqs(1UL << d->irq);
put_cpu_var(irq_disable_mask);
}
-EXPORT_SYMBOL(enable_percpu_irq);
/*
* Add an irq to the disabled mask. We disable the HW interrupt
* in an interrupt context, the return path is careful to avoid
* unmasking a newly disabled interrupt.
*/
-void disable_percpu_irq(unsigned int irq)
+static void tile_irq_chip_disable(struct irq_data *d)
{
- get_cpu_var(irq_disable_mask) |= (1UL << irq);
- mask_irqs(1UL << irq);
+ get_cpu_var(irq_disable_mask) |= (1UL << d->irq);
+ mask_irqs(1UL << d->irq);
put_cpu_var(irq_disable_mask);
}
-EXPORT_SYMBOL(disable_percpu_irq);
/* Mask an interrupt. */
static void tile_irq_chip_mask(struct irq_data *d)
static struct irq_chip tile_irq_chip = {
.name = "tile_irq_chip",
+ .irq_enable = tile_irq_chip_enable,
+ .irq_disable = tile_irq_chip_disable,
.irq_ack = tile_irq_chip_ack,
.irq_eoi = tile_irq_chip_eoi,
.irq_mask = tile_irq_chip_mask,
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/vmalloc.h>
+#include <linux/export.h>
#include <asm/tlbflush.h>
#include <asm/homecache.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/uaccess.h>
+#include <linux/export.h>
#include <asm/processor.h>
#include <asm/sections.h>
#include <linux/cpu.h>
#include <linux/slab.h>
#include <linux/smp.h>
+#include <linux/stat.h>
#include <hv/hypervisor.h>
/* Return a string queried from the hypervisor, truncated to page size. */
EXPORT_SYMBOL(current_text_addr);
EXPORT_SYMBOL(dump_stack);
+/* arch/tile/kernel/head.S */
+EXPORT_SYMBOL(empty_zero_page);
+
/* arch/tile/lib/, various memcpy files */
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(__copy_to_user_inatomic);
VM_BUG_ON(!virt_addr_valid((void *)addr));
page = virt_to_page((void *)addr);
if (put_page_testzero(page)) {
- int pages = (1 << order);
homecache_change_page_home(page, order, initial_page_home());
- while (pages--)
- __free_page(page++);
+ if (order == 0) {
+ free_hot_cold_page(page, 0);
+ } else {
+ init_page_count(page);
+ __free_pages(page, order);
+ }
}
}
This option compiles in support for the CE4100 SOC for settop
boxes and media devices.
-config X86_INTEL_MID
+config X86_WANT_INTEL_MID
bool "Intel MID platform support"
depends on X86_32
depends on X86_EXTENDED_PLATFORM
systems which do not have the PCI legacy interfaces (Moorestown,
Medfield). If you are building for a PC class system say N here.
-if X86_INTEL_MID
+if X86_WANT_INTEL_MID
+
+config X86_INTEL_MID
+ bool
config X86_MRST
bool "Moorestown MID platform"
select SPI
select INTEL_SCU_IPC
select X86_PLATFORM_DEVICES
+ select X86_INTEL_MID
---help---
Moorestown is Intel's Low Power Intel Architecture (LPIA) based Moblin
Internet Device(MID) platform. Moorestown consists of two chips:
}
EXPORT_SYMBOL_GPL(hpet_rtc_timer_init);
+static void hpet_disable_rtc_channel(void)
+{
+ unsigned long cfg;
+ cfg = hpet_readl(HPET_T1_CFG);
+ cfg &= ~HPET_TN_ENABLE;
+ hpet_writel(cfg, HPET_T1_CFG);
+}
+
/*
* The functions below are called from rtc driver.
* Return 0 if HPET is not being used.
return 0;
hpet_rtc_flags &= ~bit_mask;
+ if (unlikely(!hpet_rtc_flags))
+ hpet_disable_rtc_channel();
+
return 1;
}
EXPORT_SYMBOL_GPL(hpet_mask_rtc_irq_bit);
static void hpet_rtc_timer_reinit(void)
{
- unsigned int cfg, delta;
+ unsigned int delta;
int lost_ints = -1;
- if (unlikely(!hpet_rtc_flags)) {
- cfg = hpet_readl(HPET_T1_CFG);
- cfg &= ~HPET_TN_ENABLE;
- hpet_writel(cfg, HPET_T1_CFG);
- return;
- }
+ if (unlikely(!hpet_rtc_flags))
+ hpet_disable_rtc_channel();
if (!(hpet_rtc_flags & RTC_PIE) || hpet_pie_limit)
delta = hpet_default_delta;
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;
+ if (PageTail(page))
+ get_huge_page_tail(page);
(*nr)++;
page++;
refs++;
*/
static unsigned long efi_rt_eflags;
-static pgd_t efi_bak_pg_dir_pointer[2];
void efi_call_phys_prelog(void)
{
- unsigned long cr4;
- unsigned long temp;
struct desc_ptr gdt_descr;
local_irq_save(efi_rt_eflags);
- /*
- * If I don't have PAE, I should just duplicate two entries in page
- * directory. If I have PAE, I just need to duplicate one entry in
- * page directory.
- */
- cr4 = read_cr4_safe();
-
- if (cr4 & X86_CR4_PAE) {
- efi_bak_pg_dir_pointer[0].pgd =
- swapper_pg_dir[pgd_index(0)].pgd;
- swapper_pg_dir[0].pgd =
- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd;
- } else {
- efi_bak_pg_dir_pointer[0].pgd =
- swapper_pg_dir[pgd_index(0)].pgd;
- efi_bak_pg_dir_pointer[1].pgd =
- swapper_pg_dir[pgd_index(0x400000)].pgd;
- swapper_pg_dir[pgd_index(0)].pgd =
- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd;
- temp = PAGE_OFFSET + 0x400000;
- swapper_pg_dir[pgd_index(0x400000)].pgd =
- swapper_pg_dir[pgd_index(temp)].pgd;
- }
-
- /*
- * After the lock is released, the original page table is restored.
- */
+ load_cr3(initial_page_table);
__flush_tlb_all();
gdt_descr.address = __pa(get_cpu_gdt_table(0));
void efi_call_phys_epilog(void)
{
- unsigned long cr4;
struct desc_ptr gdt_descr;
gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
gdt_descr.size = GDT_SIZE - 1;
load_gdt(&gdt_descr);
- cr4 = read_cr4_safe();
-
- if (cr4 & X86_CR4_PAE) {
- swapper_pg_dir[pgd_index(0)].pgd =
- efi_bak_pg_dir_pointer[0].pgd;
- } else {
- swapper_pg_dir[pgd_index(0)].pgd =
- efi_bak_pg_dir_pointer[0].pgd;
- swapper_pg_dir[pgd_index(0x400000)].pgd =
- efi_bak_pg_dir_pointer[1].pgd;
- }
-
- /*
- * After the lock is released, the original page table is restored.
- */
+ load_cr3(swapper_pg_dir);
__flush_tlb_all();
local_irq_restore(efi_rt_eflags);
domid_t domid = DOMID_SELF;
int ret;
- ret = HYPERVISOR_memory_op(XENMEM_maximum_reservation, &domid);
- if (ret > 0)
- max_pages = ret;
+ /*
+ * For the initial domain we use the maximum reservation as
+ * the maximum page.
+ *
+ * For guest domains the current maximum reservation reflects
+ * the current maximum rather than the static maximum. In this
+ * case the e820 map provided to us will cover the static
+ * maximum region.
+ */
+ if (xen_initial_domain()) {
+ ret = HYPERVISOR_memory_op(XENMEM_maximum_reservation, &domid);
+ if (ret > 0)
+ max_pages = ret;
+ }
+
return min(max_pages, MAX_DOMAIN_PAGES);
}
if (drain_all)
blk_throtl_drain(q);
- __blk_run_queue(q);
+ /*
+ * This function might be called on a queue which failed
+ * driver init after queue creation. Some drivers
+ * (e.g. fd) get unhappy in such cases. Kick queue iff
+ * dispatch queue has something on it.
+ */
+ if (!list_empty(&q->queue_head))
+ __blk_run_queue(q);
if (drain_all)
nr_rqs = q->rq.count[0] + q->rq.count[1];
q->backing_dev_info.state = 0;
q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;
q->backing_dev_info.name = "block";
+ q->node = node_id;
err = bdi_init(&q->backing_dev_info);
if (err) {
if (!uninit_q)
return NULL;
- q = blk_init_allocated_queue_node(uninit_q, rfn, lock, node_id);
+ q = blk_init_allocated_queue(uninit_q, rfn, lock);
if (!q)
blk_cleanup_queue(uninit_q);
struct request_queue *
blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
spinlock_t *lock)
-{
- return blk_init_allocated_queue_node(q, rfn, lock, -1);
-}
-EXPORT_SYMBOL(blk_init_allocated_queue);
-
-struct request_queue *
-blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn,
- spinlock_t *lock, int node_id)
{
if (!q)
return NULL;
- q->node = node_id;
if (blk_init_free_list(q))
return NULL;
return NULL;
}
-EXPORT_SYMBOL(blk_init_allocated_queue_node);
+EXPORT_SYMBOL(blk_init_allocated_queue);
int blk_get_queue(struct request_queue *q)
{
}
}
- if (ret)
+ if (ret && ret != -EEXIST)
printk(KERN_ERR "cfq: cic link failed!\n");
return ret;
{
struct io_context *ioc = NULL;
struct cfq_io_context *cic;
+ int ret;
might_sleep_if(gfp_mask & __GFP_WAIT);
if (!ioc)
return NULL;
+retry:
cic = cfq_cic_lookup(cfqd, ioc);
if (cic)
goto out;
if (cic == NULL)
goto err;
- if (cfq_cic_link(cfqd, ioc, cic, gfp_mask))
+ ret = cfq_cic_link(cfqd, ioc, cic, gfp_mask);
+ if (ret == -EEXIST) {
+ /* someone has linked cic to ioc already */
+ cfq_cic_free(cic);
+ goto retry;
+ } else if (ret)
goto err_free;
out:
if (blkio_alloc_blkg_stats(&cfqg->blkg)) {
kfree(cfqg);
+
+ spin_lock(&cic_index_lock);
+ ida_remove(&cic_index_ida, cfqd->cic_index);
+ spin_unlock(&cic_index_lock);
+
kfree(cfqd);
return NULL;
}
*/
list_del_init(&dev->kobj.entry);
spin_unlock(&devices_kset->list_lock);
- /* Disable all device's runtime power management */
- pm_runtime_disable(dev);
+
+ /* Don't allow any more runtime suspends */
+ pm_runtime_get_noresume(dev);
+ pm_runtime_barrier(dev);
if (dev->bus && dev->bus->shutdown) {
dev_dbg(dev, "shutdown\n");
c->Request.Timeout = 0;
c->Request.CDB[0] = BMIC_WRITE;
c->Request.CDB[6] = BMIC_CACHE_FLUSH;
+ c->Request.CDB[7] = (size >> 8) & 0xFF;
+ c->Request.CDB[8] = size & 0xFF;
break;
case TEST_UNIT_READY:
c->Request.CDBLen = 6;
{
if (h->msix_vector || h->msi_vector) {
if (!request_irq(h->intr[h->intr_mode], msixhandler,
- IRQF_DISABLED, h->devname, h))
+ 0, h->devname, h))
return 0;
dev_err(&h->pdev->dev, "Unable to get msi irq %d"
" for %s\n", h->intr[h->intr_mode],
}
if (!request_irq(h->intr[h->intr_mode], intxhandler,
- IRQF_DISABLED, h->devname, h))
+ IRQF_SHARED, h->devname, h))
return 0;
dev_err(&h->pdev->dev, "Unable to get irq %d for %s\n",
h->intr[h->intr_mode], h->devname);
/*
* We use punch hole to reclaim the free space used by the
- * image a.k.a. discard. However we do support discard if
+ * image a.k.a. discard. However we do not support discard if
* encryption is enabled, because it may give an attacker
* useful information.
*/
}
q->limits.discard_granularity = inode->i_sb->s_blocksize;
- q->limits.discard_alignment = inode->i_sb->s_blocksize;
+ q->limits.discard_alignment = 0;
q->limits.max_discard_sectors = UINT_MAX >> 9;
q->limits.discard_zeroes_data = 1;
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
static int __rbd_init_snaps_header(struct rbd_device *rbd_dev);
static void rbd_dev_release(struct device *dev);
-static ssize_t rbd_snap_rollback(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t size);
static ssize_t rbd_snap_add(struct device *dev,
struct device_attribute *attr,
const char *buf,
u32 snap_count = le32_to_cpu(ondisk->snap_count);
int ret = -ENOMEM;
+ if (memcmp(ondisk, RBD_HEADER_TEXT, sizeof(RBD_HEADER_TEXT))) {
+ return -ENXIO;
+ }
+
init_rwsem(&header->snap_rwsem);
header->snap_names_len = le64_to_cpu(ondisk->snap_names_len);
header->snapc = kmalloc(sizeof(struct ceph_snap_context) +
return ret;
}
-/*
- * Request sync osd rollback
- */
-static int rbd_req_sync_rollback_obj(struct rbd_device *dev,
- u64 snapid,
- const char *obj)
-{
- struct ceph_osd_req_op *ops;
- int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_ROLLBACK, 0);
- if (ret < 0)
- return ret;
-
- ops[0].snap.snapid = snapid;
-
- ret = rbd_req_sync_op(dev, NULL,
- CEPH_NOSNAP,
- 0,
- CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK,
- ops,
- 1, obj, 0, 0, NULL, NULL, NULL);
-
- rbd_destroy_ops(ops);
-
- return ret;
-}
-
/*
* Request sync osd read
*/
goto out_dh;
rc = rbd_header_from_disk(header, dh, snap_count, GFP_KERNEL);
- if (rc < 0)
+ if (rc < 0) {
+ if (rc == -ENXIO) {
+ pr_warning("unrecognized header format"
+ " for image %s", rbd_dev->obj);
+ }
goto out_dh;
+ }
if (snap_count != header->total_snaps) {
snap_count = header->total_snaps;
static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh);
static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL);
static DEVICE_ATTR(create_snap, S_IWUSR, NULL, rbd_snap_add);
-static DEVICE_ATTR(rollback_snap, S_IWUSR, NULL, rbd_snap_rollback);
static struct attribute *rbd_attrs[] = {
&dev_attr_size.attr,
&dev_attr_current_snap.attr,
&dev_attr_refresh.attr,
&dev_attr_create_snap.attr,
- &dev_attr_rollback_snap.attr,
NULL
};
return ret;
}
-static ssize_t rbd_snap_rollback(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t count)
-{
- struct rbd_device *rbd_dev = dev_to_rbd(dev);
- int ret;
- u64 snapid;
- u64 cur_ofs;
- char *seg_name = NULL;
- char *snap_name = kmalloc(count + 1, GFP_KERNEL);
- ret = -ENOMEM;
- if (!snap_name)
- return ret;
-
- /* parse snaps add command */
- snprintf(snap_name, count, "%s", buf);
- seg_name = kmalloc(RBD_MAX_SEG_NAME_LEN + 1, GFP_NOIO);
- if (!seg_name)
- goto done;
-
- mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
-
- ret = snap_by_name(&rbd_dev->header, snap_name, &snapid, NULL);
- if (ret < 0)
- goto done_unlock;
-
- dout("snapid=%lld\n", snapid);
-
- cur_ofs = 0;
- while (cur_ofs < rbd_dev->header.image_size) {
- cur_ofs += rbd_get_segment(&rbd_dev->header,
- rbd_dev->obj,
- cur_ofs, (u64)-1,
- seg_name, NULL);
- dout("seg_name=%s\n", seg_name);
-
- ret = rbd_req_sync_rollback_obj(rbd_dev, snapid, seg_name);
- if (ret < 0)
- pr_warning("could not roll back obj %s err=%d\n",
- seg_name, ret);
- }
-
- ret = __rbd_update_snaps(rbd_dev);
- if (ret < 0)
- goto done_unlock;
-
- ret = count;
-
-done_unlock:
- mutex_unlock(&ctl_mutex);
-done:
- kfree(seg_name);
- kfree(snap_name);
-
- return ret;
-}
-
static struct bus_attribute rbd_bus_attrs[] = {
__ATTR(add, S_IWUSR, NULL, rbd_add),
__ATTR(remove, S_IWUSR, NULL, rbd_remove),
* handle GCR disks
*/
+#undef DEBUG
+
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/machdep.h>
#include <asm/pmac_feature.h>
-static DEFINE_MUTEX(swim3_mutex);
-static struct request_queue *swim3_queue;
-static struct gendisk *disks[2];
-static struct request *fd_req;
-
#define MAX_FLOPPIES 2
+static DEFINE_MUTEX(swim3_mutex);
+static struct gendisk *disks[MAX_FLOPPIES];
+
enum swim_state {
idle,
locating,
struct floppy_state {
enum swim_state state;
- spinlock_t lock;
struct swim3 __iomem *swim3; /* hardware registers */
struct dbdma_regs __iomem *dma; /* DMA controller registers */
int swim3_intr; /* interrupt number for SWIM3 */
int wanted;
struct macio_dev *mdev;
char dbdma_cmd_space[5 * sizeof(struct dbdma_cmd)];
+ int index;
+ struct request *cur_req;
};
+#define swim3_err(fmt, arg...) dev_err(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+#define swim3_warn(fmt, arg...) dev_warn(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+#define swim3_info(fmt, arg...) dev_info(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+
+#ifdef DEBUG
+#define swim3_dbg(fmt, arg...) dev_dbg(&fs->mdev->ofdev.dev, "[fd%d] " fmt, fs->index, arg)
+#else
+#define swim3_dbg(fmt, arg...) do { } while(0)
+#endif
+
static struct floppy_state floppy_states[MAX_FLOPPIES];
static int floppy_count = 0;
static DEFINE_SPINLOCK(swim3_lock);
0, 0, 0, 0, 0, 0
};
-static void swim3_select(struct floppy_state *fs, int sel);
-static void swim3_action(struct floppy_state *fs, int action);
-static int swim3_readbit(struct floppy_state *fs, int bit);
-static void do_fd_request(struct request_queue * q);
-static void start_request(struct floppy_state *fs);
-static void set_timeout(struct floppy_state *fs, int nticks,
- void (*proc)(unsigned long));
-static void scan_track(struct floppy_state *fs);
static void seek_track(struct floppy_state *fs, int n);
static void init_dma(struct dbdma_cmd *cp, int cmd, void *buf, int count);
-static void setup_transfer(struct floppy_state *fs);
static void act(struct floppy_state *fs);
static void scan_timeout(unsigned long data);
static void seek_timeout(unsigned long data);
unsigned int clearing);
static int floppy_revalidate(struct gendisk *disk);
-static bool swim3_end_request(int err, unsigned int nr_bytes)
+static bool swim3_end_request(struct floppy_state *fs, int err, unsigned int nr_bytes)
{
- if (__blk_end_request(fd_req, err, nr_bytes))
- return true;
+ struct request *req = fs->cur_req;
+ int rc;
- fd_req = NULL;
- return false;
-}
+ swim3_dbg(" end request, err=%d nr_bytes=%d, cur_req=%p\n",
+ err, nr_bytes, req);
-static bool swim3_end_request_cur(int err)
-{
- return swim3_end_request(err, blk_rq_cur_bytes(fd_req));
+ if (err)
+ nr_bytes = blk_rq_cur_bytes(req);
+ rc = __blk_end_request(req, err, nr_bytes);
+ if (rc)
+ return true;
+ fs->cur_req = NULL;
+ return false;
}
static void swim3_select(struct floppy_state *fs, int sel)
return (stat & DATA) == 0;
}
-static void do_fd_request(struct request_queue * q)
-{
- int i;
-
- for(i=0; i<floppy_count; i++) {
- struct floppy_state *fs = &floppy_states[i];
- if (fs->mdev->media_bay &&
- check_media_bay(fs->mdev->media_bay) != MB_FD)
- continue;
- start_request(fs);
- }
-}
-
static void start_request(struct floppy_state *fs)
{
struct request *req;
unsigned long x;
+ swim3_dbg("start request, initial state=%d\n", fs->state);
+
if (fs->state == idle && fs->wanted) {
fs->state = available;
wake_up(&fs->wait);
return;
}
while (fs->state == idle) {
- if (!fd_req) {
- fd_req = blk_fetch_request(swim3_queue);
- if (!fd_req)
+ swim3_dbg("start request, idle loop, cur_req=%p\n", fs->cur_req);
+ if (!fs->cur_req) {
+ fs->cur_req = blk_fetch_request(disks[fs->index]->queue);
+ swim3_dbg(" fetched request %p\n", fs->cur_req);
+ if (!fs->cur_req)
break;
}
- req = fd_req;
-#if 0
- printk("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n",
- req->rq_disk->disk_name, req->cmd,
- (long)blk_rq_pos(req), blk_rq_sectors(req), req->buffer);
- printk(" errors=%d current_nr_sectors=%u\n",
- req->errors, blk_rq_cur_sectors(req));
+ req = fs->cur_req;
+
+ if (fs->mdev->media_bay &&
+ check_media_bay(fs->mdev->media_bay) != MB_FD) {
+ swim3_dbg("%s", " media bay absent, dropping req\n");
+ swim3_end_request(fs, -ENODEV, 0);
+ continue;
+ }
+
+#if 0 /* This is really too verbose */
+ swim3_dbg("do_fd_req: dev=%s cmd=%d sec=%ld nr_sec=%u buf=%p\n",
+ req->rq_disk->disk_name, req->cmd,
+ (long)blk_rq_pos(req), blk_rq_sectors(req),
+ req->buffer);
+ swim3_dbg(" errors=%d current_nr_sectors=%u\n",
+ req->errors, blk_rq_cur_sectors(req));
#endif
if (blk_rq_pos(req) >= fs->total_secs) {
- swim3_end_request_cur(-EIO);
+ swim3_dbg(" pos out of bounds (%ld, max is %ld)\n",
+ (long)blk_rq_pos(req), (long)fs->total_secs);
+ swim3_end_request(fs, -EIO, 0);
continue;
}
if (fs->ejected) {
- swim3_end_request_cur(-EIO);
+ swim3_dbg("%s", " disk ejected\n");
+ swim3_end_request(fs, -EIO, 0);
continue;
}
if (fs->write_prot < 0)
fs->write_prot = swim3_readbit(fs, WRITE_PROT);
if (fs->write_prot) {
- swim3_end_request_cur(-EIO);
+ swim3_dbg("%s", " try to write, disk write protected\n");
+ swim3_end_request(fs, -EIO, 0);
continue;
}
}
x = ((long)blk_rq_pos(req)) % fs->secpercyl;
fs->head = x / fs->secpertrack;
fs->req_sector = x % fs->secpertrack + 1;
- fd_req = req;
fs->state = do_transfer;
fs->retries = 0;
}
}
+static void do_fd_request(struct request_queue * q)
+{
+ start_request(q->queuedata);
+}
+
static void set_timeout(struct floppy_state *fs, int nticks,
void (*proc)(unsigned long))
{
- unsigned long flags;
-
- spin_lock_irqsave(&fs->lock, flags);
if (fs->timeout_pending)
del_timer(&fs->timeout);
fs->timeout.expires = jiffies + nticks;
fs->timeout.data = (unsigned long) fs;
add_timer(&fs->timeout);
fs->timeout_pending = 1;
- spin_unlock_irqrestore(&fs->lock, flags);
}
static inline void scan_track(struct floppy_state *fs)
struct swim3 __iomem *sw = fs->swim3;
struct dbdma_cmd *cp = fs->dma_cmd;
struct dbdma_regs __iomem *dr = fs->dma;
+ struct request *req = fs->cur_req;
- if (blk_rq_cur_sectors(fd_req) <= 0) {
- printk(KERN_ERR "swim3: transfer 0 sectors?\n");
+ if (blk_rq_cur_sectors(req) <= 0) {
+ swim3_warn("%s", "Transfer 0 sectors ?\n");
return;
}
- if (rq_data_dir(fd_req) == WRITE)
+ if (rq_data_dir(req) == WRITE)
n = 1;
else {
n = fs->secpertrack - fs->req_sector + 1;
- if (n > blk_rq_cur_sectors(fd_req))
- n = blk_rq_cur_sectors(fd_req);
+ if (n > blk_rq_cur_sectors(req))
+ n = blk_rq_cur_sectors(req);
}
+
+ swim3_dbg(" setup xfer at sect %d (of %d) head %d for %d\n",
+ fs->req_sector, fs->secpertrack, fs->head, n);
+
fs->scount = n;
swim3_select(fs, fs->head? READ_DATA_1: READ_DATA_0);
out_8(&sw->sector, fs->req_sector);
out_8(&sw->nsect, n);
out_8(&sw->gap3, 0);
out_le32(&dr->cmdptr, virt_to_bus(cp));
- if (rq_data_dir(fd_req) == WRITE) {
+ if (rq_data_dir(req) == WRITE) {
/* Set up 3 dma commands: write preamble, data, postamble */
init_dma(cp, OUTPUT_MORE, write_preamble, sizeof(write_preamble));
++cp;
- init_dma(cp, OUTPUT_MORE, fd_req->buffer, 512);
+ init_dma(cp, OUTPUT_MORE, req->buffer, 512);
++cp;
init_dma(cp, OUTPUT_LAST, write_postamble, sizeof(write_postamble));
} else {
- init_dma(cp, INPUT_LAST, fd_req->buffer, n * 512);
+ init_dma(cp, INPUT_LAST, req->buffer, n * 512);
}
++cp;
out_le16(&cp->command, DBDMA_STOP);
out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS);
in_8(&sw->error);
out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS);
- if (rq_data_dir(fd_req) == WRITE)
+ if (rq_data_dir(req) == WRITE)
out_8(&sw->control_bis, WRITE_SECTORS);
in_8(&sw->intr);
out_le32(&dr->control, (RUN << 16) | RUN);
static void act(struct floppy_state *fs)
{
for (;;) {
+ swim3_dbg(" act loop, state=%d, req_cyl=%d, cur_cyl=%d\n",
+ fs->state, fs->req_cyl, fs->cur_cyl);
+
switch (fs->state) {
case idle:
return; /* XXX shouldn't get here */
case locating:
if (swim3_readbit(fs, TRACK_ZERO)) {
+ swim3_dbg("%s", " locate track 0\n");
fs->cur_cyl = 0;
if (fs->req_cyl == 0)
fs->state = do_transfer;
break;
}
if (fs->req_cyl == fs->cur_cyl) {
- printk("whoops, seeking 0\n");
+ swim3_warn("%s", "Whoops, seeking 0\n");
fs->state = do_transfer;
break;
}
case do_transfer:
if (fs->cur_cyl != fs->req_cyl) {
if (fs->retries > 5) {
- swim3_end_request_cur(-EIO);
+ swim3_err("Wrong cylinder in transfer, want: %d got %d\n",
+ fs->req_cyl, fs->cur_cyl);
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
return;
}
return;
default:
- printk(KERN_ERR"swim3: unknown state %d\n", fs->state);
+ swim3_err("Unknown state %d\n", fs->state);
return;
}
}
{
struct floppy_state *fs = (struct floppy_state *) data;
struct swim3 __iomem *sw = fs->swim3;
+ unsigned long flags;
+
+ swim3_dbg("* scan timeout, state=%d\n", fs->state);
+ spin_lock_irqsave(&swim3_lock, flags);
fs->timeout_pending = 0;
out_8(&sw->control_bic, DO_ACTION | WRITE_SECTORS);
out_8(&sw->select, RELAX);
out_8(&sw->intr_enable, 0);
fs->cur_cyl = -1;
if (fs->retries > 5) {
- swim3_end_request_cur(-EIO);
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
start_request(fs);
} else {
fs->state = jogging;
act(fs);
}
+ spin_unlock_irqrestore(&swim3_lock, flags);
}
static void seek_timeout(unsigned long data)
{
struct floppy_state *fs = (struct floppy_state *) data;
struct swim3 __iomem *sw = fs->swim3;
+ unsigned long flags;
+
+ swim3_dbg("* seek timeout, state=%d\n", fs->state);
+ spin_lock_irqsave(&swim3_lock, flags);
fs->timeout_pending = 0;
out_8(&sw->control_bic, DO_SEEK);
out_8(&sw->select, RELAX);
out_8(&sw->intr_enable, 0);
- printk(KERN_ERR "swim3: seek timeout\n");
- swim3_end_request_cur(-EIO);
+ swim3_err("%s", "Seek timeout\n");
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
start_request(fs);
+ spin_unlock_irqrestore(&swim3_lock, flags);
}
static void settle_timeout(unsigned long data)
{
struct floppy_state *fs = (struct floppy_state *) data;
struct swim3 __iomem *sw = fs->swim3;
+ unsigned long flags;
+
+ swim3_dbg("* settle timeout, state=%d\n", fs->state);
+ spin_lock_irqsave(&swim3_lock, flags);
fs->timeout_pending = 0;
if (swim3_readbit(fs, SEEK_COMPLETE)) {
out_8(&sw->select, RELAX);
fs->state = locating;
act(fs);
- return;
+ goto unlock;
}
out_8(&sw->select, RELAX);
if (fs->settle_time < 2*HZ) {
++fs->settle_time;
set_timeout(fs, 1, settle_timeout);
- return;
+ goto unlock;
}
- printk(KERN_ERR "swim3: seek settle timeout\n");
- swim3_end_request_cur(-EIO);
+ swim3_err("%s", "Seek settle timeout\n");
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
start_request(fs);
+ unlock:
+ spin_unlock_irqrestore(&swim3_lock, flags);
}
static void xfer_timeout(unsigned long data)
struct floppy_state *fs = (struct floppy_state *) data;
struct swim3 __iomem *sw = fs->swim3;
struct dbdma_regs __iomem *dr = fs->dma;
+ unsigned long flags;
int n;
+ swim3_dbg("* xfer timeout, state=%d\n", fs->state);
+
+ spin_lock_irqsave(&swim3_lock, flags);
fs->timeout_pending = 0;
out_le32(&dr->control, RUN << 16);
/* We must wait a bit for dbdma to stop */
out_8(&sw->intr_enable, 0);
out_8(&sw->control_bic, WRITE_SECTORS | DO_ACTION);
out_8(&sw->select, RELAX);
- printk(KERN_ERR "swim3: timeout %sing sector %ld\n",
- (rq_data_dir(fd_req)==WRITE? "writ": "read"),
- (long)blk_rq_pos(fd_req));
- swim3_end_request_cur(-EIO);
+ swim3_err("Timeout %sing sector %ld\n",
+ (rq_data_dir(fs->cur_req)==WRITE? "writ": "read"),
+ (long)blk_rq_pos(fs->cur_req));
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
start_request(fs);
+ spin_unlock_irqrestore(&swim3_lock, flags);
}
static irqreturn_t swim3_interrupt(int irq, void *dev_id)
int stat, resid;
struct dbdma_regs __iomem *dr;
struct dbdma_cmd *cp;
+ unsigned long flags;
+ struct request *req = fs->cur_req;
+
+ swim3_dbg("* interrupt, state=%d\n", fs->state);
+ spin_lock_irqsave(&swim3_lock, flags);
intr = in_8(&sw->intr);
err = (intr & ERROR_INTR)? in_8(&sw->error): 0;
if ((intr & ERROR_INTR) && fs->state != do_transfer)
- printk(KERN_ERR "swim3_interrupt, state=%d, dir=%x, intr=%x, err=%x\n",
- fs->state, rq_data_dir(fd_req), intr, err);
+ swim3_err("Non-transfer error interrupt: state=%d, dir=%x, intr=%x, err=%x\n",
+ fs->state, rq_data_dir(req), intr, err);
switch (fs->state) {
case locating:
if (intr & SEEN_SECTOR) {
del_timer(&fs->timeout);
fs->timeout_pending = 0;
if (sw->ctrack == 0xff) {
- printk(KERN_ERR "swim3: seen sector but cyl=ff?\n");
+ swim3_err("%s", "Seen sector but cyl=ff?\n");
fs->cur_cyl = -1;
if (fs->retries > 5) {
- swim3_end_request_cur(-EIO);
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
start_request(fs);
} else {
fs->cur_cyl = sw->ctrack;
fs->cur_sector = sw->csect;
if (fs->expect_cyl != -1 && fs->expect_cyl != fs->cur_cyl)
- printk(KERN_ERR "swim3: expected cyl %d, got %d\n",
- fs->expect_cyl, fs->cur_cyl);
+ swim3_err("Expected cyl %d, got %d\n",
+ fs->expect_cyl, fs->cur_cyl);
fs->state = do_transfer;
act(fs);
}
fs->timeout_pending = 0;
dr = fs->dma;
cp = fs->dma_cmd;
- if (rq_data_dir(fd_req) == WRITE)
+ if (rq_data_dir(req) == WRITE)
++cp;
/*
* Check that the main data transfer has finished.
if (intr & ERROR_INTR) {
n = fs->scount - 1 - resid / 512;
if (n > 0) {
- blk_update_request(fd_req, 0, n << 9);
+ blk_update_request(req, 0, n << 9);
fs->req_sector += n;
}
if (fs->retries < 5) {
++fs->retries;
act(fs);
} else {
- printk("swim3: error %sing block %ld (err=%x)\n",
- rq_data_dir(fd_req) == WRITE? "writ": "read",
- (long)blk_rq_pos(fd_req), err);
- swim3_end_request_cur(-EIO);
+ swim3_err("Error %sing block %ld (err=%x)\n",
+ rq_data_dir(req) == WRITE? "writ": "read",
+ (long)blk_rq_pos(req), err);
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
}
} else {
if ((stat & ACTIVE) == 0 || resid != 0) {
/* musta been an error */
- printk(KERN_ERR "swim3: fd dma: stat=%x resid=%d\n", stat, resid);
- printk(KERN_ERR " state=%d, dir=%x, intr=%x, err=%x\n",
- fs->state, rq_data_dir(fd_req), intr, err);
- swim3_end_request_cur(-EIO);
+ swim3_err("fd dma error: stat=%x resid=%d\n", stat, resid);
+ swim3_err(" state=%d, dir=%x, intr=%x, err=%x\n",
+ fs->state, rq_data_dir(req), intr, err);
+ swim3_end_request(fs, -EIO, 0);
fs->state = idle;
start_request(fs);
break;
}
- if (swim3_end_request(0, fs->scount << 9)) {
+ fs->retries = 0;
+ if (swim3_end_request(fs, 0, fs->scount << 9)) {
fs->req_sector += fs->scount;
if (fs->req_sector > fs->secpertrack) {
fs->req_sector -= fs->secpertrack;
start_request(fs);
break;
default:
- printk(KERN_ERR "swim3: don't know what to do in state %d\n", fs->state);
+ swim3_err("Don't know what to do in state %d\n", fs->state);
}
+ spin_unlock_irqrestore(&swim3_lock, flags);
return IRQ_HANDLED;
}
}
*/
+/* Called under the mutex to grab exclusive access to a drive */
static int grab_drive(struct floppy_state *fs, enum swim_state state,
int interruptible)
{
unsigned long flags;
- spin_lock_irqsave(&fs->lock, flags);
- if (fs->state != idle) {
+ swim3_dbg("%s", "-> grab drive\n");
+
+ spin_lock_irqsave(&swim3_lock, flags);
+ if (fs->state != idle && fs->state != available) {
++fs->wanted;
while (fs->state != available) {
+ spin_unlock_irqrestore(&swim3_lock, flags);
if (interruptible && signal_pending(current)) {
--fs->wanted;
- spin_unlock_irqrestore(&fs->lock, flags);
return -EINTR;
}
interruptible_sleep_on(&fs->wait);
+ spin_lock_irqsave(&swim3_lock, flags);
}
--fs->wanted;
}
fs->state = state;
- spin_unlock_irqrestore(&fs->lock, flags);
+ spin_unlock_irqrestore(&swim3_lock, flags);
+
return 0;
}
{
unsigned long flags;
- spin_lock_irqsave(&fs->lock, flags);
+ swim3_dbg("%s", "-> release drive\n");
+
+ spin_lock_irqsave(&swim3_lock, flags);
fs->state = idle;
start_request(fs);
- spin_unlock_irqrestore(&fs->lock, flags);
+ spin_unlock_irqrestore(&swim3_lock, flags);
}
static int fd_eject(struct floppy_state *fs)
{
struct floppy_state *fs = disk->private_data;
struct swim3 __iomem *sw = fs->swim3;
+
mutex_lock(&swim3_mutex);
if (fs->ref_count > 0 && --fs->ref_count == 0) {
swim3_action(fs, MOTOR_OFF);
.revalidate_disk= floppy_revalidate,
};
+static void swim3_mb_event(struct macio_dev* mdev, int mb_state)
+{
+ struct floppy_state *fs = macio_get_drvdata(mdev);
+ struct swim3 __iomem *sw = fs->swim3;
+
+ if (!fs)
+ return;
+ if (mb_state != MB_FD)
+ return;
+
+ /* Clear state */
+ out_8(&sw->intr_enable, 0);
+ in_8(&sw->intr);
+ in_8(&sw->error);
+}
+
static int swim3_add_device(struct macio_dev *mdev, int index)
{
struct device_node *swim = mdev->ofdev.dev.of_node;
struct floppy_state *fs = &floppy_states[index];
int rc = -EBUSY;
+ /* Do this first for message macros */
+ memset(fs, 0, sizeof(*fs));
+ fs->mdev = mdev;
+ fs->index = index;
+
/* Check & Request resources */
if (macio_resource_count(mdev) < 2) {
- printk(KERN_WARNING "ifd%d: no address for %s\n",
- index, swim->full_name);
+ swim3_err("%s", "No address in device-tree\n");
return -ENXIO;
}
- if (macio_irq_count(mdev) < 2) {
- printk(KERN_WARNING "fd%d: no intrs for device %s\n",
- index, swim->full_name);
+ if (macio_irq_count(mdev) < 1) {
+ swim3_err("%s", "No interrupt in device-tree\n");
+ return -ENXIO;
}
if (macio_request_resource(mdev, 0, "swim3 (mmio)")) {
- printk(KERN_ERR "fd%d: can't request mmio resource for %s\n",
- index, swim->full_name);
+ swim3_err("%s", "Can't request mmio resource\n");
return -EBUSY;
}
if (macio_request_resource(mdev, 1, "swim3 (dma)")) {
- printk(KERN_ERR "fd%d: can't request dma resource for %s\n",
- index, swim->full_name);
+ swim3_err("%s", "Can't request dma resource\n");
macio_release_resource(mdev, 0);
return -EBUSY;
}
if (mdev->media_bay == NULL)
pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 1);
- memset(fs, 0, sizeof(*fs));
- spin_lock_init(&fs->lock);
fs->state = idle;
fs->swim3 = (struct swim3 __iomem *)
ioremap(macio_resource_start(mdev, 0), 0x200);
if (fs->swim3 == NULL) {
- printk("fd%d: couldn't map registers for %s\n",
- index, swim->full_name);
+ swim3_err("%s", "Couldn't map mmio registers\n");
rc = -ENOMEM;
goto out_release;
}
fs->dma = (struct dbdma_regs __iomem *)
ioremap(macio_resource_start(mdev, 1), 0x200);
if (fs->dma == NULL) {
- printk("fd%d: couldn't map DMA for %s\n",
- index, swim->full_name);
+ swim3_err("%s", "Couldn't map dma registers\n");
iounmap(fs->swim3);
rc = -ENOMEM;
goto out_release;
fs->secpercyl = 36;
fs->secpertrack = 18;
fs->total_secs = 2880;
- fs->mdev = mdev;
init_waitqueue_head(&fs->wait);
fs->dma_cmd = (struct dbdma_cmd *) DBDMA_ALIGN(fs->dbdma_cmd_space);
memset(fs->dma_cmd, 0, 2 * sizeof(struct dbdma_cmd));
st_le16(&fs->dma_cmd[1].command, DBDMA_STOP);
+ if (mdev->media_bay == NULL || check_media_bay(mdev->media_bay) == MB_FD)
+ swim3_mb_event(mdev, MB_FD);
+
if (request_irq(fs->swim3_intr, swim3_interrupt, 0, "SWIM3", fs)) {
- printk(KERN_ERR "fd%d: couldn't request irq %d for %s\n",
- index, fs->swim3_intr, swim->full_name);
+ swim3_err("%s", "Couldn't request interrupt\n");
pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 0);
goto out_unmap;
return -EBUSY;
}
-/*
- if (request_irq(fs->dma_intr, fd_dma_interrupt, 0, "SWIM3-dma", fs)) {
- printk(KERN_ERR "Couldn't get irq %d for SWIM3 DMA",
- fs->dma_intr);
- return -EBUSY;
- }
-*/
init_timer(&fs->timeout);
- printk(KERN_INFO "fd%d: SWIM3 floppy controller %s\n", floppy_count,
+ swim3_info("SWIM3 floppy controller %s\n",
mdev->media_bay ? "in media bay" : "");
return 0;
static int __devinit swim3_attach(struct macio_dev *mdev, const struct of_device_id *match)
{
- int i, rc;
struct gendisk *disk;
+ int index, rc;
+
+ index = floppy_count++;
+ if (index >= MAX_FLOPPIES)
+ return -ENXIO;
/* Add the drive */
- rc = swim3_add_device(mdev, floppy_count);
+ rc = swim3_add_device(mdev, index);
if (rc)
return rc;
+ /* Now register that disk. Same comment about failure handling */
+ disk = disks[index] = alloc_disk(1);
+ if (disk == NULL)
+ return -ENOMEM;
+ disk->queue = blk_init_queue(do_fd_request, &swim3_lock);
+ if (disk->queue == NULL) {
+ put_disk(disk);
+ return -ENOMEM;
+ }
+ disk->queue->queuedata = &floppy_states[index];
- /* Now create the queue if not there yet */
- if (swim3_queue == NULL) {
+ if (index == 0) {
/* If we failed, there isn't much we can do as the driver is still
* too dumb to remove the device, just bail out
*/
if (register_blkdev(FLOPPY_MAJOR, "fd"))
return 0;
- swim3_queue = blk_init_queue(do_fd_request, &swim3_lock);
- if (swim3_queue == NULL) {
- unregister_blkdev(FLOPPY_MAJOR, "fd");
- return 0;
- }
}
- /* Now register that disk. Same comment about failure handling */
- i = floppy_count++;
- disk = disks[i] = alloc_disk(1);
- if (disk == NULL)
- return 0;
-
disk->major = FLOPPY_MAJOR;
- disk->first_minor = i;
+ disk->first_minor = index;
disk->fops = &floppy_fops;
- disk->private_data = &floppy_states[i];
- disk->queue = swim3_queue;
+ disk->private_data = &floppy_states[index];
disk->flags |= GENHD_FL_REMOVABLE;
- sprintf(disk->disk_name, "fd%d", i);
+ sprintf(disk->disk_name, "fd%d", index);
set_capacity(disk, 2880);
add_disk(disk);
.of_match_table = swim3_match,
},
.probe = swim3_attach,
+#ifdef CONFIG_PMAC_MEDIABAY
+ .mediabay_event = swim3_mb_event,
+#endif
#if 0
.suspend = swim3_suspend,
.resume = swim3_resume,
ibft_cleanup();
}
+#ifdef CONFIG_ACPI
+static const struct {
+ char *sign;
+} ibft_signs[] = {
+ /*
+ * One spec says "IBFT", the other says "iBFT". We have to check
+ * for both.
+ */
+ { ACPI_SIG_IBFT },
+ { "iBFT" },
+};
+
+static void __init acpi_find_ibft_region(void)
+{
+ int i;
+ struct acpi_table_header *table = NULL;
+
+ if (acpi_disabled)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++) {
+ acpi_get_table(ibft_signs[i].sign, 0, &table);
+ ibft_addr = (struct acpi_table_ibft *)table;
+ }
+}
+#else
+static void __init acpi_find_ibft_region(void)
+{
+}
+#endif
+
/*
* ibft_init() - creates sysfs tree entries for the iBFT data.
*/
{
int rc = 0;
+ /*
+ As on UEFI systems the setup_arch()/find_ibft_region()
+ is called before ACPI tables are parsed and it only does
+ legacy finding.
+ */
+ if (!ibft_addr)
+ acpi_find_ibft_region();
+
if (ibft_addr) {
- printk(KERN_INFO "iBFT detected at 0x%llx.\n",
- (u64)isa_virt_to_bus(ibft_addr));
+ pr_info("iBFT detected.\n");
rc = ibft_check_device();
if (rc)
static const struct {
char *sign;
} ibft_signs[] = {
-#ifdef CONFIG_ACPI
- /*
- * One spec says "IBFT", the other says "iBFT". We have to check
- * for both.
- */
- { ACPI_SIG_IBFT },
-#endif
{ "iBFT" },
{ "BIFT" }, /* Broadcom iSCSI Offload */
};
#define VGA_MEM 0xA0000 /* VGA buffer */
#define VGA_SIZE 0x20000 /* 128kB */
-#ifdef CONFIG_ACPI
-static int __init acpi_find_ibft(struct acpi_table_header *header)
-{
- ibft_addr = (struct acpi_table_ibft *)header;
- return 0;
-}
-#endif /* CONFIG_ACPI */
-
static int __init find_ibft_in_mem(void)
{
unsigned long pos;
* the table cannot be valid. */
if (pos + len <= (IBFT_END-1)) {
ibft_addr = (struct acpi_table_ibft *)virt;
+ pr_info("iBFT found at 0x%lx.\n", pos);
goto done;
}
}
*/
unsigned long __init find_ibft_region(unsigned long *sizep)
{
-#ifdef CONFIG_ACPI
- int i;
-#endif
ibft_addr = NULL;
-#ifdef CONFIG_ACPI
- for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++)
- acpi_table_parse(ibft_signs[i].sign, acpi_find_ibft);
-#endif /* CONFIG_ACPI */
-
/* iBFT 1.03 section 1.4.3.1 mandates that UEFI machines will
* only use ACPI for this */
- if (!ibft_addr && !efi_enabled)
+ if (!efi_enabled)
find_ibft_in_mem();
if (ibft_addr) {
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
#include <linux/mfd/da9052/pdata.h>
-#include <linux/mfd/da9052/gpio.h>
#define DA9052_INPUT 1
#define DA9052_OUTPUT_OPENDRAIN 2
#define DA9052_GPIO_MASK_UPPER_NIBBLE 0xF0
#define DA9052_GPIO_MASK_LOWER_NIBBLE 0x0F
#define DA9052_GPIO_NIBBLE_SHIFT 4
+#define DA9052_IRQ_GPI0 16
+#define DA9052_GPIO_ODD_SHIFT 7
+#define DA9052_GPIO_EVEN_SHIFT 3
struct da9052_gpio {
struct da9052 *da9052;
static void da9052_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
{
struct da9052_gpio *gpio = to_da9052_gpio(gc);
- unsigned char register_value = 0;
int ret;
if (da9052_gpio_port_odd(offset)) {
- if (value) {
- register_value = DA9052_GPIO_ODD_PORT_MODE;
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
DA9052_GPIO_0_1_REG,
DA9052_GPIO_ODD_PORT_MODE,
- register_value);
+ value << DA9052_GPIO_ODD_SHIFT);
if (ret != 0)
dev_err(gpio->da9052->dev,
"Failed to updated gpio odd reg,%d",
ret);
- }
} else {
- if (value) {
- register_value = DA9052_GPIO_EVEN_PORT_MODE;
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
DA9052_GPIO_0_1_REG,
DA9052_GPIO_EVEN_PORT_MODE,
- register_value);
+ value << DA9052_GPIO_EVEN_SHIFT);
if (ret != 0)
dev_err(gpio->da9052->dev,
"Failed to updated gpio even reg,%d",
ret);
- }
}
}
.direction_input = da9052_gpio_direction_input,
.direction_output = da9052_gpio_direction_output,
.to_irq = da9052_gpio_to_irq,
- .can_sleep = 1;
- .ngpio = 16;
- .base = -1;
+ .can_sleep = 1,
+ .ngpio = 16,
+ .base = -1,
};
static int __devinit da9052_gpio_probe(struct platform_device *pdev)
&chip->reg->regs[chip->ch].imask);
}
+static void ioh_irq_disable(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct ioh_gpio *chip = gc->private;
+ unsigned long flags;
+ u32 ien;
+
+ spin_lock_irqsave(&chip->spinlock, flags);
+ ien = ioread32(&chip->reg->regs[chip->ch].ien);
+ ien &= ~(1 << (d->irq - chip->irq_base));
+ iowrite32(ien, &chip->reg->regs[chip->ch].ien);
+ spin_unlock_irqrestore(&chip->spinlock, flags);
+}
+
+static void ioh_irq_enable(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct ioh_gpio *chip = gc->private;
+ unsigned long flags;
+ u32 ien;
+
+ spin_lock_irqsave(&chip->spinlock, flags);
+ ien = ioread32(&chip->reg->regs[chip->ch].ien);
+ ien |= 1 << (d->irq - chip->irq_base);
+ iowrite32(ien, &chip->reg->regs[chip->ch].ien);
+ spin_unlock_irqrestore(&chip->spinlock, flags);
+}
+
static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
{
struct ioh_gpio *chip = dev_id;
int i, j;
int ret = IRQ_NONE;
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < 8; i++, chip++) {
reg_val = ioread32(&chip->reg->regs[i].istatus);
for (j = 0; j < num_ports[i]; j++) {
if (reg_val & BIT(j)) {
ct->chip.irq_mask = ioh_irq_mask;
ct->chip.irq_unmask = ioh_irq_unmask;
ct->chip.irq_set_type = ioh_irq_type;
+ ct->chip.irq_disable = ioh_irq_disable;
+ ct->chip.irq_enable = ioh_irq_enable;
irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
return 0;
}
+static int mpc5121_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+ /* GPIO 28..31 are input only on MPC5121 */
+ if (gpio >= 28)
+ return -EINVAL;
+
+ return mpc8xxx_gpio_dir_out(gc, gpio, val);
+}
+
static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
mm_gc->save_regs = mpc8xxx_gpio_save_regs;
gc->ngpio = MPC8XXX_GPIO_PINS;
gc->direction_input = mpc8xxx_gpio_dir_in;
- gc->direction_output = mpc8xxx_gpio_dir_out;
- if (of_device_is_compatible(np, "fsl,mpc8572-gpio"))
- gc->get = mpc8572_gpio_get;
- else
- gc->get = mpc8xxx_gpio_get;
+ gc->direction_output = of_device_is_compatible(np, "fsl,mpc5121-gpio") ?
+ mpc5121_gpio_dir_out : mpc8xxx_gpio_dir_out;
+ gc->get = of_device_is_compatible(np, "fsl,mpc8572-gpio") ?
+ mpc8572_gpio_get : mpc8xxx_gpio_get;
gc->set = mpc8xxx_gpio_set;
gc->to_irq = mpc8xxx_gpio_to_irq;
int ret, irq, i;
static DECLARE_BITMAP(init_irq, NR_IRQS);
- pdata = dev->dev.platform_data;
- if (pdata == NULL)
- return -ENODEV;
-
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
const struct intel_device_info *info = INTEL_INFO(dev);
seq_printf(m, "gen: %d\n", info->gen);
+ seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
#define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
B(is_mobile);
B(is_i85x);
diff1 = now - dev_priv->last_time1;
+ /* Prevent division-by-zero if we are asking too fast.
+ * Also, we don't get interesting results if we are polling
+ * faster than once in 10ms, so just return the saved value
+ * in such cases.
+ */
+ if (diff1 <= 10)
+ return dev_priv->chipset_power;
+
count1 = I915_READ(DMIEC);
count2 = I915_READ(DDREC);
count3 = I915_READ(CSIEC);
dev_priv->last_count1 = total_count;
dev_priv->last_time1 = now;
+ dev_priv->chipset_power = ret;
+
return ret;
}
MODULE_PARM_DESC(powersave,
"Enable powersavings, fbc, downclocking, etc. (default: true)");
-unsigned int i915_semaphores __read_mostly = 0;
+int i915_semaphores __read_mostly = -1;
module_param_named(semaphores, i915_semaphores, int, 0600);
MODULE_PARM_DESC(semaphores,
- "Use semaphores for inter-ring sync (default: false)");
+ "Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))");
-unsigned int i915_enable_rc6 __read_mostly = 0;
+int i915_enable_rc6 __read_mostly = -1;
module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600);
MODULE_PARM_DESC(i915_enable_rc6,
- "Enable power-saving render C-state 6 (default: true)");
+ "Enable power-saving render C-state 6 (default: -1 (use per-chip default)");
int i915_enable_fbc __read_mostly = -1;
module_param_named(i915_enable_fbc, i915_enable_fbc, int, 0600);
}
}
-static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
+void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
{
int count;
udelay(10);
}
+void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv)
+{
+ int count;
+
+ count = 0;
+ while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1))
+ udelay(10);
+
+ I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 1);
+ POSTING_READ(FORCEWAKE_MT);
+
+ count = 0;
+ while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_MT_ACK) & 1) == 0)
+ udelay(10);
+}
+
/*
* Generally this is called implicitly by the register read function. However,
* if some sequence requires the GT to not power down then this function should
/* Forcewake is atomic in case we get in here without the lock */
if (atomic_add_return(1, &dev_priv->forcewake_count) == 1)
- __gen6_gt_force_wake_get(dev_priv);
+ dev_priv->display.force_wake_get(dev_priv);
}
-static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
+void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
{
I915_WRITE_NOTRACE(FORCEWAKE, 0);
POSTING_READ(FORCEWAKE);
}
+void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv)
+{
+ I915_WRITE_NOTRACE(FORCEWAKE_MT, (1<<16) | 0);
+ POSTING_READ(FORCEWAKE_MT);
+}
+
/*
* see gen6_gt_force_wake_get()
*/
WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex));
if (atomic_dec_and_test(&dev_priv->forcewake_count))
- __gen6_gt_force_wake_put(dev_priv);
+ dev_priv->display.force_wake_put(dev_priv);
}
void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
/* We give fast paths for the really cool registers */
#define NEEDS_FORCE_WAKE(dev_priv, reg) \
(((dev_priv)->info->gen >= 6) && \
- ((reg) < 0x40000) && \
- ((reg) != FORCEWAKE))
+ ((reg) < 0x40000) && \
+ ((reg) != FORCEWAKE) && \
+ ((reg) != ECOBUS))
#define __i915_read(x, y) \
u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
struct opregion_acpi;
struct opregion_swsci;
struct opregion_asle;
+struct drm_i915_private;
struct intel_opregion {
struct opregion_header *header;
struct drm_i915_gem_object *obj);
int (*update_plane)(struct drm_crtc *crtc, struct drm_framebuffer *fb,
int x, int y);
+ void (*force_wake_get)(struct drm_i915_private *dev_priv);
+ void (*force_wake_put)(struct drm_i915_private *dev_priv);
/* clock updates for mode set */
/* cursor updates */
/* render clock increase/decrease */
u64 last_count1;
unsigned long last_time1;
+ unsigned long chipset_power;
u64 last_count2;
struct timespec last_time2;
unsigned long gfx_power;
extern unsigned int i915_fbpercrtc __always_unused;
extern int i915_panel_ignore_lid __read_mostly;
extern unsigned int i915_powersave __read_mostly;
-extern unsigned int i915_semaphores __read_mostly;
+extern int i915_semaphores __read_mostly;
extern unsigned int i915_lvds_downclock __read_mostly;
extern int i915_panel_use_ssc __read_mostly;
extern int i915_vbt_sdvo_panel_type __read_mostly;
-extern unsigned int i915_enable_rc6 __read_mostly;
+extern int i915_enable_rc6 __read_mostly;
extern int i915_enable_fbc __read_mostly;
extern bool i915_enable_hangcheck __read_mostly;
extern void intel_detect_pch(struct drm_device *dev);
extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);
+extern void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
+extern void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv);
+extern void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
+extern void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv);
+
/* overlay */
#ifdef CONFIG_DEBUG_FS
extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
/* We give fast paths for the really cool registers */
#define NEEDS_FORCE_WAKE(dev_priv, reg) \
(((dev_priv)->info->gen >= 6) && \
- ((reg) < 0x40000) && \
- ((reg) != FORCEWAKE))
+ ((reg) < 0x40000) && \
+ ((reg) != FORCEWAKE) && \
+ ((reg) != ECOBUS))
#define __i915_read(x, y) \
u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
#include "i915_drv.h"
#include "i915_trace.h"
#include "intel_drv.h"
+#include <linux/dma_remapping.h>
struct change_domains {
uint32_t invalidate_domains;
return 0;
}
+static bool
+intel_enable_semaphores(struct drm_device *dev)
+{
+ if (INTEL_INFO(dev)->gen < 6)
+ return 0;
+
+ if (i915_semaphores >= 0)
+ return i915_semaphores;
+
+ /* Enable semaphores on SNB when IO remapping is off */
+ if (INTEL_INFO(dev)->gen == 6)
+ return !intel_iommu_enabled;
+
+ return 1;
+}
+
static int
i915_gem_execbuffer_sync_rings(struct drm_i915_gem_object *obj,
struct intel_ring_buffer *to)
return 0;
/* XXX gpu semaphores are implicated in various hard hangs on SNB */
- if (INTEL_INFO(obj->base.dev)->gen < 6 || !i915_semaphores)
+ if (!intel_enable_semaphores(obj->base.dev))
return i915_gem_object_wait_rendering(obj);
idx = intel_ring_sync_index(from, to);
/* or SDVOB */
#define HDMIB 0xe1140
#define PORT_ENABLE (1 << 31)
-#define TRANSCODER_A (0)
-#define TRANSCODER_B (1 << 30)
-#define TRANSCODER(pipe) ((pipe) << 30)
-#define TRANSCODER_MASK (1 << 30)
+#define TRANSCODER(pipe) ((pipe) << 30)
+#define TRANSCODER_CPT(pipe) ((pipe) << 29)
+#define TRANSCODER_MASK (1 << 30)
+#define TRANSCODER_MASK_CPT (3 << 29)
#define COLOR_FORMAT_8bpc (0)
#define COLOR_FORMAT_12bpc (3 << 26)
#define SDVOB_HOTPLUG_ENABLE (1 << 23)
#define EDP_LINK_TRAIN_800_1200MV_0DB_SNB_B (0x38<<22)
#define EDP_LINK_TRAIN_VOL_EMP_MASK_SNB (0x3f<<22)
+/* IVB */
+#define EDP_LINK_TRAIN_400MV_0DB_IVB (0x24 <<22)
+#define EDP_LINK_TRAIN_400MV_3_5DB_IVB (0x2a <<22)
+#define EDP_LINK_TRAIN_400MV_6DB_IVB (0x2f <<22)
+#define EDP_LINK_TRAIN_600MV_0DB_IVB (0x30 <<22)
+#define EDP_LINK_TRAIN_600MV_3_5DB_IVB (0x36 <<22)
+#define EDP_LINK_TRAIN_800MV_0DB_IVB (0x38 <<22)
+#define EDP_LINK_TRAIN_800MV_3_5DB_IVB (0x33 <<22)
+
+/* legacy values */
+#define EDP_LINK_TRAIN_500MV_0DB_IVB (0x00 <<22)
+#define EDP_LINK_TRAIN_1000MV_0DB_IVB (0x20 <<22)
+#define EDP_LINK_TRAIN_500MV_3_5DB_IVB (0x02 <<22)
+#define EDP_LINK_TRAIN_1000MV_3_5DB_IVB (0x22 <<22)
+#define EDP_LINK_TRAIN_1000MV_6DB_IVB (0x23 <<22)
+
+#define EDP_LINK_TRAIN_VOL_EMP_MASK_IVB (0x3f<<22)
+
#define FORCEWAKE 0xA18C
#define FORCEWAKE_ACK 0x130090
+#define FORCEWAKE_MT 0xa188 /* multi-threaded */
+#define FORCEWAKE_MT_ACK 0x130040
+#define ECOBUS 0xa180
+#define FORCEWAKE_MT_ENABLE (1<<5)
#define GT_FIFO_FREE_ENTRIES 0x120008
#define GT_FIFO_NUM_RESERVED_ENTRIES 20
#include "i915_drv.h"
#include "i915_trace.h"
#include "drm_dp_helper.h"
-
#include "drm_crtc_helper.h"
+#include <linux/dma_remapping.h>
#define HAS_eDP (intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))
/**
* intel_choose_pipe_bpp_dither - figure out what color depth the pipe should send
* @crtc: CRTC structure
+ * @mode: requested mode
*
* A pipe may be connected to one or more outputs. Based on the depth of the
* attached framebuffer, choose a good color depth to use on the pipe.
* HDMI supports only 8bpc or 12bpc, so clamp to 8bpc with dither for 10bpc
* Displays may support a restricted set as well, check EDID and clamp as
* appropriate.
+ * DP may want to dither down to 6bpc to fit larger modes
*
* RETURNS:
* Dithering requirement (i.e. false if display bpc and pipe bpc match,
* true if they don't match).
*/
static bool intel_choose_pipe_bpp_dither(struct drm_crtc *crtc,
- unsigned int *pipe_bpp)
+ unsigned int *pipe_bpp,
+ struct drm_display_mode *mode)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
}
}
+ if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
+ DRM_DEBUG_KMS("Dithering DP to 6bpc\n");
+ display_bpc = 6;
+ }
+
/*
* We could just drive the pipe at the highest bpc all the time and
* enable dithering as needed, but that costs bandwidth. So choose
pipeconf &= ~PIPECONF_DOUBLE_WIDE;
}
+ /* default to 8bpc */
+ pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN);
+ if (is_dp) {
+ if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
+ pipeconf |= PIPECONF_BPP_6 |
+ PIPECONF_DITHER_EN |
+ PIPECONF_DITHER_TYPE_SP;
+ }
+ }
+
dpll |= DPLL_VCO_ENABLE;
DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
/* determine panel color depth */
temp = I915_READ(PIPECONF(pipe));
temp &= ~PIPE_BPC_MASK;
- dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp);
+ dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode);
switch (pipe_bpp) {
case 18:
temp |= PIPE_6BPC;
work->old_fb_obj = intel_fb->obj;
INIT_WORK(&work->work, intel_unpin_work_fn);
+ ret = drm_vblank_get(dev, intel_crtc->pipe);
+ if (ret)
+ goto free_work;
+
/* We borrow the event spin lock for protecting unpin_work */
spin_lock_irqsave(&dev->event_lock, flags);
if (intel_crtc->unpin_work) {
spin_unlock_irqrestore(&dev->event_lock, flags);
kfree(work);
+ drm_vblank_put(dev, intel_crtc->pipe);
DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
return -EBUSY;
crtc->fb = fb;
- ret = drm_vblank_get(dev, intel_crtc->pipe);
- if (ret)
- goto cleanup_objs;
-
work->pending_flip_obj = obj;
work->enable_stall_check = true;
cleanup_pending:
atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
-cleanup_objs:
drm_gem_object_unreference(&work->old_fb_obj->base);
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
intel_crtc->unpin_work = NULL;
spin_unlock_irqrestore(&dev->event_lock, flags);
+ drm_vblank_put(dev, intel_crtc->pipe);
+free_work:
kfree(work);
return ret;
dev_priv->corr = (lcfuse & LCFUSE_HIV_MASK);
}
+static bool intel_enable_rc6(struct drm_device *dev)
+{
+ /*
+ * Respect the kernel parameter if it is set
+ */
+ if (i915_enable_rc6 >= 0)
+ return i915_enable_rc6;
+
+ /*
+ * Disable RC6 on Ironlake
+ */
+ if (INTEL_INFO(dev)->gen == 5)
+ return 0;
+
+ /*
+ * Enable rc6 on Sandybridge if DMA remapping is disabled
+ */
+ if (INTEL_INFO(dev)->gen == 6) {
+ DRM_DEBUG_DRIVER("Sandybridge: intel_iommu_enabled %s -- RC6 %sabled\n",
+ intel_iommu_enabled ? "true" : "false",
+ !intel_iommu_enabled ? "en" : "dis");
+ return !intel_iommu_enabled;
+ }
+ DRM_DEBUG_DRIVER("RC6 enabled\n");
+ return 1;
+}
+
void gen6_enable_rps(struct drm_i915_private *dev_priv)
{
u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
- if (i915_enable_rc6)
+ if (intel_enable_rc6(dev_priv->dev))
rc6_mask = GEN6_RC_CTL_RC6p_ENABLE |
GEN6_RC_CTL_RC6_ENABLE;
/* rc6 disabled by default due to repeated reports of hanging during
* boot and resume.
*/
- if (!i915_enable_rc6)
+ if (!intel_enable_rc6(dev))
return;
mutex_lock(&dev->struct_mutex);
/* For FIFO watermark updates */
if (HAS_PCH_SPLIT(dev)) {
+ dev_priv->display.force_wake_get = __gen6_gt_force_wake_get;
+ dev_priv->display.force_wake_put = __gen6_gt_force_wake_put;
+
+ /* IVB configs may use multi-threaded forcewake */
+ if (IS_IVYBRIDGE(dev)) {
+ u32 ecobus;
+
+ mutex_lock(&dev->struct_mutex);
+ __gen6_gt_force_wake_mt_get(dev_priv);
+ ecobus = I915_READ(ECOBUS);
+ __gen6_gt_force_wake_mt_put(dev_priv);
+ mutex_unlock(&dev->struct_mutex);
+
+ if (ecobus & FORCEWAKE_MT_ENABLE) {
+ DRM_DEBUG_KMS("Using MT version of forcewake\n");
+ dev_priv->display.force_wake_get =
+ __gen6_gt_force_wake_mt_get;
+ dev_priv->display.force_wake_put =
+ __gen6_gt_force_wake_mt_put;
+ }
+ }
+
if (HAS_PCH_IBX(dev))
dev_priv->display.init_pch_clock_gating = ibx_init_clock_gating;
else if (HAS_PCH_CPT(dev))
*/
static int
-intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock)
+intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock, int check_bpp)
{
struct drm_crtc *crtc = intel_dp->base.base.crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int bpp = 24;
- if (intel_crtc)
+ if (check_bpp)
+ bpp = check_bpp;
+ else if (intel_crtc)
bpp = intel_crtc->bpp;
return (pixel_clock * bpp + 9) / 10;
struct intel_dp *intel_dp = intel_attached_dp(connector);
int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp));
int max_lanes = intel_dp_max_lane_count(intel_dp);
+ int max_rate, mode_rate;
if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
if (mode->hdisplay > intel_dp->panel_fixed_mode->hdisplay)
return MODE_PANEL;
}
- if (intel_dp_link_required(intel_dp, mode->clock)
- > intel_dp_max_data_rate(max_link_clock, max_lanes))
- return MODE_CLOCK_HIGH;
+ mode_rate = intel_dp_link_required(intel_dp, mode->clock, 0);
+ max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes);
+
+ if (mode_rate > max_rate) {
+ mode_rate = intel_dp_link_required(intel_dp,
+ mode->clock, 18);
+ if (mode_rate > max_rate)
+ return MODE_CLOCK_HIGH;
+ else
+ mode->private_flags |= INTEL_MODE_DP_FORCE_6BPC;
+ }
if (mode->clock < 10000)
return MODE_CLOCK_LOW;
* clock divider.
*/
if (is_cpu_edp(intel_dp)) {
- if (IS_GEN6(dev))
- aux_clock_divider = 200; /* SNB eDP input clock at 400Mhz */
+ if (IS_GEN6(dev) || IS_GEN7(dev))
+ aux_clock_divider = 200; /* SNB & IVB eDP input clock at 400Mhz */
else
aux_clock_divider = 225; /* eDP input clock at 450Mhz */
} else if (HAS_PCH_SPLIT(dev))
int lane_count, clock;
int max_lane_count = intel_dp_max_lane_count(intel_dp);
int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0;
+ int bpp = mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 0;
static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
for (clock = 0; clock <= max_clock; clock++) {
int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count);
- if (intel_dp_link_required(intel_dp, mode->clock)
+ if (intel_dp_link_required(intel_dp, mode->clock, bpp)
<= link_avail) {
intel_dp->link_bw = bws[clock];
intel_dp->lane_count = lane_count;
}
/*
- * There are three kinds of DP registers:
+ * There are four kinds of DP registers:
*
* IBX PCH
- * CPU
+ * SNB CPU
+ * IVB CPU
* CPT PCH
*
* IBX PCH and CPU are the same for almost everything,
/* Split out the IBX/CPU vs CPT settings */
- if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) {
+ if (is_cpu_edp(intel_dp) && IS_GEN7(dev)) {
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+ intel_dp->DP |= DP_SYNC_HS_HIGH;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+ intel_dp->DP |= DP_SYNC_VS_HIGH;
+ intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT;
+
+ if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN)
+ intel_dp->DP |= DP_ENHANCED_FRAMING;
+
+ intel_dp->DP |= intel_crtc->pipe << 29;
+
+ /* don't miss out required setting for eDP */
+ intel_dp->DP |= DP_PLL_ENABLE;
+ if (adjusted_mode->clock < 200000)
+ intel_dp->DP |= DP_PLL_FREQ_160MHZ;
+ else
+ intel_dp->DP |= DP_PLL_FREQ_270MHZ;
+ } else if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) {
intel_dp->DP |= intel_dp->color_range;
if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
* These are source-specific values; current Intel hardware supports
* a maximum voltage of 800mV and a maximum pre-emphasis of 6dB
*/
-#define I830_DP_VOLTAGE_MAX DP_TRAIN_VOLTAGE_SWING_800
-#define I830_DP_VOLTAGE_MAX_CPT DP_TRAIN_VOLTAGE_SWING_1200
static uint8_t
-intel_dp_pre_emphasis_max(uint8_t voltage_swing)
+intel_dp_voltage_max(struct intel_dp *intel_dp)
{
- switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
- case DP_TRAIN_VOLTAGE_SWING_400:
- return DP_TRAIN_PRE_EMPHASIS_6;
- case DP_TRAIN_VOLTAGE_SWING_600:
- return DP_TRAIN_PRE_EMPHASIS_6;
- case DP_TRAIN_VOLTAGE_SWING_800:
- return DP_TRAIN_PRE_EMPHASIS_3_5;
- case DP_TRAIN_VOLTAGE_SWING_1200:
- default:
- return DP_TRAIN_PRE_EMPHASIS_0;
+ struct drm_device *dev = intel_dp->base.base.dev;
+
+ if (IS_GEN7(dev) && is_cpu_edp(intel_dp))
+ return DP_TRAIN_VOLTAGE_SWING_800;
+ else if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+ return DP_TRAIN_VOLTAGE_SWING_1200;
+ else
+ return DP_TRAIN_VOLTAGE_SWING_800;
+}
+
+static uint8_t
+intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing)
+{
+ struct drm_device *dev = intel_dp->base.base.dev;
+
+ if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) {
+ switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
+ case DP_TRAIN_VOLTAGE_SWING_400:
+ return DP_TRAIN_PRE_EMPHASIS_6;
+ case DP_TRAIN_VOLTAGE_SWING_600:
+ case DP_TRAIN_VOLTAGE_SWING_800:
+ return DP_TRAIN_PRE_EMPHASIS_3_5;
+ default:
+ return DP_TRAIN_PRE_EMPHASIS_0;
+ }
+ } else {
+ switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
+ case DP_TRAIN_VOLTAGE_SWING_400:
+ return DP_TRAIN_PRE_EMPHASIS_6;
+ case DP_TRAIN_VOLTAGE_SWING_600:
+ return DP_TRAIN_PRE_EMPHASIS_6;
+ case DP_TRAIN_VOLTAGE_SWING_800:
+ return DP_TRAIN_PRE_EMPHASIS_3_5;
+ case DP_TRAIN_VOLTAGE_SWING_1200:
+ default:
+ return DP_TRAIN_PRE_EMPHASIS_0;
+ }
}
}
static void
intel_get_adjust_train(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE])
{
- struct drm_device *dev = intel_dp->base.base.dev;
uint8_t v = 0;
uint8_t p = 0;
int lane;
uint8_t *adjust_request = link_status + (DP_ADJUST_REQUEST_LANE0_1 - DP_LANE0_1_STATUS);
- int voltage_max;
+ uint8_t voltage_max;
+ uint8_t preemph_max;
for (lane = 0; lane < intel_dp->lane_count; lane++) {
uint8_t this_v = intel_get_adjust_request_voltage(adjust_request, lane);
p = this_p;
}
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
- voltage_max = I830_DP_VOLTAGE_MAX_CPT;
- else
- voltage_max = I830_DP_VOLTAGE_MAX;
+ voltage_max = intel_dp_voltage_max(intel_dp);
if (v >= voltage_max)
v = voltage_max | DP_TRAIN_MAX_SWING_REACHED;
- if (p >= intel_dp_pre_emphasis_max(v))
- p = intel_dp_pre_emphasis_max(v) | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
+ preemph_max = intel_dp_pre_emphasis_max(intel_dp, v);
+ if (p >= preemph_max)
+ p = preemph_max | DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
for (lane = 0; lane < 4; lane++)
intel_dp->train_set[lane] = v | p;
}
}
+/* Gen7's DP voltage swing and pre-emphasis control */
+static uint32_t
+intel_gen7_edp_signal_levels(uint8_t train_set)
+{
+ int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK |
+ DP_TRAIN_PRE_EMPHASIS_MASK);
+ switch (signal_levels) {
+ case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_0:
+ return EDP_LINK_TRAIN_400MV_0DB_IVB;
+ case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_3_5:
+ return EDP_LINK_TRAIN_400MV_3_5DB_IVB;
+ case DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_6:
+ return EDP_LINK_TRAIN_400MV_6DB_IVB;
+
+ case DP_TRAIN_VOLTAGE_SWING_600 | DP_TRAIN_PRE_EMPHASIS_0:
+ return EDP_LINK_TRAIN_600MV_0DB_IVB;
+ case DP_TRAIN_VOLTAGE_SWING_600 | DP_TRAIN_PRE_EMPHASIS_3_5:
+ return EDP_LINK_TRAIN_600MV_3_5DB_IVB;
+
+ case DP_TRAIN_VOLTAGE_SWING_800 | DP_TRAIN_PRE_EMPHASIS_0:
+ return EDP_LINK_TRAIN_800MV_0DB_IVB;
+ case DP_TRAIN_VOLTAGE_SWING_800 | DP_TRAIN_PRE_EMPHASIS_3_5:
+ return EDP_LINK_TRAIN_800MV_3_5DB_IVB;
+
+ default:
+ DRM_DEBUG_KMS("Unsupported voltage swing/pre-emphasis level:"
+ "0x%x\n", signal_levels);
+ return EDP_LINK_TRAIN_500MV_0DB_IVB;
+ }
+}
+
static uint8_t
intel_get_lane_status(uint8_t link_status[DP_LINK_STATUS_SIZE],
int lane)
DP_LINK_CONFIGURATION_SIZE);
DP |= DP_PORT_EN;
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+
+ if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
DP &= ~DP_LINK_TRAIN_MASK_CPT;
else
DP &= ~DP_LINK_TRAIN_MASK;
uint8_t link_status[DP_LINK_STATUS_SIZE];
uint32_t signal_levels;
- if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
+
+ if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) {
+ signal_levels = intel_gen7_edp_signal_levels(intel_dp->train_set[0]);
+ DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_IVB) | signal_levels;
+ } else if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]);
DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels;
} else {
DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
}
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+ if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
reg = DP | DP_LINK_TRAIN_PAT_1_CPT;
else
reg = DP | DP_LINK_TRAIN_PAT_1;
break;
}
- if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
+ if (IS_GEN7(dev) && is_cpu_edp(intel_dp)) {
+ signal_levels = intel_gen7_edp_signal_levels(intel_dp->train_set[0]);
+ DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_IVB) | signal_levels;
+ } else if (IS_GEN6(dev) && is_cpu_edp(intel_dp)) {
signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]);
DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels;
} else {
DP = (DP & ~(DP_VOLTAGE_MASK|DP_PRE_EMPHASIS_MASK)) | signal_levels;
}
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+ if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
reg = DP | DP_LINK_TRAIN_PAT_2_CPT;
else
reg = DP | DP_LINK_TRAIN_PAT_2;
++tries;
}
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+ if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
reg = DP | DP_LINK_TRAIN_OFF_CPT;
else
reg = DP | DP_LINK_TRAIN_OFF;
udelay(100);
}
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp)) {
+ if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp))) {
DP &= ~DP_LINK_TRAIN_MASK_CPT;
I915_WRITE(intel_dp->output_reg, DP | DP_LINK_TRAIN_PAT_IDLE_CPT);
} else {
msleep(17);
if (is_edp(intel_dp)) {
- if (HAS_PCH_CPT(dev) && !is_cpu_edp(intel_dp))
+ if (HAS_PCH_CPT(dev) && (IS_GEN7(dev) || !is_cpu_edp(intel_dp)))
DP |= DP_LINK_TRAIN_OFF_CPT;
else
DP |= DP_LINK_TRAIN_OFF;
/* drm_display_mode->private_flags */
#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
+#define INTEL_MODE_DP_FORCE_6BPC (0x10)
static inline void
intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"),
},
},
+ {
+ .callback = intel_no_lvds_dmi_callback,
+ .ident = "Asus AT5NM10T-I",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+ DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"),
+ },
+ },
{ } /* terminating entry */
};
if (HAS_PCH_SPLIT(dev)) {
max >>= 16;
} else {
- if (IS_PINEVIEW(dev)) {
+ if (INTEL_INFO(dev)->gen < 4)
max >>= 17;
- } else {
+ else
max >>= 16;
- if (INTEL_INFO(dev)->gen < 4)
- max &= ~1;
- }
if (is_backlight_combination_mode(dev))
max *= 0xff;
val = I915_READ(BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
} else {
val = I915_READ(BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
- if (IS_PINEVIEW(dev))
+ if (INTEL_INFO(dev)->gen < 4)
val >>= 1;
if (is_backlight_combination_mode(dev)) {
u8 lbpc;
- val &= ~1;
pci_read_config_byte(dev->pdev, PCI_LBPC, &lbpc);
val *= lbpc;
}
}
tmp = I915_READ(BLC_PWM_CTL);
- if (IS_PINEVIEW(dev)) {
- tmp &= ~(BACKLIGHT_DUTY_CYCLE_MASK - 1);
+ if (INTEL_INFO(dev)->gen < 4)
level <<= 1;
- } else
- tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK;
+ tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK;
I915_WRITE(BLC_PWM_CTL, tmp | level);
}
#define IS_TMDS(c) (c->output_flag & SDVO_TMDS_MASK)
#define IS_LVDS(c) (c->output_flag & SDVO_LVDS_MASK)
#define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
+#define IS_DIGITAL(c) (c->output_flag & (SDVO_TMDS_MASK | SDVO_LVDS_MASK))
static const char *tv_format_names[] = {
}
sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
}
- if (intel_crtc->pipe == 1)
- sdvox |= SDVO_PIPE_B_SELECT;
+
+ if (INTEL_PCH_TYPE(dev) >= PCH_CPT)
+ sdvox |= TRANSCODER_CPT(intel_crtc->pipe);
+ else
+ sdvox |= TRANSCODER(intel_crtc->pipe);
+
if (intel_sdvo->has_hdmi_audio)
sdvox |= SDVO_AUDIO_ENABLE;
return status;
}
+static bool
+intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
+ struct edid *edid)
+{
+ bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
+ bool connector_is_digital = !!IS_DIGITAL(sdvo);
+
+ DRM_DEBUG_KMS("connector_is_digital? %d, monitor_is_digital? %d\n",
+ connector_is_digital, monitor_is_digital);
+ return connector_is_digital == monitor_is_digital;
+}
+
static enum drm_connector_status
intel_sdvo_detect(struct drm_connector *connector, bool force)
{
if (edid == NULL)
edid = intel_sdvo_get_analog_edid(connector);
if (edid != NULL) {
- if (edid->input & DRM_EDID_INPUT_DIGITAL)
- ret = connector_status_disconnected;
- else
+ if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
+ edid))
ret = connector_status_connected;
+ else
+ ret = connector_status_disconnected;
+
connector->display_info.raw_edid = NULL;
kfree(edid);
} else
edid = intel_sdvo_get_analog_edid(connector);
if (edid != NULL) {
- struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
- bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
- bool connector_is_digital = !!IS_TMDS(intel_sdvo_connector);
-
- if (connector_is_digital == monitor_is_digital) {
+ if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
+ edid)) {
drm_mode_connector_update_edid_property(connector, edid);
drm_add_edid_modes(connector, edid);
}
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_TRAVIS:
case ENCODER_OBJECT_ID_NUTMEG:
- return true;
+ return radeon_encoder->encoder_id;
default:
- return false;
+ return ENCODER_OBJECT_ID_NONE;
}
}
-
- return false;
+ return ENCODER_OBJECT_ID_NONE;
}
void radeon_panel_mode_fixup(struct drm_encoder *encoder,
goto out_clips;
}
- clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
goto out_clips;
}
- clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
+ clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
{
struct jz4740_hwmon *hwmon = dev_get_drvdata(dev);
struct completion *completion = &hwmon->read_completion;
- unsigned long t;
+ long t;
unsigned long val;
int ret;
return 0;
}
-struct platform_driver jz4740_hwmon_driver = {
+static struct platform_driver jz4740_hwmon_driver = {
.probe = jz4740_hwmon_probe,
.remove = __devexit_p(jz4740_hwmon_remove),
.driver = {
int dmar_disabled = 1;
#endif /*CONFIG_INTEL_IOMMU_DEFAULT_ON*/
+int intel_iommu_enabled = 0;
+EXPORT_SYMBOL_GPL(intel_iommu_enabled);
+
static int dmar_map_gfx = 1;
static int dmar_forcedac;
static int intel_iommu_strict;
bus_register_notifier(&pci_bus_type, &device_nb);
+ intel_iommu_enabled = 1;
+
return 0;
}
*/
int i;
+ spin_lock_irq(&bitmap->lock);
for (i = 0; i < bitmap->file_pages; i++)
set_page_attr(bitmap, bitmap->filemap[i],
BITMAP_PAGE_NEEDWRITE);
bitmap->allclean = 0;
+ spin_unlock_irq(&bitmap->lock);
}
static void bitmap_count_page(struct bitmap *bitmap, sector_t offset, int inc)
for (chunk = s; chunk <= e; chunk++) {
sector_t sec = (sector_t)chunk << CHUNK_BLOCK_SHIFT(bitmap);
bitmap_set_memory_bits(bitmap, sec, 1);
+ spin_lock_irq(&bitmap->lock);
bitmap_file_set_bit(bitmap, sec);
+ spin_unlock_irq(&bitmap->lock);
if (sec < bitmap->mddev->recovery_cp)
/* We are asserting that the array is dirty,
* so move the recovery_cp address back so
mddev->ctime == 0 && !mddev->hold_active) {
/* Array is not configured at all, and not held active,
* so destroy it */
- list_del(&mddev->all_mddevs);
+ list_del_init(&mddev->all_mddevs);
bs = mddev->bio_set;
mddev->bio_set = NULL;
if (mddev->gendisk) {
sep = ",";
}
if (test_bit(Blocked, &rdev->flags) ||
- rdev->badblocks.unacked_exist) {
+ (rdev->badblocks.unacked_exist
+ && !test_bit(Faulty, &rdev->flags))) {
len += sprintf(page+len, "%sblocked", sep);
sep = ",";
}
if (err)
return err;
else {
+ if (mddev->hold_active == UNTIL_IOCTL)
+ mddev->hold_active = 0;
sysfs_notify_dirent_safe(mddev->sysfs_state);
return len;
}
if (!entry->show)
return -EIO;
+ spin_lock(&all_mddevs_lock);
+ if (list_empty(&mddev->all_mddevs)) {
+ spin_unlock(&all_mddevs_lock);
+ return -EBUSY;
+ }
+ mddev_get(mddev);
+ spin_unlock(&all_mddevs_lock);
+
rv = mddev_lock(mddev);
if (!rv) {
rv = entry->show(mddev, page);
mddev_unlock(mddev);
}
+ mddev_put(mddev);
return rv;
}
return -EIO;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
+ spin_lock(&all_mddevs_lock);
+ if (list_empty(&mddev->all_mddevs)) {
+ spin_unlock(&all_mddevs_lock);
+ return -EBUSY;
+ }
+ mddev_get(mddev);
+ spin_unlock(&all_mddevs_lock);
rv = mddev_lock(mddev);
- if (mddev->hold_active == UNTIL_IOCTL)
- mddev->hold_active = 0;
if (!rv) {
rv = entry->store(mddev, page, length);
mddev_unlock(mddev);
}
+ mddev_put(mddev);
return rv;
}
s + rdev->data_offset, sectors, acknowledged);
if (rv) {
/* Make sure they get written out promptly */
+ sysfs_notify_dirent_safe(rdev->sysfs_state);
set_bit(MD_CHANGE_CLEAN, &rdev->mddev->flags);
md_wakeup_thread(rdev->mddev->thread);
}
if (dev->written)
s->written++;
rdev = rcu_dereference(conf->disks[i].rdev);
+ if (rdev && test_bit(Faulty, &rdev->flags))
+ rdev = NULL;
if (rdev) {
is_bad = is_badblock(rdev, sh->sector, STRIPE_SECTORS,
&first_bad, &bad_sectors);
}
} else if (test_bit(In_sync, &rdev->flags))
set_bit(R5_Insync, &dev->flags);
- else if (!test_bit(Faulty, &rdev->flags)) {
+ else {
/* in sync if before recovery_offset */
if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset)
set_bit(R5_Insync, &dev->flags);
}
- if (test_bit(R5_WriteError, &dev->flags)) {
+ if (rdev && test_bit(R5_WriteError, &dev->flags)) {
clear_bit(R5_Insync, &dev->flags);
if (!test_bit(Faulty, &rdev->flags)) {
s->handle_bad_blocks = 1;
} else
clear_bit(R5_WriteError, &dev->flags);
}
- if (test_bit(R5_MadeGood, &dev->flags)) {
+ if (rdev && test_bit(R5_MadeGood, &dev->flags)) {
if (!test_bit(Faulty, &rdev->flags)) {
s->handle_bad_blocks = 1;
atomic_inc(&rdev->nr_pending);
MMC_QUIRK_BLK_NO_CMD23),
MMC_FIXUP("MMC32G", 0x11, CID_OEMID_ANY, add_quirk_mmc,
MMC_QUIRK_BLK_NO_CMD23),
+
+ /*
+ * Some Micron MMC cards needs longer data read timeout than
+ * indicated in CSD.
+ */
+ MMC_FIXUP(CID_NAME_ANY, 0x13, 0x200, add_quirk_mmc,
+ MMC_QUIRK_LONG_READ_TIME),
+
END_FIXUP
};
data->timeout_clks = 0;
}
}
+
+ /*
+ * Some cards require longer data read timeout than indicated in CSD.
+ * Address this by setting the read timeout to a "reasonably high"
+ * value. For the cards tested, 300ms has proven enough. If necessary,
+ * this value can be increased if other problematic cards require this.
+ */
+ if (mmc_card_long_read_time(card) && data->flags & MMC_DATA_READ) {
+ data->timeout_ns = 300000000;
+ data->timeout_clks = 0;
+ }
+
/*
* Some cards need very high timeouts if driven in SPI mode.
* The worst observed timeout was 900ms after writing a
mmc_host_clk_release(host);
}
+static void mmc_poweroff_notify(struct mmc_host *host)
+{
+ struct mmc_card *card;
+ unsigned int timeout;
+ unsigned int notify_type = EXT_CSD_NO_POWER_NOTIFICATION;
+ int err = 0;
+
+ card = host->card;
+
+ /*
+ * Send power notify command only if card
+ * is mmc and notify state is powered ON
+ */
+ if (card && mmc_card_mmc(card) &&
+ (card->poweroff_notify_state == MMC_POWERED_ON)) {
+
+ if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) {
+ notify_type = EXT_CSD_POWER_OFF_SHORT;
+ timeout = card->ext_csd.generic_cmd6_time;
+ card->poweroff_notify_state = MMC_POWEROFF_SHORT;
+ } else {
+ notify_type = EXT_CSD_POWER_OFF_LONG;
+ timeout = card->ext_csd.power_off_longtime;
+ card->poweroff_notify_state = MMC_POWEROFF_LONG;
+ }
+
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_POWER_OFF_NOTIFICATION,
+ notify_type, timeout);
+
+ if (err && err != -EBADMSG)
+ pr_err("Device failed to respond within %d poweroff "
+ "time. Forcefully powering down the device\n",
+ timeout);
+
+ /* Set the card state to no notification after the poweroff */
+ card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
+ }
+}
+
/*
* Apply power to the MMC stack. This is a two-stage process.
* First, we enable power to the card without the clock running.
void mmc_power_off(struct mmc_host *host)
{
- struct mmc_card *card;
- unsigned int notify_type;
- unsigned int timeout;
- int err;
-
mmc_host_clk_hold(host);
- card = host->card;
host->ios.clock = 0;
host->ios.vdd = 0;
- if (card && mmc_card_mmc(card) &&
- (card->poweroff_notify_state == MMC_POWERED_ON)) {
-
- if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) {
- notify_type = EXT_CSD_POWER_OFF_SHORT;
- timeout = card->ext_csd.generic_cmd6_time;
- card->poweroff_notify_state = MMC_POWEROFF_SHORT;
- } else {
- notify_type = EXT_CSD_POWER_OFF_LONG;
- timeout = card->ext_csd.power_off_longtime;
- card->poweroff_notify_state = MMC_POWEROFF_LONG;
- }
-
- err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_POWER_OFF_NOTIFICATION,
- notify_type, timeout);
-
- if (err && err != -EBADMSG)
- pr_err("Device failed to respond within %d poweroff "
- "time. Forcefully powering down the device\n",
- timeout);
-
- /* Set the card state to no notification after the poweroff */
- card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
- }
+ mmc_poweroff_notify(host);
/*
* Reset ocr mask to be the highest possible voltage supported for
mmc_bus_get(host);
- if (host->bus_ops && !host->bus_dead && host->bus_ops->awake)
+ if (host->bus_ops && !host->bus_dead && host->bus_ops->sleep)
err = host->bus_ops->sleep(host);
mmc_bus_put(host);
* pre-claim the host.
*/
if (mmc_try_claim_host(host)) {
- if (host->bus_ops->suspend)
+ if (host->bus_ops->suspend) {
+ /*
+ * For eMMC 4.5 device send notify command
+ * before sleep, because in sleep state eMMC 4.5
+ * devices respond to only RESET and AWAKE cmd
+ */
+ mmc_poweroff_notify(host);
err = host->bus_ops->suspend(host);
+ }
+ mmc_do_release_host(host);
+
if (err == -ENOSYS || !host->bus_ops->resume) {
/*
* We simply "remove" the card in this case.
host->pm_flags = 0;
err = 0;
}
- mmc_do_release_host(host);
} else {
err = -EBUSY;
}
* set the notification byte in the ext_csd register of device
*/
if ((host->caps2 & MMC_CAP2_POWEROFF_NOTIFY) &&
- (card->poweroff_notify_state == MMC_NO_POWER_NOTIFICATION)) {
+ (card->ext_csd.rev >= 6)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_POWER_OFF_NOTIFICATION,
EXT_CSD_POWER_ON,
card->ext_csd.generic_cmd6_time);
if (err && err != -EBADMSG)
goto free_card;
- }
- if (!err)
- card->poweroff_notify_state = MMC_POWERED_ON;
+ /*
+ * The err can be -EBADMSG or 0,
+ * so check for success and update the flag
+ */
+ if (!err)
+ card->poweroff_notify_state = MMC_POWERED_ON;
+ }
/*
* Activate high speed (if supported)
"failed to config DMA channel. Falling back to PIO\n");
dma_release_channel(host->dma);
host->do_dma = 0;
+ host->dma = NULL;
}
}
host->data->sg_len,
omap_hsmmc_get_dma_dir(host, host->data));
omap_free_dma(dma_ch);
+ host->data->host_cookie = 0;
}
host->data = NULL;
}
struct mmc_data *data = mrq->data;
if (host->use_dma) {
- dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
- omap_hsmmc_get_dma_dir(host, data));
+ if (data->host_cookie)
+ dma_unmap_sg(mmc_dev(host->mmc), data->sg,
+ data->sg_len,
+ omap_hsmmc_get_dma_dir(host, data));
data->host_cookie = 0;
}
}
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/mmc/host.h>
+#include <linux/module.h>
#include <mach/cns3xxx.h>
#include "sdhci-pltfm.h"
static struct platform_driver sdhci_s3c_driver = {
.probe = sdhci_s3c_probe,
.remove = __devexit_p(sdhci_s3c_remove),
- .suspend = sdhci_s3c_suspend,
- .resume = sdhci_s3c_resume,
.driver = {
.owner = THIS_MODULE,
.name = "s3c-sdhci",
if (host->power) {
pm_runtime_put(&host->pd->dev);
host->power = false;
- if (p->down_pwr)
+ if (p->down_pwr && ios->power_mode == MMC_POWER_OFF)
p->down_pwr(host->pd);
}
host->state = STATE_IDLE;
/* start bus clock */
tmio_mmc_clk_start(host);
} else if (ios->power_mode != MMC_POWER_UP) {
- if (host->set_pwr)
+ if (host->set_pwr && ios->power_mode == MMC_POWER_OFF)
host->set_pwr(host->pdev, 0);
if ((pdata->flags & TMIO_MMC_HAS_COLD_CD) &&
pdata->power) {
goto done;
/* Re-enable the ingress interrupt. */
- enable_percpu_irq(priv->intr_id);
+ enable_percpu_irq(priv->intr_id, 0);
/* HACK: Avoid the "rotting packet" problem (see above). */
if (qup->__packet_receive_read !=
info->napi_enabled = true;
/* Enable the ingress interrupt. */
- enable_percpu_irq(priv->intr_id);
+ enable_percpu_irq(priv->intr_id, 0);
}
for (i = 0; i < sh->nr_frags; i++) {
skb_frag_t *f = &sh->frags[i];
- unsigned long pfn = page_to_pfn(f->page);
+ unsigned long pfn = page_to_pfn(skb_frag_page(f));
/* FIXME: Compute "hash_for_home" properly. */
/* ISSUE: The hypervisor checks CHIP_HAS_REV1_DMA_PACKETS(). */
/* FIXME: Hmmm. */
if (!hash_default) {
void *va = pfn_to_kaddr(pfn) + f->page_offset;
- BUG_ON(PageHighMem(f->page));
+ BUG_ON(PageHighMem(skb_frag_page(f)));
finv_buffer_remote(va, f->size, 0);
}
#include <linux/string.h>
#include <linux/slab.h>
-/* For archs that don't support NO_IRQ (such as x86), provide a dummy value */
-#ifndef NO_IRQ
-#define NO_IRQ 0
-#endif
-
/**
* irq_of_parse_and_map - Parse and map an interrupt into linux virq space
* @device: Device node of the device whose interrupt is to be mapped
struct of_irq oirq;
if (of_irq_map_one(dev, index, &oirq))
- return NO_IRQ;
+ return 0;
return irq_create_of_mapping(oirq.controller, oirq.specifier,
oirq.size);
/* Only dereference the resource if both the
* resource and the irq are valid. */
- if (r && irq != NO_IRQ) {
+ if (r && irq) {
r->start = r->end = irq;
r->flags = IORESOURCE_IRQ;
r->name = dev->full_name;
{
int nr = 0;
- while (of_irq_to_resource(dev, nr, NULL) != NO_IRQ)
+ while (of_irq_to_resource(dev, nr, NULL))
nr++;
return nr;
int i;
for (i = 0; i < nr_irqs; i++, res++)
- if (of_irq_to_resource(dev, i, res) == NO_IRQ)
+ if (!of_irq_to_resource(dev, i, res))
break;
return i;
static int ptp_clock_getres(struct posix_clock *pc, struct timespec *tp)
{
- return 1; /* always round timer functions to one nanosecond */
+ tp->tv_sec = 0;
+ tp->tv_nsec = 1;
+ return 0;
}
static int ptp_clock_settime(struct posix_clock *pc, const struct timespec *tp)
INIT_WORK(&priv->idb_work, tsi721_db_dpc);
/* Allocate buffer for inbound doorbells queue */
- priv->idb_base = dma_alloc_coherent(&priv->pdev->dev,
+ priv->idb_base = dma_zalloc_coherent(&priv->pdev->dev,
IDB_QSIZE * TSI721_IDB_ENTRY_SIZE,
&priv->idb_dma, GFP_KERNEL);
if (!priv->idb_base)
return -ENOMEM;
- memset(priv->idb_base, 0, IDB_QSIZE * TSI721_IDB_ENTRY_SIZE);
-
dev_dbg(&priv->pdev->dev, "Allocated IDB buffer @ %p (phys = %llx)\n",
priv->idb_base, (unsigned long long)priv->idb_dma);
*/
/* Allocate space for DMA descriptors */
- bd_ptr = dma_alloc_coherent(&priv->pdev->dev,
+ bd_ptr = dma_zalloc_coherent(&priv->pdev->dev,
bd_num * sizeof(struct tsi721_dma_desc),
&bd_phys, GFP_KERNEL);
if (!bd_ptr)
priv->bdma[chnum].bd_phys = bd_phys;
priv->bdma[chnum].bd_base = bd_ptr;
- memset(bd_ptr, 0, bd_num * sizeof(struct tsi721_dma_desc));
-
dev_dbg(&priv->pdev->dev, "DMA descriptors @ %p (phys = %llx)\n",
bd_ptr, (unsigned long long)bd_phys);
sts_size = (bd_num >= TSI721_DMA_MINSTSSZ) ?
bd_num : TSI721_DMA_MINSTSSZ;
sts_size = roundup_pow_of_two(sts_size);
- sts_ptr = dma_alloc_coherent(&priv->pdev->dev,
+ sts_ptr = dma_zalloc_coherent(&priv->pdev->dev,
sts_size * sizeof(struct tsi721_dma_sts),
&sts_phys, GFP_KERNEL);
if (!sts_ptr) {
priv->bdma[chnum].sts_base = sts_ptr;
priv->bdma[chnum].sts_size = sts_size;
- memset(sts_ptr, 0, sts_size);
-
dev_dbg(&priv->pdev->dev,
"desc status FIFO @ %p (phys = %llx) size=0x%x\n",
sts_ptr, (unsigned long long)sts_phys, sts_size);
/* Outbound message descriptor status FIFO allocation */
priv->omsg_ring[mbox].sts_size = roundup_pow_of_two(entries + 1);
- priv->omsg_ring[mbox].sts_base = dma_alloc_coherent(&priv->pdev->dev,
+ priv->omsg_ring[mbox].sts_base = dma_zalloc_coherent(&priv->pdev->dev,
priv->omsg_ring[mbox].sts_size *
sizeof(struct tsi721_dma_sts),
&priv->omsg_ring[mbox].sts_phys, GFP_KERNEL);
goto out_desc;
}
- memset(priv->omsg_ring[mbox].sts_base, 0,
- entries * sizeof(struct tsi721_dma_sts));
-
/*
* Configure Outbound Messaging Engine
*/
INIT_LIST_HEAD(&mport->dbells);
rio_init_dbell_res(&mport->riores[RIO_DOORBELL_RESOURCE], 0, 0xffff);
- rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 0);
- rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 0);
+ rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 3);
+ rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 3);
strcpy(mport->name, "Tsi721 mport");
/* Hook up interrupt handler */
const struct pci_device_id *id)
{
struct tsi721_device *priv;
- int i;
+ int i, cap;
int err;
u32 regval;
dev_info(&pdev->dev, "Unable to set consistent DMA mask\n");
}
- /* Clear "no snoop" and "relaxed ordering" bits. */
- pci_read_config_dword(pdev, 0x40 + PCI_EXP_DEVCTL, ®val);
- regval &= ~(PCI_EXP_DEVCTL_RELAX_EN | PCI_EXP_DEVCTL_NOSNOOP_EN);
- pci_write_config_dword(pdev, 0x40 + PCI_EXP_DEVCTL, regval);
+ cap = pci_pcie_cap(pdev);
+ BUG_ON(cap == 0);
+
+ /* Clear "no snoop" and "relaxed ordering" bits, use default MRRS. */
+ pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL, ®val);
+ regval &= ~(PCI_EXP_DEVCTL_READRQ | PCI_EXP_DEVCTL_RELAX_EN |
+ PCI_EXP_DEVCTL_NOSNOOP_EN);
+ regval |= 0x2 << MAX_READ_REQUEST_SZ_SHIFT;
+ pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL, regval);
+
+ /* Adjust PCIe completion timeout. */
+ pci_read_config_dword(pdev, cap + PCI_EXP_DEVCTL2, ®val);
+ regval &= ~(0x0f);
+ pci_write_config_dword(pdev, cap + PCI_EXP_DEVCTL2, regval | 0x2);
/*
* FIXUP: correct offsets of MSI-X tables in the MSI-X Capability Block
#define TSI721_MSIXPBA_OFFSET 0x2a000
#define TSI721_PCIECFG_EPCTL 0x400
+#define MAX_READ_REQUEST_SZ_SHIFT 12
+
/*
* Event Management Registers
*/
void __iomem *base = s3c_rtc_base;
int year = tm->tm_year - 100;
- clk_enable(rtc_clk);
pr_debug("set time %04d.%02d.%02d %02d:%02d:%02d\n",
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
return -EINVAL;
}
+ clk_enable(rtc_clk);
writeb(bin2bcd(tm->tm_sec), base + S3C2410_RTCSEC);
writeb(bin2bcd(tm->tm_min), base + S3C2410_RTCMIN);
writeb(bin2bcd(tm->tm_hour), base + S3C2410_RTCHOUR);
int ret = 0;
while (len > 0) {
- int err = bbc_i2c_writeb(client, *buf, off);
-
- if (err < 0) {
- ret = err;
+ ret = bbc_i2c_writeb(client, *buf, off);
+ if (ret < 0)
break;
- }
-
len--;
buf++;
off++;
int ret = 0;
while (len > 0) {
- int err = bbc_i2c_readb(client, buf, off);
- if (err < 0) {
- ret = err;
+ ret = bbc_i2c_readb(client, buf, off);
+ if (ret < 0)
break;
- }
len--;
buf++;
off++;
.remove = __devexit_p(bbc_i2c_remove),
};
-static int __init bbc_i2c_init(void)
-{
- return platform_driver_register(&bbc_i2c_driver);
-}
-
-static void __exit bbc_i2c_exit(void)
-{
- platform_driver_unregister(&bbc_i2c_driver);
-}
-
-module_init(bbc_i2c_init);
-module_exit(bbc_i2c_exit);
+module_platform_driver(bbc_i2c_driver);
MODULE_LICENSE("GPL");
.remove = __devexit_p(d7s_remove),
};
-static int __init d7s_init(void)
-{
- return platform_driver_register(&d7s_driver);
-}
-
-static void __exit d7s_exit(void)
-{
- platform_driver_unregister(&d7s_driver);
-}
-
-module_init(d7s_init);
-module_exit(d7s_exit);
+module_platform_driver(d7s_driver);
.remove = __devexit_p(envctrl_remove),
};
-static int __init envctrl_init(void)
-{
- return platform_driver_register(&envctrl_driver);
-}
-
-static void __exit envctrl_exit(void)
-{
- platform_driver_unregister(&envctrl_driver);
-}
+module_platform_driver(envctrl_driver);
-module_init(envctrl_init);
-module_exit(envctrl_exit);
MODULE_LICENSE("GPL");
.remove = __devexit_p(flash_remove),
};
-static int __init flash_init(void)
-{
- return platform_driver_register(&flash_driver);
-}
-
-static void __exit flash_cleanup(void)
-{
- platform_driver_unregister(&flash_driver);
-}
+module_platform_driver(flash_driver);
-module_init(flash_init);
-module_exit(flash_cleanup);
MODULE_LICENSE("GPL");
};
-static int __init uctrl_init(void)
-{
- return platform_driver_register(&uctrl_driver);
-}
-
-static void __exit uctrl_exit(void)
-{
- platform_driver_unregister(&uctrl_driver);
-}
+module_platform_driver(uctrl_driver);
-module_init(uctrl_init);
-module_exit(uctrl_exit);
MODULE_LICENSE("GPL");
depends on FSL_SOC
config SPI_FSL_SPI
- tristate "Freescale SPI controller"
+ bool "Freescale SPI controller"
depends on FSL_SOC
select SPI_FSL_LIB
help
MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
config SPI_FSL_ESPI
- tristate "Freescale eSPI controller"
+ bool "Freescale eSPI controller"
depends on FSL_SOC
select SPI_FSL_LIB
help
*/
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
spi_bitbang_cleanup(spi);
}
-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
+static int __devinit spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
{
int value;
return value;
}
-static int __init
+static int __devinit
spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
u16 *res_flags)
{
*
*/
+#include <linux/module.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
{USB_DEVICE(0x0DF6, 0x0045)},
{USB_DEVICE(0x0DF6, 0x0059)}, /* 11n mode disable */
{USB_DEVICE(0x0DF6, 0x004B)},
+ {USB_DEVICE(0x0DF6, 0x005D)},
{USB_DEVICE(0x0DF6, 0x0063)},
/* Sweex */
{USB_DEVICE(0x177F, 0x0154)},
/* Bridge GPT id (1 - 4), DM Timer id (5 - 8) */
#define DMT_ID(id) ((id) + 4)
+#define DM_TIMER_CLOCKS 4
/* Bridge MCBSP id (6 - 10), OMAP Mcbsp id (0 - 4) */
#define MCBSP_ID(id) ((id) - 6)
*/
void dsp_clk_exit(void)
{
+ int i;
+
dsp_clock_disable_all(dsp_clocks);
+ for (i = 0; i < DM_TIMER_CLOCKS; i++)
+ omap_dm_timer_free(timer[i]);
+
clk_put(iva2_clk);
clk_put(ssi.sst_fck);
clk_put(ssi.ssr_fck);
void dsp_clk_init(void)
{
static struct platform_device dspbridge_device;
+ int i, id;
dspbridge_device.dev.bus = &platform_bus_type;
+ for (i = 0, id = 5; i < DM_TIMER_CLOCKS; i++, id++)
+ timer[i] = omap_dm_timer_request_specific(id);
+
iva2_clk = clk_get(&dspbridge_device.dev, "iva2_ck");
if (IS_ERR(iva2_clk))
dev_err(bridge, "failed to get iva2 clock %p\n", iva2_clk);
clk_enable(iva2_clk);
break;
case GPT_CLK:
- timer[clk_id - 1] =
- omap_dm_timer_request_specific(DMT_ID(clk_id));
+ status = omap_dm_timer_start(timer[clk_id - 1]);
break;
#ifdef CONFIG_OMAP_MCBSP
case MCBSP_CLK:
clk_disable(iva2_clk);
break;
case GPT_CLK:
- omap_dm_timer_free(timer[clk_id - 1]);
+ status = omap_dm_timer_stop(timer[clk_id - 1]);
break;
#ifdef CONFIG_OMAP_MCBSP
case MCBSP_CLK:
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
-
-#ifdef MODULE
#include <linux/module.h>
-#endif
-
#include <linux/device.h>
#include <linux/init.h>
#include <linux/moduleparam.h>
hdr = (struct iscsi_reject *) cmd->pdu;
hdr->reason = reason;
- cmd->buf_ptr = kzalloc(ISCSI_HDR_LEN, GFP_KERNEL);
+ cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL);
if (!cmd->buf_ptr) {
pr_err("Unable to allocate memory for cmd->buf_ptr\n");
iscsit_release_cmd(cmd);
return -1;
}
- memcpy(cmd->buf_ptr, buf, ISCSI_HDR_LEN);
spin_lock_bh(&conn->cmd_lock);
list_add_tail(&cmd->i_list, &conn->conn_cmd_list);
hdr = (struct iscsi_reject *) cmd->pdu;
hdr->reason = reason;
- cmd->buf_ptr = kzalloc(ISCSI_HDR_LEN, GFP_KERNEL);
+ cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL);
if (!cmd->buf_ptr) {
pr_err("Unable to allocate memory for cmd->buf_ptr\n");
iscsit_release_cmd(cmd);
return -1;
}
- memcpy(cmd->buf_ptr, buf, ISCSI_HDR_LEN);
if (add_to_conn) {
spin_lock_bh(&conn->cmd_lock);
" non-existent or non-exported iSCSI LUN:"
" 0x%016Lx\n", get_unaligned_le64(&hdr->lun));
}
- if (ret == PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES)
- return iscsit_add_reject_from_cmd(
- ISCSI_REASON_BOOKMARK_NO_RESOURCES,
- 1, 1, buf, cmd);
-
send_check_condition = 1;
goto attach_cmd;
}
*/
send_check_condition = 1;
} else {
+ cmd->data_length = cmd->se_cmd.data_length;
+
if (iscsit_decide_list_to_build(cmd, payload_length) < 0)
return iscsit_add_reject_from_cmd(
ISCSI_REASON_BOOKMARK_NO_RESOURCES,
* the backend memory allocation.
*/
ret = transport_generic_new_cmd(&cmd->se_cmd);
- if ((ret < 0) || (cmd->se_cmd.se_cmd_flags & SCF_SE_CMD_FAILED)) {
+ if (ret < 0) {
immed_ret = IMMEDIATE_DATA_NORMAL_OPERATION;
dump_immediate_data = 1;
goto after_immediate_data;
spin_lock_irqsave(&se_cmd->t_state_lock, flags);
if (!(se_cmd->se_cmd_flags & SCF_SUPPORTED_SAM_OPCODE) ||
- (se_cmd->se_cmd_flags & SCF_SE_CMD_FAILED))
+ (se_cmd->se_cmd_flags & SCF_SCSI_CDB_EXCEPTION))
dump_unsolicited_data = 1;
spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
if (hdr->flags & ISCSI_FLAG_DATA_STATUS) {
if (cmd->se_cmd.se_cmd_flags & SCF_OVERFLOW_BIT) {
hdr->flags |= ISCSI_FLAG_DATA_OVERFLOW;
- hdr->residual_count = cpu_to_be32(cmd->residual_count);
+ hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
} else if (cmd->se_cmd.se_cmd_flags & SCF_UNDERFLOW_BIT) {
hdr->flags |= ISCSI_FLAG_DATA_UNDERFLOW;
- hdr->residual_count = cpu_to_be32(cmd->residual_count);
+ hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
}
}
hton24(hdr->dlength, datain.length);
hdr->flags |= ISCSI_FLAG_CMD_FINAL;
if (cmd->se_cmd.se_cmd_flags & SCF_OVERFLOW_BIT) {
hdr->flags |= ISCSI_FLAG_CMD_OVERFLOW;
- hdr->residual_count = cpu_to_be32(cmd->residual_count);
+ hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
} else if (cmd->se_cmd.se_cmd_flags & SCF_UNDERFLOW_BIT) {
hdr->flags |= ISCSI_FLAG_CMD_UNDERFLOW;
- hdr->residual_count = cpu_to_be32(cmd->residual_count);
+ hdr->residual_count = cpu_to_be32(cmd->se_cmd.residual_count);
}
hdr->response = cmd->iscsi_response;
hdr->cmd_status = cmd->se_cmd.scsi_status;
hdr = (struct iscsi_tm_rsp *) cmd->pdu;
memset(hdr, 0, ISCSI_HDR_LEN);
hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP;
+ hdr->flags = ISCSI_FLAG_CMD_FINAL;
hdr->response = iscsit_convert_tcm_tmr_rsp(se_tmr);
hdr->itt = cpu_to_be32(cmd->init_task_tag);
cmd->stat_sn = conn->stat_sn++;
static int chap_string_to_hex(unsigned char *dst, unsigned char *src, int len)
{
- int j = DIV_ROUND_UP(len, 2);
+ int j = DIV_ROUND_UP(len, 2), rc;
- hex2bin(dst, src, j);
+ rc = hex2bin(dst, src, j);
+ if (rc < 0)
+ pr_debug("CHAP string contains non hex digit symbols\n");
dst[j] = '\0';
return j;
u32 pdu_send_order;
/* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
u32 pdu_start;
- u32 residual_count;
/* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
u32 seq_send_order;
/* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
atomic_t connection_exit;
atomic_t connection_recovery;
atomic_t connection_reinstatement;
- atomic_t connection_wait;
atomic_t connection_wait_rcfr;
atomic_t sleep_on_conn_wait_comp;
atomic_t transport_failed;
atomic_t session_reinstatement;
atomic_t session_stop_active;
atomic_t sleep_on_sess_wait_comp;
- atomic_t transport_wait_cmds;
/* connection list */
struct list_head sess_conn_list;
struct list_head cr_active_list;
* handle the SCF_SCSI_RESERVATION_CONFLICT case here as well.
*/
if (se_cmd->se_cmd_flags & SCF_SCSI_CDB_EXCEPTION) {
- if (se_cmd->se_cmd_flags &
- SCF_SCSI_RESERVATION_CONFLICT) {
+ if (se_cmd->scsi_sense_reason == TCM_RESERVATION_CONFLICT) {
cmd->i_state = ISTATE_SEND_STATUS;
spin_unlock_bh(&cmd->istate_lock);
iscsit_add_cmd_to_response_queue(cmd, cmd->conn,
iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
ISCSI_LOGIN_STATUS_NO_RESOURCES);
pr_err("Could not allocate memory for session\n");
- return -1;
+ return -ENOMEM;
}
iscsi_login_set_conn_values(sess, conn, pdu->cid);
pr_err("idr_pre_get() for sess_idr failed\n");
iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
+ kfree(sess);
+ return -ENOMEM;
}
spin_lock(&sess_idr_lock);
idr_get_new(&sess_idr, NULL, &sess->session_index);
ISCSI_LOGIN_STATUS_NO_RESOURCES);
pr_err("Unable to allocate memory for"
" struct iscsi_sess_ops.\n");
- return -1;
+ kfree(sess);
+ return -ENOMEM;
}
sess->se_sess = transport_init_session();
- if (!sess->se_sess) {
+ if (IS_ERR(sess->se_sess)) {
iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
ISCSI_LOGIN_STATUS_NO_RESOURCES);
- return -1;
+ kfree(sess);
+ return -ENOMEM;
}
return 0;
return NULL;
}
- login->req = kzalloc(ISCSI_HDR_LEN, GFP_KERNEL);
+ login->req = kmemdup(login_pdu, ISCSI_HDR_LEN, GFP_KERNEL);
if (!login->req) {
pr_err("Unable to allocate memory for Login Request.\n");
iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
ISCSI_LOGIN_STATUS_NO_RESOURCES);
goto out;
}
- memcpy(login->req, login_pdu, ISCSI_HDR_LEN);
login->req_buf = kzalloc(MAX_KEY_VALUE_PAIRS, GFP_KERNEL);
if (!login->req_buf) {
scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr,
&tl_cmd->tl_sense_buf[0]);
- /*
- * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
- */
if (scsi_bidi_cmnd(sc))
- se_cmd->t_tasks_bidi = 1;
+ se_cmd->se_cmd_flags |= SCF_BIDI;
+
/*
* Locate the struct se_lun pointer and attach it to struct se_cmd
*/
* Allocate the necessary tasks to complete the received CDB+data
*/
ret = transport_generic_allocate_tasks(se_cmd, sc->cmnd);
- if (ret == -ENOMEM) {
- /* Out of Resources */
- return PYX_TRANSPORT_LU_COMM_FAILURE;
- } else if (ret == -EINVAL) {
- /*
- * Handle case for SAM_STAT_RESERVATION_CONFLICT
- */
- if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
- /*
- * Otherwise, return SAM_STAT_CHECK_CONDITION and return
- * sense data.
- */
- return PYX_TRANSPORT_USE_SENSE_REASON;
- }
-
+ if (ret != 0)
+ return ret;
/*
* For BIDI commands, pass in the extra READ buffer
* to transport_generic_map_mem_to_cmd() below..
*/
- if (se_cmd->t_tasks_bidi) {
+ if (se_cmd->se_cmd_flags & SCF_BIDI) {
struct scsi_data_buffer *sdb = scsi_in(sc);
sgl_bidi = sdb->table.sgl;
}
/* Tell the core about our preallocated memory */
- ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
+ return transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
scsi_sg_count(sc), sgl_bidi, sgl_bidi_count);
- if (ret < 0)
- return PYX_TRANSPORT_LU_COMM_FAILURE;
-
- return 0;
}
/*
{
struct tcm_loop_hba *tl_hba = container_of(wwn,
struct tcm_loop_hba, tl_hba_wwn);
- int host_no = tl_hba->sh->host_no;
+
+ pr_debug("TCM_Loop_ConfigFS: Deallocating emulated Target"
+ " SAS Address: %s at Linux/SCSI Host ID: %d\n",
+ tl_hba->tl_wwn_address, tl_hba->sh->host_no);
/*
* Call device_unregister() on the original tl_hba->dev.
* tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will
* release *tl_hba;
*/
device_unregister(&tl_hba->dev);
-
- pr_debug("TCM_Loop_ConfigFS: Deallocated emulated Target"
- " SAS Address: %s at Linux/SCSI Host ID: %d\n",
- config_item_name(&wwn->wwn_group.cg_item), host_no);
}
/* Start items for tcm_loop_cit */
int alua_access_state, primary = 0, rc;
u16 tg_pt_id, rtpi;
- if (!l_port)
- return PYX_TRANSPORT_LU_COMM_FAILURE;
-
+ if (!l_port) {
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
+ }
buf = transport_kmap_first_data_page(cmd);
/*
l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem;
if (!l_tg_pt_gp_mem) {
pr_err("Unable to access l_port->sep_alua_tg_pt_gp_mem\n");
- rc = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ rc = -EINVAL;
goto out;
}
spin_lock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
if (!l_tg_pt_gp) {
spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
pr_err("Unable to access *l_tg_pt_gp_mem->tg_pt_gp\n");
- rc = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ rc = -EINVAL;
goto out;
}
rc = (l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA);
if (!rc) {
pr_debug("Unable to process SET_TARGET_PORT_GROUPS"
" while TPGS_EXPLICT_ALUA is disabled\n");
- rc = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ rc = -EINVAL;
goto out;
}
* REQUEST, and the additional sense code set to INVALID
* FIELD IN PARAMETER LIST.
*/
- rc = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ rc = -EINVAL;
goto out;
}
rc = -1;
* throw an exception with ASCQ: INVALID_PARAMETER_LIST
*/
if (rc != 0) {
- rc = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ rc = -EINVAL;
goto out;
}
} else {
* INVALID_PARAMETER_LIST
*/
if (rc != 0) {
- rc = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ rc = -EINVAL;
goto out;
}
}
* struct t10_alua_lu_gp.
*/
spin_lock(&lu_gps_lock);
- atomic_set(&lu_gp->lu_gp_shutdown, 1);
list_del(&lu_gp->lu_gp_node);
alua_lu_gps_count--;
spin_unlock(&lu_gps_lock);
tg_pt_gp_mem->tg_pt = port;
port->sep_alua_tg_pt_gp_mem = tg_pt_gp_mem;
- atomic_set(&port->sep_tg_pt_gp_active, 1);
return tg_pt_gp_mem;
}
if (cmd->data_length < 60)
return 0;
- buf[2] = 0x3c;
+ buf[3] = 0x3c;
/* Set HEADSUP, ORDSUP, SIMPSUP */
buf[5] = 0x07;
if (cmd->data_length < 4) {
pr_err("SCSI Inquiry payload length: %u"
" too small for EVPD=1\n", cmd->data_length);
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
return -EINVAL;
}
}
pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]);
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
ret = -EINVAL;
out_unmap:
default:
pr_err("MODE SENSE: unimplemented page/subpage: 0x%02x/0x%02x\n",
cdb[2] & 0x3f, cdb[3]);
- return PYX_TRANSPORT_UNKNOWN_MODE_PAGE;
+ cmd->scsi_sense_reason = TCM_UNKNOWN_MODE_PAGE;
+ return -EINVAL;
}
offset += length;
if (cdb[1] & 0x01) {
pr_err("REQUEST_SENSE description emulation not"
" supported\n");
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -ENOSYS;
}
buf = transport_kmap_first_data_page(cmd);
if (!dev->transport->do_discard) {
pr_err("UNMAP emulation not supported for: %s\n",
dev->transport->name);
- return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ return -ENOSYS;
}
/* First UNMAP block descriptor starts at 8 byte offset */
if (!dev->transport->do_discard) {
pr_err("WRITE_SAME emulation not supported"
" for: %s\n", dev->transport->name);
- return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ return -ENOSYS;
}
if (cmd->t_task_cdb[0] == WRITE_SAME)
int target_emulate_synchronize_cache(struct se_task *task)
{
struct se_device *dev = task->task_se_cmd->se_dev;
+ struct se_cmd *cmd = task->task_se_cmd;
if (!dev->transport->do_sync_cache) {
pr_err("SYNCHRONIZE_CACHE emulation not supported"
" for: %s\n", dev->transport->name);
- return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ return -ENOSYS;
}
dev->transport->do_sync_cache(task);
static struct config_group alua_group;
static struct config_group alua_lu_gps_group;
-static DEFINE_SPINLOCK(se_device_lock);
-static LIST_HEAD(se_dev_list);
-
static inline struct se_hba *
item_to_hba(struct config_item *item)
{
" struct se_subsystem_dev\n");
goto unlock;
}
- INIT_LIST_HEAD(&se_dev->se_dev_node);
INIT_LIST_HEAD(&se_dev->t10_wwn.t10_vpd_list);
spin_lock_init(&se_dev->t10_wwn.t10_vpd_lock);
INIT_LIST_HEAD(&se_dev->t10_pr.registration_list);
" from allocate_virtdevice()\n");
goto out;
}
- spin_lock(&se_device_lock);
- list_add_tail(&se_dev->se_dev_node, &se_dev_list);
- spin_unlock(&se_device_lock);
config_group_init_type_name(&se_dev->se_dev_group, name,
&target_core_dev_cit);
mutex_lock(&hba->hba_access_mutex);
t = hba->transport;
- spin_lock(&se_device_lock);
- list_del(&se_dev->se_dev_node);
- spin_unlock(&se_device_lock);
-
dev_stat_grp = &se_dev->dev_stat_grps.stat_group;
for (i = 0; dev_stat_grp->default_groups[i]; i++) {
df_item = &dev_stat_grp->default_groups[i]->cg_item;
se_cmd->se_lun = deve->se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
- se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
}
spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
se_lun = &se_sess->se_tpg->tpg_virt_lun0;
se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0;
se_cmd->orig_fe_lun = 0;
- se_cmd->se_orig_obj_ptr = se_cmd->se_lun->lun_se_dev;
se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
}
/*
se_lun = deve->se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
se_cmd->orig_fe_lun = unpacked_lun;
- se_cmd->se_orig_obj_ptr = se_cmd->se_dev;
}
spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
se_task->task_scsi_status = GOOD;
transport_complete_task(se_task, 1);
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
}
/* se_release_device_for_hba():
return -EINVAL;
}
- pr_err("dpo_emulated not supported\n");
- return -EINVAL;
+ if (flag) {
+ pr_err("dpo_emulated not supported\n");
+ return -EINVAL;
+ }
+
+ return 0;
}
int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
return -EINVAL;
}
- if (dev->transport->fua_write_emulated == 0) {
+ if (flag && dev->transport->fua_write_emulated == 0) {
pr_err("fua_write_emulated not supported\n");
return -EINVAL;
}
return -EINVAL;
}
- pr_err("ua read emulated not supported\n");
- return -EINVAL;
+ if (flag) {
+ pr_err("ua read emulated not supported\n");
+ return -EINVAL;
+ }
+
+ return 0;
}
int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
pr_err("Illegal value %d\n", flag);
return -EINVAL;
}
- if (dev->transport->write_cache_emulated == 0) {
+ if (flag && dev->transport->write_cache_emulated == 0) {
pr_err("write_cache_emulated not supported\n");
return -EINVAL;
}
* We expect this value to be non-zero when generic Block Layer
* Discard supported is detected iblock_create_virtdevice().
*/
- if (!dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
+ if (flag && !dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
pr_err("Generic Block Discard not supported\n");
return -ENOSYS;
}
* We expect this value to be non-zero when generic Block Layer
* Discard supported is detected iblock_create_virtdevice().
*/
- if (!dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
+ if (flag && !dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count) {
pr_err("Generic Block Discard not supported\n");
return -ENOSYS;
}
ret = -ENOMEM;
goto out;
}
- INIT_LIST_HEAD(&se_dev->se_dev_node);
INIT_LIST_HEAD(&se_dev->t10_wwn.t10_vpd_list);
spin_lock_init(&se_dev->t10_wwn.t10_vpd_lock);
INIT_LIST_HEAD(&se_dev->t10_pr.registration_list);
return -ENOMEM;
}
- for (i = 0; i < task->task_sg_nents; i++) {
- iov[i].iov_len = sg[i].length;
- iov[i].iov_base = sg_virt(&sg[i]);
+ for_each_sg(task->task_sg, sg, task->task_sg_nents, i) {
+ iov[i].iov_len = sg->length;
+ iov[i].iov_base = sg_virt(sg);
}
old_fs = get_fs();
return -ENOMEM;
}
- for (i = 0; i < task->task_sg_nents; i++) {
- iov[i].iov_len = sg[i].length;
- iov[i].iov_base = sg_virt(&sg[i]);
+ for_each_sg(task->task_sg, sg, task->task_sg_nents, i) {
+ iov[i].iov_len = sg->length;
+ iov[i].iov_base = sg_virt(sg);
}
old_fs = get_fs();
if (ret > 0 &&
dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0 &&
dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
- cmd->t_tasks_fua) {
+ (cmd->se_cmd_flags & SCF_FUA)) {
/*
* We might need to be a bit smarter here
* and return some sense data to let the initiator
}
- if (ret < 0)
+ if (ret < 0) {
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
return ret;
+ }
if (ret) {
task->task_scsi_status = GOOD;
transport_complete_task(task, 1);
}
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
}
/* fd_free_task(): (Part of se_subsystem_api_t template)
*/
if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache == 0 ||
(dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
- task->task_se_cmd->t_tasks_fua))
+ (cmd->se_cmd_flags & SCF_FUA)))
rw = WRITE_FUA;
else
rw = WRITE;
else {
pr_err("Unsupported SCSI -> BLOCK LBA conversion:"
" %u\n", dev->se_sub_dev->se_dev_attrib.block_size);
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENOSYS;
}
bio = iblock_get_bio(task, block_lba, sg_num);
- if (!bio)
- return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+ if (!bio) {
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENOMEM;
+ }
bio_list_init(&list);
bio_list_add(&list, bio);
submit_bio(rw, bio);
blk_finish_plug(&plug);
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
fail:
while ((bio = bio_list_pop(&list)))
bio_put(bio);
- return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENOMEM;
}
static u32 iblock_get_device_rev(struct se_device *dev)
pr_err("Received legacy SPC-2 RESERVE/RELEASE"
" while active SPC-3 registrations exist,"
" returning RESERVATION_CONFLICT\n");
- *ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
return true;
}
(cmd->t_task_cdb[1] & 0x02)) {
pr_err("LongIO and Obselete Bits set, returning"
" ILLEGAL_REQUEST\n");
- ret = PYX_TRANSPORT_ILLEGAL_REQUEST;
+ cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
+ ret = -EINVAL;
goto out;
}
/*
" from %s \n", cmd->se_lun->unpacked_lun,
cmd->se_deve->mapped_lun,
sess->se_node_acl->initiatorname);
- ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ ret = -EINVAL;
goto out_unlock;
}
tidh_new = kzalloc(sizeof(struct pr_transport_id_holder), GFP_KERNEL);
if (!tidh_new) {
pr_err("Unable to allocate tidh_new\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
INIT_LIST_HEAD(&tidh_new->dest_list);
tidh_new->dest_tpg = tpg;
sa_res_key, all_tg_pt, aptpl);
if (!local_pr_reg) {
kfree(tidh_new);
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENOMEM;
}
tidh_new->dest_pr_reg = local_pr_reg;
/*
pr_err("SPC-3 PR: Illegal tpdl: %u + 28 byte header"
" does not equal CDB data_length: %u\n", tpdl,
cmd->data_length);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
/*
" for tmp_tpg\n");
atomic_dec(&tmp_tpg->tpg_pr_ref_count);
smp_mb__after_atomic_dec();
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ ret = -EINVAL;
goto out;
}
/*
atomic_dec(&dest_node_acl->acl_pr_ref_count);
smp_mb__after_atomic_dec();
core_scsi3_tpg_undepend_item(tmp_tpg);
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ ret = -EINVAL;
goto out;
}
if (!dest_tpg) {
pr_err("SPC-3 PR SPEC_I_PT: Unable to locate"
" dest_tpg\n");
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
#if 0
" %u for Transport ID: %s\n", tid_len, ptr);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
/*
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
smp_mb__after_atomic_dec();
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ ret = -EINVAL;
goto out;
}
#if 0
core_scsi3_lunacl_undepend_item(dest_se_deve);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ ret = -ENOMEM;
goto out;
}
INIT_LIST_HEAD(&tidh_new->dest_list);
core_scsi3_nodeacl_undepend_item(dest_node_acl);
core_scsi3_tpg_undepend_item(dest_tpg);
kfree(tidh_new);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
tidh_new->dest_pr_reg = dest_pr_reg;
if (!se_sess || !se_lun) {
pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
se_tpg = se_sess->se_tpg;
se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
if (res_key) {
pr_warn("SPC-3 PR: Reservation Key non-zero"
" for SA REGISTER, returning CONFLICT\n");
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* Do nothing but return GOOD status.
*/
if (!sa_res_key)
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
if (!spec_i_pt) {
/*
if (ret != 0) {
pr_err("Unable to allocate"
" struct t10_pr_registration\n");
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
} else {
/*
" 0x%016Lx\n", res_key,
pr_reg->pr_res_key);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
}
if (spec_i_pt) {
pr_err("SPC-3 PR UNREGISTER: SPEC_I_PT"
" set while sa_res_key=0\n");
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
/*
* An existing ALL_TG_PT=1 registration being released
" registration exists, but ALL_TG_PT=1 bit not"
" present in received PROUT\n");
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
/*
* Allocate APTPL metadata buffer used for UNREGISTER ops
pr_err("Unable to allocate"
" pr_aptpl_buf\n");
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
}
/*
if (pr_holder < 0) {
kfree(pr_aptpl_buf);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
spin_lock(&pr_tmpl->registration_lock);
if (!se_sess || !se_lun) {
pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
se_tpg = se_sess->se_tpg;
se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
if (!pr_reg) {
pr_err("SPC-3 PR: Unable to locate"
" PR_REGISTERED *pr_reg for RESERVE\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
/*
* From spc4r17 Section 5.7.9: Reserving:
" does not match existing SA REGISTER res_key:"
" 0x%016Lx\n", res_key, pr_reg->pr_res_key);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* From spc4r17 Section 5.7.9: Reserving:
if (scope != PR_SCOPE_LU_SCOPE) {
pr_err("SPC-3 PR: Illegal SCOPE: 0x%02x\n", scope);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
/*
* See if we have an existing PR reservation holder pointer at
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* From spc4r17 Section 5.7.9: Reserving:
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* From spc4r17 Section 5.7.9: Reserving:
*/
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
}
/*
* Otherwise, our *pr_reg becomes the PR reservation holder for said
default:
pr_err("SPC-3 PR: Unknown Service Action RESERVE Type:"
" 0x%02x\n", type);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
return ret;
if (!se_sess || !se_lun) {
pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
/*
* Locate the existing *pr_reg via struct se_node_acl pointers
if (!pr_reg) {
pr_err("SPC-3 PR: Unable to locate"
" PR_REGISTERED *pr_reg for RELEASE\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
/*
* From spc4r17 Section 5.7.11.2 Releasing:
*/
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
}
if ((pr_res_holder->pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_ALLREG) ||
(pr_res_holder->pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_ALLREG))
*/
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
}
/*
* From spc4r17 Section 5.7.11.2 Releasing:
" 0x%016Lx\n", res_key, pr_reg->pr_res_key);
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* From spc4r17 Section 5.7.11.2 Releasing and above:
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* In response to a persistent reservation release request from the
if (!pr_reg_n) {
pr_err("SPC-3 PR: Unable to locate"
" PR_REGISTERED *pr_reg for CLEAR\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
/*
* From spc4r17 section 5.7.11.6, Clearing:
" existing SA REGISTER res_key:"
" 0x%016Lx\n", res_key, pr_reg_n->pr_res_key);
core_scsi3_put_pr_reg(pr_reg_n);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* a) Release the persistent reservation, if any;
int all_reg = 0, calling_it_nexus = 0, released_regs = 0;
int prh_type = 0, prh_scope = 0, ret;
- if (!se_sess)
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ if (!se_sess) {
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
+ }
se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun];
pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl,
pr_err("SPC-3 PR: Unable to locate"
" PR_REGISTERED *pr_reg for PREEMPT%s\n",
(abort) ? "_AND_ABORT" : "");
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
if (pr_reg_n->pr_res_key != res_key) {
core_scsi3_put_pr_reg(pr_reg_n);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
if (scope != PR_SCOPE_LU_SCOPE) {
pr_err("SPC-3 PR: Illegal SCOPE: 0x%02x\n", scope);
core_scsi3_put_pr_reg(pr_reg_n);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
INIT_LIST_HEAD(&preempt_and_abort_list);
if (!all_reg && !sa_res_key) {
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg_n);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
/*
* From spc4r17, section 5.7.11.4.4 Removing Registrations:
if (!released_regs) {
spin_unlock(&dev->dev_reservation_lock);
core_scsi3_put_pr_reg(pr_reg_n);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* For an existing all registrants type reservation
default:
pr_err("SPC-3 PR: Unknown Service Action PREEMPT%s"
" Type: 0x%02x\n", (abort) ? "_AND_ABORT" : "", type);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
return ret;
if (!se_sess || !se_lun) {
pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
memset(dest_iport, 0, 64);
memset(i_buf, 0, PR_REG_ISID_ID_LEN);
if (!pr_reg) {
pr_err("SPC-3 PR: Unable to locate PR_REGISTERED"
" *pr_reg for REGISTER_AND_MOVE\n");
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
/*
* The provided reservation key much match the existing reservation key
" res_key: 0x%016Lx does not match existing SA REGISTER"
" res_key: 0x%016Lx\n", res_key, pr_reg->pr_res_key);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
/*
* The service active reservation key needs to be non zero
pr_warn("SPC-3 PR REGISTER_AND_MOVE: Received zero"
" sa_res_key\n");
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
/*
" does not equal CDB data_length: %u\n", tid_len,
cmd->data_length);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
spin_lock(&dev->se_port_lock);
atomic_dec(&dest_se_tpg->tpg_pr_ref_count);
smp_mb__after_atomic_dec();
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
}
spin_lock(&dev->se_port_lock);
" fabric ops from Relative Target Port Identifier:"
" %hu\n", rtpi);
core_scsi3_put_pr_reg(pr_reg);
- return PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ return -EINVAL;
}
buf = transport_kmap_first_data_page(cmd);
" from fabric: %s\n", proto_ident,
dest_tf_ops->get_fabric_proto_ident(dest_se_tpg),
dest_tf_ops->get_fabric_name());
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
if (dest_tf_ops->tpg_parse_pr_out_transport_id == NULL) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Fabric does not"
" containg a valid tpg_parse_pr_out_transport_id"
" function pointer\n");
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ ret = -EINVAL;
goto out;
}
initiator_str = dest_tf_ops->tpg_parse_pr_out_transport_id(dest_se_tpg,
if (!initiator_str) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Unable to locate"
" initiator_str from Transport ID\n");
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
pr_err("SPC-3 PR REGISTER_AND_MOVE: TransportID: %s"
" matches: %s on received I_T Nexus\n", initiator_str,
pr_reg_nacl->initiatorname);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
if (!strcmp(iport_ptr, pr_reg->pr_reg_isid)) {
" matches: %s %s on received I_T Nexus\n",
initiator_str, iport_ptr, pr_reg_nacl->initiatorname,
pr_reg->pr_reg_isid);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
after_iport_check:
pr_err("Unable to locate %s dest_node_acl for"
" TransportID%s\n", dest_tf_ops->get_fabric_name(),
initiator_str);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
ret = core_scsi3_nodeacl_depend_item(dest_node_acl);
atomic_dec(&dest_node_acl->acl_pr_ref_count);
smp_mb__after_atomic_dec();
dest_node_acl = NULL;
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
#if 0
if (!dest_se_deve) {
pr_err("Unable to locate %s dest_se_deve from RTPI:"
" %hu\n", dest_tf_ops->get_fabric_name(), rtpi);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
atomic_dec(&dest_se_deve->pr_ref_count);
smp_mb__after_atomic_dec();
dest_se_deve = NULL;
- ret = PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ ret = -EINVAL;
goto out;
}
#if 0
pr_warn("SPC-3 PR REGISTER_AND_MOVE: No reservation"
" currently held\n");
spin_unlock(&dev->dev_reservation_lock);
- ret = PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ ret = -EINVAL;
goto out;
}
/*
pr_warn("SPC-3 PR REGISTER_AND_MOVE: Calling I_T"
" Nexus is not reservation holder\n");
spin_unlock(&dev->dev_reservation_lock);
- ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ ret = -EINVAL;
goto out;
}
/*
" reservation for type: %s\n",
core_scsi3_pr_dump_type(pr_res_holder->pr_res_type));
spin_unlock(&dev->dev_reservation_lock);
- ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ ret = -EINVAL;
goto out;
}
pr_res_nacl = pr_res_holder->pr_reg_nacl;
sa_res_key, 0, aptpl, 2, 1);
if (ret != 0) {
spin_unlock(&dev->dev_reservation_lock);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl,
pr_err("Received PERSISTENT_RESERVE CDB while legacy"
" SPC-2 reservation is held, returning"
" RESERVATION_CONFLICT\n");
- ret = PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ ret = EINVAL;
goto out;
}
* FIXME: A NULL struct se_session pointer means an this is not coming from
* a $FABRIC_MOD's nexus, but from internal passthrough ops.
*/
- if (!cmd->se_sess)
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ if (!cmd->se_sess) {
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -EINVAL;
+ }
if (cmd->data_length < 24) {
pr_warn("SPC-PR: Received PR OUT parameter list"
" length too small: %u\n", cmd->data_length);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
/*
* SPEC_I_PT=1 is only valid for Service action: REGISTER
*/
if (spec_i_pt && ((cdb[1] & 0x1f) != PRO_REGISTER)) {
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
(cmd->data_length != 24)) {
pr_warn("SPC-PR: Received PR OUT illegal parameter"
" list length: %u\n", cmd->data_length);
- ret = PYX_TRANSPORT_INVALID_PARAMETER_LIST;
+ cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
+ ret = -EINVAL;
goto out;
}
/*
default:
pr_err("Unknown PERSISTENT_RESERVE_OUT service"
" action: 0x%02x\n", cdb[1] & 0x1f);
- ret = PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ ret = -EINVAL;
break;
}
if (cmd->data_length < 8) {
pr_err("PRIN SA READ_KEYS SCSI Data Length: %u"
" too small\n", cmd->data_length);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
buf = transport_kmap_first_data_page(cmd);
if (cmd->data_length < 8) {
pr_err("PRIN SA READ_RESERVATIONS SCSI Data Length: %u"
" too small\n", cmd->data_length);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
buf = transport_kmap_first_data_page(cmd);
if (cmd->data_length < 6) {
pr_err("PRIN SA REPORT_CAPABILITIES SCSI Data Length:"
" %u too small\n", cmd->data_length);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
buf = transport_kmap_first_data_page(cmd);
if (cmd->data_length < 8) {
pr_err("PRIN SA READ_FULL_STATUS SCSI Data Length: %u"
" too small\n", cmd->data_length);
- return PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
}
buf = transport_kmap_first_data_page(cmd);
pr_err("Received PERSISTENT_RESERVE CDB while legacy"
" SPC-2 reservation is held, returning"
" RESERVATION_CONFLICT\n");
- return PYX_TRANSPORT_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EINVAL;
}
switch (cmd->t_task_cdb[1] & 0x1f) {
default:
pr_err("Unknown PERSISTENT_RESERVE_IN service"
" action: 0x%02x\n", cmd->t_task_cdb[1] & 0x1f);
- ret = PYX_TRANSPORT_INVALID_CDB_FIELD;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ ret = -EINVAL;
break;
}
static int pscsi_map_sg(struct se_task *task, struct scatterlist *task_sg,
struct bio **hbio)
{
+ struct se_cmd *cmd = task->task_se_cmd;
struct pscsi_dev_virt *pdv = task->task_se_cmd->se_dev->dev_ptr;
u32 task_sg_num = task->task_sg_nents;
struct bio *bio = NULL, *tbio = NULL;
u32 data_len = task->task_size, i, len, bytes, off;
int nr_pages = (task->task_size + task_sg[0].offset +
PAGE_SIZE - 1) >> PAGE_SHIFT;
- int nr_vecs = 0, rc, ret = PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+ int nr_vecs = 0, rc;
int rw = (task->task_data_direction == DMA_TO_DEVICE);
*hbio = NULL;
bio->bi_next = NULL;
bio_endio(bio, 0); /* XXX: should be error */
}
- return ret;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENOMEM;
}
static int pscsi_do_task(struct se_task *task)
{
+ struct se_cmd *cmd = task->task_se_cmd;
struct pscsi_dev_virt *pdv = task->task_se_cmd->se_dev->dev_ptr;
struct pscsi_plugin_task *pt = PSCSI_TASK(task);
struct request *req;
if (!req || IS_ERR(req)) {
pr_err("PSCSI: blk_get_request() failed: %ld\n",
req ? IS_ERR(req) : -ENOMEM);
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENODEV;
}
} else {
BUG_ON(!task->task_size);
* Setup the main struct request for the task->task_sg[] payload
*/
ret = pscsi_map_sg(task, task->task_sg, &hbio);
- if (ret < 0)
- return PYX_TRANSPORT_LU_COMM_FAILURE;
+ if (ret < 0) {
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return ret;
+ }
req = blk_make_request(pdv->pdv_sd->request_queue, hbio,
GFP_KERNEL);
(task->task_se_cmd->sam_task_attr == MSG_HEAD_TAG),
pscsi_req_done);
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
fail:
while (hbio) {
bio->bi_next = NULL;
bio_endio(bio, 0); /* XXX: should be error */
}
- return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return -ENOMEM;
}
/* pscsi_get_sense_buffer():
" 0x%02x Result: 0x%08x\n", task, pt->pscsi_cdb[0],
pt->pscsi_result);
task->task_scsi_status = SAM_STAT_CHECK_CONDITION;
- task->task_error_status = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
- task->task_se_cmd->transport_error_status =
- PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ task->task_se_cmd->scsi_sense_reason =
+ TCM_UNSUPPORTED_SCSI_OPCODE;
transport_complete_task(task, 0);
break;
}
return NULL;
}
-/* rd_MEMCPY_read():
- *
- *
- */
-static int rd_MEMCPY_read(struct rd_request *req)
+static int rd_MEMCPY(struct rd_request *req, u32 read_rd)
{
struct se_task *task = &req->rd_task;
struct rd_dev *dev = req->rd_task.task_se_cmd->se_dev->dev_ptr;
struct rd_dev_sg_table *table;
- struct scatterlist *sg_d, *sg_s;
- void *dst, *src;
- u32 i = 0, j = 0, dst_offset = 0, src_offset = 0;
- u32 length, page_end = 0, table_sg_end;
+ struct scatterlist *rd_sg;
+ struct sg_mapping_iter m;
u32 rd_offset = req->rd_offset;
+ u32 src_len;
table = rd_get_sg_table(dev, req->rd_page);
if (!table)
return -EINVAL;
- table_sg_end = (table->page_end_offset - req->rd_page);
- sg_d = task->task_sg;
- sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
+ rd_sg = &table->sg_table[req->rd_page - table->page_start_offset];
- pr_debug("RD[%u]: Read LBA: %llu, Size: %u Page: %u, Offset:"
- " %u\n", dev->rd_dev_id, task->task_lba, req->rd_size,
- req->rd_page, req->rd_offset);
-
- src_offset = rd_offset;
+ pr_debug("RD[%u]: %s LBA: %llu, Size: %u Page: %u, Offset: %u\n",
+ dev->rd_dev_id, read_rd ? "Read" : "Write",
+ task->task_lba, req->rd_size, req->rd_page,
+ rd_offset);
+ src_len = PAGE_SIZE - rd_offset;
+ sg_miter_start(&m, task->task_sg, task->task_sg_nents,
+ read_rd ? SG_MITER_TO_SG : SG_MITER_FROM_SG);
while (req->rd_size) {
- if ((sg_d[i].length - dst_offset) <
- (sg_s[j].length - src_offset)) {
- length = (sg_d[i].length - dst_offset);
-
- pr_debug("Step 1 - sg_d[%d]: %p length: %d"
- " offset: %u sg_s[%d].length: %u\n", i,
- &sg_d[i], sg_d[i].length, sg_d[i].offset, j,
- sg_s[j].length);
- pr_debug("Step 1 - length: %u dst_offset: %u"
- " src_offset: %u\n", length, dst_offset,
- src_offset);
-
- if (length > req->rd_size)
- length = req->rd_size;
-
- dst = sg_virt(&sg_d[i++]) + dst_offset;
- BUG_ON(!dst);
-
- src = sg_virt(&sg_s[j]) + src_offset;
- BUG_ON(!src);
-
- dst_offset = 0;
- src_offset = length;
- page_end = 0;
- } else {
- length = (sg_s[j].length - src_offset);
-
- pr_debug("Step 2 - sg_d[%d]: %p length: %d"
- " offset: %u sg_s[%d].length: %u\n", i,
- &sg_d[i], sg_d[i].length, sg_d[i].offset,
- j, sg_s[j].length);
- pr_debug("Step 2 - length: %u dst_offset: %u"
- " src_offset: %u\n", length, dst_offset,
- src_offset);
-
- if (length > req->rd_size)
- length = req->rd_size;
-
- dst = sg_virt(&sg_d[i]) + dst_offset;
- BUG_ON(!dst);
-
- if (sg_d[i].length == length) {
- i++;
- dst_offset = 0;
- } else
- dst_offset = length;
-
- src = sg_virt(&sg_s[j++]) + src_offset;
- BUG_ON(!src);
-
- src_offset = 0;
- page_end = 1;
- }
+ u32 len;
+ void *rd_addr;
- memcpy(dst, src, length);
+ sg_miter_next(&m);
+ len = min((u32)m.length, src_len);
+ m.consumed = len;
- pr_debug("page: %u, remaining size: %u, length: %u,"
- " i: %u, j: %u\n", req->rd_page,
- (req->rd_size - length), length, i, j);
+ rd_addr = sg_virt(rd_sg) + rd_offset;
- req->rd_size -= length;
- if (!req->rd_size)
- return 0;
+ if (read_rd)
+ memcpy(m.addr, rd_addr, len);
+ else
+ memcpy(rd_addr, m.addr, len);
- if (!page_end)
+ req->rd_size -= len;
+ if (!req->rd_size)
continue;
- if (++req->rd_page <= table->page_end_offset) {
- pr_debug("page: %u in same page table\n",
- req->rd_page);
+ src_len -= len;
+ if (src_len) {
+ rd_offset += len;
continue;
}
- pr_debug("getting new page table for page: %u\n",
- req->rd_page);
-
- table = rd_get_sg_table(dev, req->rd_page);
- if (!table)
- return -EINVAL;
-
- sg_s = &table->sg_table[j = 0];
- }
-
- return 0;
-}
-
-/* rd_MEMCPY_write():
- *
- *
- */
-static int rd_MEMCPY_write(struct rd_request *req)
-{
- struct se_task *task = &req->rd_task;
- struct rd_dev *dev = req->rd_task.task_se_cmd->se_dev->dev_ptr;
- struct rd_dev_sg_table *table;
- struct scatterlist *sg_d, *sg_s;
- void *dst, *src;
- u32 i = 0, j = 0, dst_offset = 0, src_offset = 0;
- u32 length, page_end = 0, table_sg_end;
- u32 rd_offset = req->rd_offset;
-
- table = rd_get_sg_table(dev, req->rd_page);
- if (!table)
- return -EINVAL;
-
- table_sg_end = (table->page_end_offset - req->rd_page);
- sg_d = &table->sg_table[req->rd_page - table->page_start_offset];
- sg_s = task->task_sg;
-
- pr_debug("RD[%d] Write LBA: %llu, Size: %u, Page: %u,"
- " Offset: %u\n", dev->rd_dev_id, task->task_lba, req->rd_size,
- req->rd_page, req->rd_offset);
-
- dst_offset = rd_offset;
-
- while (req->rd_size) {
- if ((sg_s[i].length - src_offset) <
- (sg_d[j].length - dst_offset)) {
- length = (sg_s[i].length - src_offset);
-
- pr_debug("Step 1 - sg_s[%d]: %p length: %d"
- " offset: %d sg_d[%d].length: %u\n", i,
- &sg_s[i], sg_s[i].length, sg_s[i].offset,
- j, sg_d[j].length);
- pr_debug("Step 1 - length: %u src_offset: %u"
- " dst_offset: %u\n", length, src_offset,
- dst_offset);
-
- if (length > req->rd_size)
- length = req->rd_size;
-
- src = sg_virt(&sg_s[i++]) + src_offset;
- BUG_ON(!src);
-
- dst = sg_virt(&sg_d[j]) + dst_offset;
- BUG_ON(!dst);
-
- src_offset = 0;
- dst_offset = length;
- page_end = 0;
- } else {
- length = (sg_d[j].length - dst_offset);
-
- pr_debug("Step 2 - sg_s[%d]: %p length: %d"
- " offset: %d sg_d[%d].length: %u\n", i,
- &sg_s[i], sg_s[i].length, sg_s[i].offset,
- j, sg_d[j].length);
- pr_debug("Step 2 - length: %u src_offset: %u"
- " dst_offset: %u\n", length, src_offset,
- dst_offset);
-
- if (length > req->rd_size)
- length = req->rd_size;
-
- src = sg_virt(&sg_s[i]) + src_offset;
- BUG_ON(!src);
-
- if (sg_s[i].length == length) {
- i++;
- src_offset = 0;
- } else
- src_offset = length;
-
- dst = sg_virt(&sg_d[j++]) + dst_offset;
- BUG_ON(!dst);
-
- dst_offset = 0;
- page_end = 1;
- }
-
- memcpy(dst, src, length);
-
- pr_debug("page: %u, remaining size: %u, length: %u,"
- " i: %u, j: %u\n", req->rd_page,
- (req->rd_size - length), length, i, j);
-
- req->rd_size -= length;
- if (!req->rd_size)
- return 0;
-
- if (!page_end)
- continue;
-
- if (++req->rd_page <= table->page_end_offset) {
- pr_debug("page: %u in same page table\n",
- req->rd_page);
+ /* rd page completed, next one please */
+ req->rd_page++;
+ rd_offset = 0;
+ src_len = PAGE_SIZE;
+ if (req->rd_page <= table->page_end_offset) {
+ rd_sg++;
continue;
}
- pr_debug("getting new page table for page: %u\n",
- req->rd_page);
-
table = rd_get_sg_table(dev, req->rd_page);
- if (!table)
+ if (!table) {
+ sg_miter_stop(&m);
return -EINVAL;
+ }
- sg_d = &table->sg_table[j = 0];
+ /* since we increment, the first sg entry is correct */
+ rd_sg = table->sg_table;
}
-
+ sg_miter_stop(&m);
return 0;
}
{
struct se_device *dev = task->task_se_cmd->se_dev;
struct rd_request *req = RD_REQ(task);
- unsigned long long lba;
+ u64 tmp;
int ret;
- req->rd_page = (task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size) / PAGE_SIZE;
- lba = task->task_lba;
- req->rd_offset = (do_div(lba,
- (PAGE_SIZE / dev->se_sub_dev->se_dev_attrib.block_size))) *
- dev->se_sub_dev->se_dev_attrib.block_size;
+ tmp = task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
+ req->rd_offset = do_div(tmp, PAGE_SIZE);
+ req->rd_page = tmp;
req->rd_size = task->task_size;
- if (task->task_data_direction == DMA_FROM_DEVICE)
- ret = rd_MEMCPY_read(req);
- else
- ret = rd_MEMCPY_write(req);
-
+ ret = rd_MEMCPY(req, task->task_data_direction == DMA_FROM_DEVICE);
if (ret != 0)
return ret;
task->task_scsi_status = GOOD;
transport_complete_task(task, 1);
-
- return PYX_TRANSPORT_SENT_TO_TRANSPORT;
+ return 0;
}
/* rd_free_task(): (Part of se_subsystem_api_t template)
" %d t_fe_count: %d\n", (preempt_and_abort_list) ?
"Preempt" : "", cmd, cmd->t_state,
atomic_read(&cmd->t_fe_count));
- /*
- * Signal that the command has failed via cmd->se_cmd_flags,
- */
- transport_new_cmd_failure(cmd);
core_tmr_handle_tas_abort(tmr_nacl, cmd, tas,
atomic_read(&cmd->t_fe_count));
static int sub_api_initialized;
static struct workqueue_struct *target_completion_wq;
-static struct kmem_cache *se_cmd_cache;
static struct kmem_cache *se_sess_cache;
struct kmem_cache *se_tmr_req_cache;
struct kmem_cache *se_ua_cache;
static void transport_put_cmd(struct se_cmd *cmd);
static void transport_remove_cmd_from_queue(struct se_cmd *cmd);
static int transport_set_sense_codes(struct se_cmd *cmd, u8 asc, u8 ascq);
-static void transport_generic_request_failure(struct se_cmd *, int, int);
+static void transport_generic_request_failure(struct se_cmd *);
static void target_complete_ok_work(struct work_struct *work);
int init_se_kmem_caches(void)
{
- se_cmd_cache = kmem_cache_create("se_cmd_cache",
- sizeof(struct se_cmd), __alignof__(struct se_cmd), 0, NULL);
- if (!se_cmd_cache) {
- pr_err("kmem_cache_create for struct se_cmd failed\n");
- goto out;
- }
se_tmr_req_cache = kmem_cache_create("se_tmr_cache",
sizeof(struct se_tmr_req), __alignof__(struct se_tmr_req),
0, NULL);
if (!se_tmr_req_cache) {
pr_err("kmem_cache_create() for struct se_tmr_req"
" failed\n");
- goto out_free_cmd_cache;
+ goto out;
}
se_sess_cache = kmem_cache_create("se_sess_cache",
sizeof(struct se_session), __alignof__(struct se_session),
kmem_cache_destroy(se_sess_cache);
out_free_tmr_req_cache:
kmem_cache_destroy(se_tmr_req_cache);
-out_free_cmd_cache:
- kmem_cache_destroy(se_cmd_cache);
out:
return -ENOMEM;
}
void release_se_kmem_caches(void)
{
destroy_workqueue(target_completion_wq);
- kmem_cache_destroy(se_cmd_cache);
kmem_cache_destroy(se_tmr_req_cache);
kmem_cache_destroy(se_sess_cache);
kmem_cache_destroy(se_ua_cache);
task->task_scsi_status = GOOD;
} else {
task->task_scsi_status = SAM_STAT_CHECK_CONDITION;
- task->task_error_status = PYX_TRANSPORT_ILLEGAL_REQUEST;
- task->task_se_cmd->transport_error_status =
- PYX_TRANSPORT_ILLEGAL_REQUEST;
+ task->task_se_cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+
}
transport_complete_task(task, good);
{
struct se_cmd *cmd = container_of(work, struct se_cmd, work);
- transport_generic_request_failure(cmd, 1, 1);
+ transport_generic_request_failure(cmd);
}
/* transport_complete_task():
if (cmd->t_tasks_failed) {
if (!task->task_error_status) {
task->task_error_status =
- PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
- cmd->transport_error_status =
- PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
+
INIT_WORK(&cmd->work, target_complete_failure_work);
} else {
atomic_set(&cmd->t_transport_complete, 1);
dev->se_hba = hba;
dev->se_sub_dev = se_dev;
dev->transport = transport;
- atomic_set(&dev->active_cmds, 0);
INIT_LIST_HEAD(&dev->dev_list);
INIT_LIST_HEAD(&dev->dev_sep_list);
INIT_LIST_HEAD(&dev->dev_tmr_list);
INIT_LIST_HEAD(&dev->execute_task_list);
INIT_LIST_HEAD(&dev->delayed_cmd_list);
- INIT_LIST_HEAD(&dev->ordered_cmd_list);
INIT_LIST_HEAD(&dev->state_task_list);
INIT_LIST_HEAD(&dev->qf_cmd_list);
spin_lock_init(&dev->execute_task_lock);
spin_lock_init(&dev->delayed_cmd_lock);
- spin_lock_init(&dev->ordered_cmd_lock);
- spin_lock_init(&dev->state_task_lock);
- spin_lock_init(&dev->dev_alua_lock);
spin_lock_init(&dev->dev_reservation_lock);
spin_lock_init(&dev->dev_status_lock);
- spin_lock_init(&dev->dev_status_thr_lock);
spin_lock_init(&dev->se_port_lock);
spin_lock_init(&dev->se_tmr_lock);
spin_lock_init(&dev->qf_cmd_lock);
{
INIT_LIST_HEAD(&cmd->se_lun_node);
INIT_LIST_HEAD(&cmd->se_delayed_node);
- INIT_LIST_HEAD(&cmd->se_ordered_node);
INIT_LIST_HEAD(&cmd->se_qf_node);
INIT_LIST_HEAD(&cmd->se_queue_node);
INIT_LIST_HEAD(&cmd->se_cmd_list);
pr_err("Received SCSI CDB with command_size: %d that"
" exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
scsi_command_size(cdb), SCSI_MAX_VARLEN_CDB_SIZE);
+ cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
return -EINVAL;
}
/*
" %u > sizeof(cmd->__t_task_cdb): %lu ops\n",
scsi_command_size(cdb),
(unsigned long)sizeof(cmd->__t_task_cdb));
+ cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+ cmd->scsi_sense_reason =
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
return -ENOMEM;
}
} else
* and call transport_generic_request_failure() if necessary..
*/
ret = transport_generic_new_cmd(cmd);
- if (ret < 0) {
- cmd->transport_error_status = ret;
- transport_generic_request_failure(cmd, 0,
- (cmd->data_direction != DMA_TO_DEVICE));
- }
+ if (ret < 0)
+ transport_generic_request_failure(cmd);
+
return 0;
}
EXPORT_SYMBOL(transport_handle_cdb_direct);
/*
* Handle SAM-esque emulation for generic transport request failures.
*/
-static void transport_generic_request_failure(
- struct se_cmd *cmd,
- int complete,
- int sc)
+static void transport_generic_request_failure(struct se_cmd *cmd)
{
int ret = 0;
pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08x"
" CDB: 0x%02x\n", cmd, cmd->se_tfo->get_task_tag(cmd),
cmd->t_task_cdb[0]);
- pr_debug("-----[ i_state: %d t_state: %d transport_error_status: %d\n",
+ pr_debug("-----[ i_state: %d t_state: %d scsi_sense_reason: %d\n",
cmd->se_tfo->get_cmd_state(cmd),
- cmd->t_state,
- cmd->transport_error_status);
+ cmd->t_state, cmd->scsi_sense_reason);
pr_debug("-----[ t_tasks: %d t_task_cdbs_left: %d"
" t_task_cdbs_sent: %d t_task_cdbs_ex_left: %d --"
" t_transport_active: %d t_transport_stop: %d"
if (cmd->se_dev->dev_task_attr_type == SAM_TASK_ATTR_EMULATED)
transport_complete_task_attr(cmd);
- if (complete) {
- cmd->transport_error_status = PYX_TRANSPORT_LU_COMM_FAILURE;
- }
-
- switch (cmd->transport_error_status) {
- case PYX_TRANSPORT_UNKNOWN_SAM_OPCODE:
- cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
- break;
- case PYX_TRANSPORT_REQ_TOO_MANY_SECTORS:
- cmd->scsi_sense_reason = TCM_SECTOR_COUNT_TOO_MANY;
- break;
- case PYX_TRANSPORT_INVALID_CDB_FIELD:
- cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
- break;
- case PYX_TRANSPORT_INVALID_PARAMETER_LIST:
- cmd->scsi_sense_reason = TCM_INVALID_PARAMETER_LIST;
- break;
- case PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES:
- if (!sc)
- transport_new_cmd_failure(cmd);
- /*
- * Currently for PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES,
- * we force this session to fall back to session
- * recovery.
- */
- cmd->se_tfo->fall_back_to_erl0(cmd->se_sess);
- cmd->se_tfo->stop_session(cmd->se_sess, 0, 0);
-
- goto check_stop;
- case PYX_TRANSPORT_LU_COMM_FAILURE:
- case PYX_TRANSPORT_ILLEGAL_REQUEST:
- cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- break;
- case PYX_TRANSPORT_UNKNOWN_MODE_PAGE:
- cmd->scsi_sense_reason = TCM_UNKNOWN_MODE_PAGE;
- break;
- case PYX_TRANSPORT_WRITE_PROTECTED:
- cmd->scsi_sense_reason = TCM_WRITE_PROTECTED;
+ switch (cmd->scsi_sense_reason) {
+ case TCM_NON_EXISTENT_LUN:
+ case TCM_UNSUPPORTED_SCSI_OPCODE:
+ case TCM_INVALID_CDB_FIELD:
+ case TCM_INVALID_PARAMETER_LIST:
+ case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
+ case TCM_UNKNOWN_MODE_PAGE:
+ case TCM_WRITE_PROTECTED:
+ case TCM_CHECK_CONDITION_ABORT_CMD:
+ case TCM_CHECK_CONDITION_UNIT_ATTENTION:
+ case TCM_CHECK_CONDITION_NOT_READY:
break;
- case PYX_TRANSPORT_RESERVATION_CONFLICT:
+ case TCM_RESERVATION_CONFLICT:
/*
* No SENSE Data payload for this case, set SCSI Status
* and queue the response to $FABRIC_MOD.
if (ret == -EAGAIN || ret == -ENOMEM)
goto queue_full;
goto check_stop;
- case PYX_TRANSPORT_USE_SENSE_REASON:
- /*
- * struct se_cmd->scsi_sense_reason already set
- */
- break;
default:
pr_err("Unknown transport error for CDB 0x%02x: %d\n",
- cmd->t_task_cdb[0],
- cmd->transport_error_status);
+ cmd->t_task_cdb[0], cmd->scsi_sense_reason);
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
break;
}
* transport_send_check_condition_and_sense() after handling
* possible unsoliticied write data payloads.
*/
- if (!sc && !cmd->se_tfo->new_cmd_map)
- transport_new_cmd_failure(cmd);
- else {
- ret = transport_send_check_condition_and_sense(cmd,
- cmd->scsi_sense_reason, 0);
- if (ret == -EAGAIN || ret == -ENOMEM)
- goto queue_full;
- }
+ ret = transport_send_check_condition_and_sense(cmd,
+ cmd->scsi_sense_reason, 0);
+ if (ret == -EAGAIN || ret == -ENOMEM)
+ goto queue_full;
check_stop:
transport_lun_remove_cmd(cmd);
* to allow the passed struct se_cmd list of tasks to the front of the list.
*/
if (cmd->sam_task_attr == MSG_HEAD_TAG) {
- atomic_inc(&cmd->se_dev->dev_hoq_count);
- smp_mb__after_atomic_inc();
pr_debug("Added HEAD_OF_QUEUE for CDB:"
" 0x%02x, se_ordered_id: %u\n",
cmd->t_task_cdb[0],
cmd->se_ordered_id);
return 1;
} else if (cmd->sam_task_attr == MSG_ORDERED_TAG) {
- spin_lock(&cmd->se_dev->ordered_cmd_lock);
- list_add_tail(&cmd->se_ordered_node,
- &cmd->se_dev->ordered_cmd_list);
- spin_unlock(&cmd->se_dev->ordered_cmd_lock);
-
atomic_inc(&cmd->se_dev->dev_ordered_sync);
smp_mb__after_atomic_inc();
{
int add_tasks;
- if (se_dev_check_online(cmd->se_orig_obj_ptr) != 0) {
- cmd->transport_error_status = PYX_TRANSPORT_LU_COMM_FAILURE;
- transport_generic_request_failure(cmd, 0, 1);
+ if (se_dev_check_online(cmd->se_dev) != 0) {
+ cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ transport_generic_request_failure(cmd);
return 0;
}
else
error = dev->transport->do_task(task);
if (error != 0) {
- cmd->transport_error_status = error;
spin_lock_irqsave(&cmd->t_state_lock, flags);
task->task_flags &= ~TF_ACTIVE;
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
atomic_set(&cmd->t_transport_sent, 0);
transport_stop_tasks_for_cmd(cmd);
atomic_inc(&dev->depth_left);
- transport_generic_request_failure(cmd, 0, 1);
+ transport_generic_request_failure(cmd);
}
goto check_depth;
return 0;
}
-void transport_new_cmd_failure(struct se_cmd *se_cmd)
-{
- unsigned long flags;
- /*
- * Any unsolicited data will get dumped for failed command inside of
- * the fabric plugin
- */
- spin_lock_irqsave(&se_cmd->t_state_lock, flags);
- se_cmd->se_cmd_flags |= SCF_SE_CMD_FAILED;
- se_cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
- spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
-}
-
static inline u32 transport_get_sectors_6(
unsigned char *cdb,
struct se_cmd *cmd,
/*
* Everything else assume TYPE_DISK Sector CDB location.
- * Use 8-bit sector value.
+ * Use 8-bit sector value. SBC-3 says:
+ *
+ * A TRANSFER LENGTH field set to zero specifies that 256
+ * logical blocks shall be written. Any other value
+ * specifies the number of logical blocks that shall be
+ * written.
*/
type_disk:
- return (u32)cdb[4];
+ return cdb[4] ? : 256;
}
static inline u32 transport_get_sectors_10(
return -1;
}
-static int
-transport_handle_reservation_conflict(struct se_cmd *cmd)
-{
- cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
- cmd->se_cmd_flags |= SCF_SCSI_RESERVATION_CONFLICT;
- cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT;
- /*
- * For UA Interlock Code 11b, a RESERVATION CONFLICT will
- * establish a UNIT ATTENTION with PREVIOUS RESERVATION
- * CONFLICT STATUS.
- *
- * See spc4r17, section 7.4.6 Control Mode Page, Table 349
- */
- if (cmd->se_sess &&
- cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2)
- core_scsi3_ua_allocate(cmd->se_sess->se_node_acl,
- cmd->orig_fe_lun, 0x2C,
- ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
- return -EINVAL;
-}
-
static inline long long transport_dev_end_lba(struct se_device *dev)
{
return dev->transport->get_blocks(dev) + 1;
*/
if (su_dev->t10_pr.pr_ops.t10_reservation_check(cmd, &pr_reg_type) != 0) {
if (su_dev->t10_pr.pr_ops.t10_seq_non_holder(
- cmd, cdb, pr_reg_type) != 0)
- return transport_handle_reservation_conflict(cmd);
+ cmd, cdb, pr_reg_type) != 0) {
+ cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+ cmd->se_cmd_flags |= SCF_SCSI_RESERVATION_CONFLICT;
+ cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
+ return -EBUSY;
+ }
/*
* This means the CDB is allowed for the SCSI Initiator port
* when said port is *NOT* holding the legacy SPC-2 or
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->t_task_lba = transport_lba_32(cdb);
- cmd->t_tasks_fua = (cdb[1] & 0x8);
+ if (cdb[1] & 0x8)
+ cmd->se_cmd_flags |= SCF_FUA;
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case WRITE_12:
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->t_task_lba = transport_lba_32(cdb);
- cmd->t_tasks_fua = (cdb[1] & 0x8);
+ if (cdb[1] & 0x8)
+ cmd->se_cmd_flags |= SCF_FUA;
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case WRITE_16:
goto out_unsupported_cdb;
size = transport_get_size(sectors, cdb, cmd);
cmd->t_task_lba = transport_lba_64(cdb);
- cmd->t_tasks_fua = (cdb[1] & 0x8);
+ if (cdb[1] & 0x8)
+ cmd->se_cmd_flags |= SCF_FUA;
cmd->se_cmd_flags |= SCF_SCSI_DATA_SG_IO_CDB;
break;
case XDWRITEREAD_10:
if ((cmd->data_direction != DMA_TO_DEVICE) ||
- !(cmd->t_tasks_bidi))
+ !(cmd->se_cmd_flags & SCF_BIDI))
goto out_invalid_cdb_field;
sectors = transport_get_sectors_10(cdb, cmd, §or_ret);
if (sector_ret)
* Setup BIDI XOR callback to be run after I/O completion.
*/
cmd->transport_complete_callback = &transport_xor_callback;
- cmd->t_tasks_fua = (cdb[1] & 0x8);
+ if (cdb[1] & 0x8)
+ cmd->se_cmd_flags |= SCF_FUA;
break;
case VARIABLE_LENGTH_CMD:
service_action = get_unaligned_be16(&cdb[8]);
* completion.
*/
cmd->transport_complete_callback = &transport_xor_callback;
- cmd->t_tasks_fua = (cdb[10] & 0x8);
+ if (cdb[1] & 0x8)
+ cmd->se_cmd_flags |= SCF_FUA;
break;
case WRITE_SAME_32:
sectors = transport_get_sectors_32(cdb, cmd, §or_ret);
" SIMPLE: %u\n", dev->dev_cur_ordered_id,
cmd->se_ordered_id);
} else if (cmd->sam_task_attr == MSG_HEAD_TAG) {
- atomic_dec(&dev->dev_hoq_count);
- smp_mb__after_atomic_dec();
dev->dev_cur_ordered_id++;
pr_debug("Incremented dev_cur_ordered_id: %u for"
" HEAD_OF_QUEUE: %u\n", dev->dev_cur_ordered_id,
cmd->se_ordered_id);
} else if (cmd->sam_task_attr == MSG_ORDERED_TAG) {
- spin_lock(&dev->ordered_cmd_lock);
- list_del(&cmd->se_ordered_node);
atomic_dec(&dev->dev_ordered_sync);
smp_mb__after_atomic_dec();
- spin_unlock(&dev->ordered_cmd_lock);
dev->dev_cur_ordered_id++;
pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED:"
if ((cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB) ||
(cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB)) {
+ /*
+ * Reject SCSI data overflow with map_mem_to_cmd() as incoming
+ * scatterlists already have been set to follow what the fabric
+ * passes for the original expected data transfer length.
+ */
+ if (cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
+ pr_warn("Rejecting SCSI DATA overflow for fabric using"
+ " SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC\n");
+ cmd->se_cmd_flags |= SCF_SCSI_CDB_EXCEPTION;
+ cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
+ return -EINVAL;
+ }
cmd->t_data_sg = sgl;
cmd->t_data_nents = sgl_count;
cmd->data_length) {
ret = transport_generic_get_mem(cmd);
if (ret < 0)
- return ret;
+ goto out_fail;
}
/*
task_cdbs = transport_allocate_control_task(cmd);
}
- if (task_cdbs <= 0)
+ if (task_cdbs < 0)
goto out_fail;
+ else if (!task_cdbs && (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB)) {
+ cmd->t_state = TRANSPORT_COMPLETE;
+ atomic_set(&cmd->t_transport_active, 1);
+ INIT_WORK(&cmd->work, target_complete_ok_work);
+ queue_work(target_completion_wq, &cmd->work);
+ return 0;
+ }
if (set_counts) {
atomic_inc(&cmd->t_fe_count);
else if (ret < 0)
return ret;
- return PYX_TRANSPORT_WRITE_PENDING;
+ return 1;
queue_full:
pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd);
if (cmd->se_tfo->write_pending_status(cmd) != 0) {
atomic_inc(&cmd->t_transport_aborted);
smp_mb__after_atomic_inc();
- cmd->scsi_status = SAM_STAT_TASK_ABORTED;
- transport_new_cmd_failure(cmd);
- return;
}
}
cmd->scsi_status = SAM_STAT_TASK_ABORTED;
struct se_cmd *cmd;
struct se_device *dev = (struct se_device *) param;
- set_user_nice(current, -20);
-
while (!kthread_should_stop()) {
ret = wait_event_interruptible(dev->dev_queue_obj.thread_wq,
atomic_read(&dev->dev_queue_obj.queue_cnt) ||
}
ret = cmd->se_tfo->new_cmd_map(cmd);
if (ret < 0) {
- cmd->transport_error_status = ret;
- transport_generic_request_failure(cmd,
- 0, (cmd->data_direction !=
- DMA_TO_DEVICE));
+ transport_generic_request_failure(cmd);
break;
}
ret = transport_generic_new_cmd(cmd);
if (ret < 0) {
- cmd->transport_error_status = ret;
- transport_generic_request_failure(cmd,
- 0, (cmd->data_direction !=
- DMA_TO_DEVICE));
+ transport_generic_request_failure(cmd);
+ break;
}
break;
case TRANSPORT_PROCESS_WRITE:
lport = ep->lp;
fp = fc_frame_alloc(lport, sizeof(*txrdy));
if (!fp)
- return PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
+ return -ENOMEM; /* Signal QUEUE_FULL */
txrdy = fc_frame_payload_get(fp, sizeof(*txrdy));
memset(txrdy, 0, sizeof(*txrdy));
struct ft_lport_acl *lacl = container_of(wwn,
struct ft_lport_acl, fc_lport_wwn);
- pr_debug("del lport %s\n",
- config_item_name(&wwn->wwn_group.cg_item));
+ pr_debug("del lport %s\n", lacl->name);
mutex_lock(&ft_lport_lock);
list_del(&lacl->list);
mutex_unlock(&ft_lport_lock);
},
{ USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
},
+ /* Motorola H24 HSPA module: */
+ { USB_DEVICE(0x22b8, 0x2d91) }, /* modem */
+ { USB_DEVICE(0x22b8, 0x2d92) }, /* modem + diagnostics */
+ { USB_DEVICE(0x22b8, 0x2d93) }, /* modem + AT port */
+ { USB_DEVICE(0x22b8, 0x2d95) }, /* modem + AT port + diagnostics */
+ { USB_DEVICE(0x22b8, 0x2d96) }, /* modem + NMEA */
+ { USB_DEVICE(0x22b8, 0x2d97) }, /* modem + diagnostics + NMEA */
+ { USB_DEVICE(0x22b8, 0x2d99) }, /* modem + AT port + NMEA */
+ { USB_DEVICE(0x22b8, 0x2d9a) }, /* modem + AT port + diagnostics + NMEA */
+
{ USB_DEVICE(0x0572, 0x1329), /* Hummingbird huc56s (Conexant) */
.driver_info = NO_UNION_NORMAL, /* union descriptor misplaced on
data interface instead of
fsg_common_put(common);
usb_free_descriptors(fsg->function.descriptors);
usb_free_descriptors(fsg->function.hs_descriptors);
+ usb_free_descriptors(fsg->function.ss_descriptors);
kfree(fsg);
}
if (mod->irq_attch)
intenb1 |= ATTCHE;
- if (mod->irq_attch)
+ if (mod->irq_dtch)
intenb1 |= DTCHE;
if (mod->irq_sign)
dev_err(dev, "Failed to create hcd\n");
return -ENOMEM;
}
+ hcd->has_tt = 1; /* for low/full speed */
pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL);
if (!pipe_info) {
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x01) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x02) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x03) },
- { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x08) },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x10) },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x12) },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x13) },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x01) }, /* E398 3G Modem */
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x02) }, /* E398 3G PC UI Interface */
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x02, 0x03) }, /* E398 3G Application Interface */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) },
/*
* Get IO TLB memory from any location.
*/
- xen_io_tlb_start = alloc_bootmem(bytes);
+ xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes));
if (!xen_io_tlb_start) {
m = "Cannot allocate Xen-SWIOTLB buffer!\n";
goto error;
bytes,
xen_io_tlb_nslabs);
if (rc) {
- free_bootmem(__pa(xen_io_tlb_start), bytes);
+ free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
m = "Failed to get contiguous memory for DMA from Xen!\n"\
"You either: don't have the permissions, do not have"\
" enough free memory under 4GB, or the hypervisor memory"\
int idle;
};
+static int __btrfs_start_workers(struct btrfs_workers *workers);
+
/*
* btrfs_start_workers uses kthread_run, which can block waiting for memory
* for a very long time. It will actually throttle on page writeback,
{
struct worker_start *start;
start = container_of(work, struct worker_start, work);
- btrfs_start_workers(start->queue, 1);
+ __btrfs_start_workers(start->queue);
kfree(start);
}
-static int start_new_worker(struct btrfs_workers *queue)
-{
- struct worker_start *start;
- int ret;
-
- start = kzalloc(sizeof(*start), GFP_NOFS);
- if (!start)
- return -ENOMEM;
-
- start->work.func = start_new_worker_func;
- start->queue = queue;
- ret = btrfs_queue_worker(queue->atomic_worker_start, &start->work);
- if (ret)
- kfree(start);
- return ret;
-}
-
/*
* helper function to move a thread onto the idle list after it
* has finished some requests.
static void check_pending_worker_creates(struct btrfs_worker_thread *worker)
{
struct btrfs_workers *workers = worker->workers;
+ struct worker_start *start;
unsigned long flags;
rmb();
if (!workers->atomic_start_pending)
return;
+ start = kzalloc(sizeof(*start), GFP_NOFS);
+ if (!start)
+ return;
+
+ start->work.func = start_new_worker_func;
+ start->queue = workers;
+
spin_lock_irqsave(&workers->lock, flags);
if (!workers->atomic_start_pending)
goto out;
workers->num_workers_starting += 1;
spin_unlock_irqrestore(&workers->lock, flags);
- start_new_worker(workers);
+ btrfs_queue_worker(workers->atomic_worker_start, &start->work);
return;
out:
+ kfree(start);
spin_unlock_irqrestore(&workers->lock, flags);
}
run_ordered_completions(worker->workers, work);
check_pending_worker_creates(worker);
-
+ cond_resched();
}
spin_lock_irq(&worker->lock);
* starts new worker threads. This does not enforce the max worker
* count in case you need to temporarily go past it.
*/
-static int __btrfs_start_workers(struct btrfs_workers *workers,
- int num_workers)
+static int __btrfs_start_workers(struct btrfs_workers *workers)
{
struct btrfs_worker_thread *worker;
int ret = 0;
- int i;
- for (i = 0; i < num_workers; i++) {
- worker = kzalloc(sizeof(*worker), GFP_NOFS);
- if (!worker) {
- ret = -ENOMEM;
- goto fail;
- }
+ worker = kzalloc(sizeof(*worker), GFP_NOFS);
+ if (!worker) {
+ ret = -ENOMEM;
+ goto fail;
+ }
- INIT_LIST_HEAD(&worker->pending);
- INIT_LIST_HEAD(&worker->prio_pending);
- INIT_LIST_HEAD(&worker->worker_list);
- spin_lock_init(&worker->lock);
-
- atomic_set(&worker->num_pending, 0);
- atomic_set(&worker->refs, 1);
- worker->workers = workers;
- worker->task = kthread_run(worker_loop, worker,
- "btrfs-%s-%d", workers->name,
- workers->num_workers + i);
- if (IS_ERR(worker->task)) {
- ret = PTR_ERR(worker->task);
- kfree(worker);
- goto fail;
- }
- spin_lock_irq(&workers->lock);
- list_add_tail(&worker->worker_list, &workers->idle_list);
- worker->idle = 1;
- workers->num_workers++;
- workers->num_workers_starting--;
- WARN_ON(workers->num_workers_starting < 0);
- spin_unlock_irq(&workers->lock);
+ INIT_LIST_HEAD(&worker->pending);
+ INIT_LIST_HEAD(&worker->prio_pending);
+ INIT_LIST_HEAD(&worker->worker_list);
+ spin_lock_init(&worker->lock);
+
+ atomic_set(&worker->num_pending, 0);
+ atomic_set(&worker->refs, 1);
+ worker->workers = workers;
+ worker->task = kthread_run(worker_loop, worker,
+ "btrfs-%s-%d", workers->name,
+ workers->num_workers + 1);
+ if (IS_ERR(worker->task)) {
+ ret = PTR_ERR(worker->task);
+ kfree(worker);
+ goto fail;
}
+ spin_lock_irq(&workers->lock);
+ list_add_tail(&worker->worker_list, &workers->idle_list);
+ worker->idle = 1;
+ workers->num_workers++;
+ workers->num_workers_starting--;
+ WARN_ON(workers->num_workers_starting < 0);
+ spin_unlock_irq(&workers->lock);
+
return 0;
fail:
- btrfs_stop_workers(workers);
+ spin_lock_irq(&workers->lock);
+ workers->num_workers_starting--;
+ spin_unlock_irq(&workers->lock);
return ret;
}
-int btrfs_start_workers(struct btrfs_workers *workers, int num_workers)
+int btrfs_start_workers(struct btrfs_workers *workers)
{
spin_lock_irq(&workers->lock);
- workers->num_workers_starting += num_workers;
+ workers->num_workers_starting++;
spin_unlock_irq(&workers->lock);
- return __btrfs_start_workers(workers, num_workers);
+ return __btrfs_start_workers(workers);
}
/*
struct btrfs_worker_thread *worker;
unsigned long flags;
struct list_head *fallback;
+ int ret;
again:
spin_lock_irqsave(&workers->lock, flags);
workers->num_workers_starting++;
spin_unlock_irqrestore(&workers->lock, flags);
/* we're below the limit, start another worker */
- __btrfs_start_workers(workers, 1);
+ ret = __btrfs_start_workers(workers);
+ if (ret)
+ goto fallback;
goto again;
}
}
/*
* places a struct btrfs_work into the pending queue of one of the kthreads
*/
-int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work)
+void btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work)
{
struct btrfs_worker_thread *worker;
unsigned long flags;
/* don't requeue something already on a list */
if (test_and_set_bit(WORK_QUEUED_BIT, &work->flags))
- goto out;
+ return;
worker = find_worker(workers);
if (workers->ordered) {
if (wake)
wake_up_process(worker->task);
spin_unlock_irqrestore(&worker->lock, flags);
-
-out:
- return 0;
}
char *name;
};
-int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work);
-int btrfs_start_workers(struct btrfs_workers *workers, int num_workers);
+void btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work);
+int btrfs_start_workers(struct btrfs_workers *workers);
int btrfs_stop_workers(struct btrfs_workers *workers);
void btrfs_init_workers(struct btrfs_workers *workers, char *name, int max,
struct btrfs_workers *async_starter);
int btrfs_readpage(struct file *file, struct page *page);
void btrfs_evict_inode(struct inode *inode);
int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc);
-void btrfs_dirty_inode(struct inode *inode, int flags);
+int btrfs_dirty_inode(struct inode *inode);
+int btrfs_update_time(struct file *file);
struct inode *btrfs_alloc_inode(struct super_block *sb);
void btrfs_destroy_inode(struct inode *inode);
int btrfs_drop_inode(struct inode *inode);
* Now if src_rsv == delalloc_block_rsv we'll let it just steal since
* we're accounted for.
*/
- if (!trans->bytes_reserved &&
- src_rsv != &root->fs_info->delalloc_block_rsv) {
+ if (!src_rsv || (!trans->bytes_reserved &&
+ src_rsv != &root->fs_info->delalloc_block_rsv)) {
ret = btrfs_block_rsv_add_noflush(root, dst_rsv, num_bytes);
/*
* Since we're under a transaction reserve_metadata_bytes could
fs_info->endio_meta_write_workers.idle_thresh = 2;
fs_info->readahead_workers.idle_thresh = 2;
- btrfs_start_workers(&fs_info->workers, 1);
- btrfs_start_workers(&fs_info->generic_worker, 1);
- btrfs_start_workers(&fs_info->submit_workers, 1);
- btrfs_start_workers(&fs_info->delalloc_workers, 1);
- btrfs_start_workers(&fs_info->fixup_workers, 1);
- btrfs_start_workers(&fs_info->endio_workers, 1);
- btrfs_start_workers(&fs_info->endio_meta_workers, 1);
- btrfs_start_workers(&fs_info->endio_meta_write_workers, 1);
- btrfs_start_workers(&fs_info->endio_write_workers, 1);
- btrfs_start_workers(&fs_info->endio_freespace_worker, 1);
- btrfs_start_workers(&fs_info->delayed_workers, 1);
- btrfs_start_workers(&fs_info->caching_workers, 1);
- btrfs_start_workers(&fs_info->readahead_workers, 1);
+ /*
+ * btrfs_start_workers can really only fail because of ENOMEM so just
+ * return -ENOMEM if any of these fail.
+ */
+ ret = btrfs_start_workers(&fs_info->workers);
+ ret |= btrfs_start_workers(&fs_info->generic_worker);
+ ret |= btrfs_start_workers(&fs_info->submit_workers);
+ ret |= btrfs_start_workers(&fs_info->delalloc_workers);
+ ret |= btrfs_start_workers(&fs_info->fixup_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_meta_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_meta_write_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_write_workers);
+ ret |= btrfs_start_workers(&fs_info->endio_freespace_worker);
+ ret |= btrfs_start_workers(&fs_info->delayed_workers);
+ ret |= btrfs_start_workers(&fs_info->caching_workers);
+ ret |= btrfs_start_workers(&fs_info->readahead_workers);
+ if (ret) {
+ ret = -ENOMEM;
+ goto fail_sb_buffer;
+ }
fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super);
fs_info->bdi.ra_pages = max(fs_info->bdi.ra_pages,
btrfs_release_path(path);
out:
spin_lock(&block_group->lock);
- if (!ret)
+ if (!ret && dcs == BTRFS_DC_SETUP)
block_group->cache_generation = trans->transid;
block_group->disk_cache_state = dcs;
spin_unlock(&block_group->lock);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_block_rsv *block_rsv = &root->fs_info->delalloc_block_rsv;
u64 to_reserve = 0;
+ u64 csum_bytes;
unsigned nr_extents = 0;
+ int extra_reserve = 0;
int flush = 1;
int ret;
+ /* Need to be holding the i_mutex here if we aren't free space cache */
if (btrfs_is_free_space_inode(root, inode))
flush = 0;
+ else
+ WARN_ON(!mutex_is_locked(&inode->i_mutex));
if (flush && btrfs_transaction_in_commit(root->fs_info))
schedule_timeout(1);
BTRFS_I(inode)->outstanding_extents++;
if (BTRFS_I(inode)->outstanding_extents >
- BTRFS_I(inode)->reserved_extents) {
+ BTRFS_I(inode)->reserved_extents)
nr_extents = BTRFS_I(inode)->outstanding_extents -
BTRFS_I(inode)->reserved_extents;
- BTRFS_I(inode)->reserved_extents += nr_extents;
- }
/*
* Add an item to reserve for updating the inode when we complete the
*/
if (!BTRFS_I(inode)->delalloc_meta_reserved) {
nr_extents++;
- BTRFS_I(inode)->delalloc_meta_reserved = 1;
+ extra_reserve = 1;
}
to_reserve = btrfs_calc_trans_metadata_size(root, nr_extents);
to_reserve += calc_csum_metadata_size(inode, num_bytes, 1);
+ csum_bytes = BTRFS_I(inode)->csum_bytes;
spin_unlock(&BTRFS_I(inode)->lock);
ret = reserve_metadata_bytes(root, block_rsv, to_reserve, flush);
spin_lock(&BTRFS_I(inode)->lock);
dropped = drop_outstanding_extent(inode);
- to_free = calc_csum_metadata_size(inode, num_bytes, 0);
- spin_unlock(&BTRFS_I(inode)->lock);
- to_free += btrfs_calc_trans_metadata_size(root, dropped);
-
/*
- * Somebody could have come in and twiddled with the
- * reservation, so if we have to free more than we would have
- * reserved from this reservation go ahead and release those
- * bytes.
+ * If the inodes csum_bytes is the same as the original
+ * csum_bytes then we know we haven't raced with any free()ers
+ * so we can just reduce our inodes csum bytes and carry on.
+ * Otherwise we have to do the normal free thing to account for
+ * the case that the free side didn't free up its reserve
+ * because of this outstanding reservation.
*/
- to_free -= to_reserve;
+ if (BTRFS_I(inode)->csum_bytes == csum_bytes)
+ calc_csum_metadata_size(inode, num_bytes, 0);
+ else
+ to_free = calc_csum_metadata_size(inode, num_bytes, 0);
+ spin_unlock(&BTRFS_I(inode)->lock);
+ if (dropped)
+ to_free += btrfs_calc_trans_metadata_size(root, dropped);
+
if (to_free)
btrfs_block_rsv_release(root, block_rsv, to_free);
return ret;
}
+ spin_lock(&BTRFS_I(inode)->lock);
+ if (extra_reserve) {
+ BTRFS_I(inode)->delalloc_meta_reserved = 1;
+ nr_extents--;
+ }
+ BTRFS_I(inode)->reserved_extents += nr_extents;
+ spin_unlock(&BTRFS_I(inode)->lock);
+
block_rsv_add_bytes(block_rsv, to_reserve, 1);
return 0;
struct btrfs_root *root = orig_root->fs_info->extent_root;
struct btrfs_free_cluster *last_ptr = NULL;
struct btrfs_block_group_cache *block_group = NULL;
+ struct btrfs_block_group_cache *used_block_group;
int empty_cluster = 2 * 1024 * 1024;
int allowed_chunk_alloc = 0;
int done_chunk_alloc = 0;
struct btrfs_space_info *space_info;
- int last_ptr_loop = 0;
int loop = 0;
int index = 0;
int alloc_type = (data & BTRFS_BLOCK_GROUP_DATA) ?
ideal_cache:
block_group = btrfs_lookup_block_group(root->fs_info,
search_start);
+ used_block_group = block_group;
/*
* we don't want to use the block group if it doesn't match our
* allocation bits, or if its not cached.
u64 offset;
int cached;
+ used_block_group = block_group;
btrfs_get_block_group(block_group);
search_start = block_group->key.objectid;
spin_unlock(&block_group->free_space_ctl->tree_lock);
/*
- * Ok we want to try and use the cluster allocator, so lets look
- * there, unless we are on LOOP_NO_EMPTY_SIZE, since we will
- * have tried the cluster allocator plenty of times at this
- * point and not have found anything, so we are likely way too
- * fragmented for the clustering stuff to find anything, so lets
- * just skip it and let the allocator find whatever block it can
- * find
+ * Ok we want to try and use the cluster allocator, so
+ * lets look there
*/
- if (last_ptr && loop < LOOP_NO_EMPTY_SIZE) {
+ if (last_ptr) {
/*
* the refill lock keeps out other
* people trying to start a new cluster
*/
spin_lock(&last_ptr->refill_lock);
- if (!last_ptr->block_group ||
- last_ptr->block_group->ro ||
- !block_group_bits(last_ptr->block_group, data))
+ used_block_group = last_ptr->block_group;
+ if (used_block_group != block_group &&
+ (!used_block_group ||
+ used_block_group->ro ||
+ !block_group_bits(used_block_group, data))) {
+ used_block_group = block_group;
goto refill_cluster;
+ }
+
+ if (used_block_group != block_group)
+ btrfs_get_block_group(used_block_group);
- offset = btrfs_alloc_from_cluster(block_group, last_ptr,
- num_bytes, search_start);
+ offset = btrfs_alloc_from_cluster(used_block_group,
+ last_ptr, num_bytes, used_block_group->key.objectid);
if (offset) {
/* we have a block, we're done */
spin_unlock(&last_ptr->refill_lock);
goto checks;
}
- spin_lock(&last_ptr->lock);
- /*
- * whoops, this cluster doesn't actually point to
- * this block group. Get a ref on the block
- * group is does point to and try again
- */
- if (!last_ptr_loop && last_ptr->block_group &&
- last_ptr->block_group != block_group &&
- index <=
- get_block_group_index(last_ptr->block_group)) {
-
- btrfs_put_block_group(block_group);
- block_group = last_ptr->block_group;
- btrfs_get_block_group(block_group);
- spin_unlock(&last_ptr->lock);
- spin_unlock(&last_ptr->refill_lock);
-
- last_ptr_loop = 1;
- search_start = block_group->key.objectid;
- /*
- * we know this block group is properly
- * in the list because
- * btrfs_remove_block_group, drops the
- * cluster before it removes the block
- * group from the list
- */
- goto have_block_group;
+ WARN_ON(last_ptr->block_group != used_block_group);
+ if (used_block_group != block_group) {
+ btrfs_put_block_group(used_block_group);
+ used_block_group = block_group;
}
- spin_unlock(&last_ptr->lock);
refill_cluster:
+ BUG_ON(used_block_group != block_group);
+ /* If we are on LOOP_NO_EMPTY_SIZE, we can't
+ * set up a new clusters, so lets just skip it
+ * and let the allocator find whatever block
+ * it can find. If we reach this point, we
+ * will have tried the cluster allocator
+ * plenty of times and not have found
+ * anything, so we are likely way too
+ * fragmented for the clustering stuff to find
+ * anything. */
+ if (loop >= LOOP_NO_EMPTY_SIZE) {
+ spin_unlock(&last_ptr->refill_lock);
+ goto unclustered_alloc;
+ }
+
/*
* this cluster didn't work out, free it and
* start over
*/
btrfs_return_cluster_to_free_space(NULL, last_ptr);
- last_ptr_loop = 0;
-
/* allocate a cluster in this block group */
ret = btrfs_find_space_cluster(trans, root,
block_group, last_ptr,
goto loop;
}
+unclustered_alloc:
offset = btrfs_find_space_for_alloc(block_group, search_start,
num_bytes, empty_size);
/*
search_start = stripe_align(root, offset);
/* move on to the next group */
if (search_start + num_bytes >= search_end) {
- btrfs_add_free_space(block_group, offset, num_bytes);
+ btrfs_add_free_space(used_block_group, offset, num_bytes);
goto loop;
}
/* move on to the next group */
if (search_start + num_bytes >
- block_group->key.objectid + block_group->key.offset) {
- btrfs_add_free_space(block_group, offset, num_bytes);
+ used_block_group->key.objectid + used_block_group->key.offset) {
+ btrfs_add_free_space(used_block_group, offset, num_bytes);
goto loop;
}
ins->offset = num_bytes;
if (offset < search_start)
- btrfs_add_free_space(block_group, offset,
+ btrfs_add_free_space(used_block_group, offset,
search_start - offset);
BUG_ON(offset > search_start);
- ret = btrfs_update_reserved_bytes(block_group, num_bytes,
+ ret = btrfs_update_reserved_bytes(used_block_group, num_bytes,
alloc_type);
if (ret == -EAGAIN) {
- btrfs_add_free_space(block_group, offset, num_bytes);
+ btrfs_add_free_space(used_block_group, offset, num_bytes);
goto loop;
}
ins->offset = num_bytes;
if (offset < search_start)
- btrfs_add_free_space(block_group, offset,
+ btrfs_add_free_space(used_block_group, offset,
search_start - offset);
BUG_ON(offset > search_start);
+ if (used_block_group != block_group)
+ btrfs_put_block_group(used_block_group);
btrfs_put_block_group(block_group);
break;
loop:
failed_cluster_refill = false;
failed_alloc = false;
BUG_ON(index != get_block_group_index(block_group));
+ if (used_block_group != block_group)
+ btrfs_put_block_group(used_block_group);
btrfs_put_block_group(block_group);
}
up_read(&space_info->groups_sem);
node = tree_search(tree, start);
if (!node) {
prealloc = alloc_extent_state_atomic(prealloc);
- if (!prealloc)
- return -ENOMEM;
+ if (!prealloc) {
+ err = -ENOMEM;
+ goto out;
+ }
err = insert_state(tree, prealloc, start, end, &bits);
prealloc = NULL;
BUG_ON(err == -EEXIST);
*/
if (state->start < start) {
prealloc = alloc_extent_state_atomic(prealloc);
- if (!prealloc)
- return -ENOMEM;
+ if (!prealloc) {
+ err = -ENOMEM;
+ goto out;
+ }
err = split_state(tree, state, prealloc, start);
BUG_ON(err == -EEXIST);
prealloc = NULL;
this_end = last_start - 1;
prealloc = alloc_extent_state_atomic(prealloc);
- if (!prealloc)
- return -ENOMEM;
+ if (!prealloc) {
+ err = -ENOMEM;
+ goto out;
+ }
/*
* Avoid to free 'prealloc' if it can be merged with
*/
if (state->start <= end && state->end > end) {
prealloc = alloc_extent_state_atomic(prealloc);
- if (!prealloc)
- return -ENOMEM;
+ if (!prealloc) {
+ err = -ENOMEM;
+ goto out;
+ }
err = split_state(tree, state, prealloc, end + 1);
BUG_ON(err == -EEXIST);
nrptrs = min((iov_iter_count(i) + PAGE_CACHE_SIZE - 1) /
PAGE_CACHE_SIZE, PAGE_CACHE_SIZE /
(sizeof(struct page *)));
+ nrptrs = min(nrptrs, current->nr_dirtied_pause - current->nr_dirtied);
+ nrptrs = max(nrptrs, 8);
pages = kmalloc(nrptrs * sizeof(struct page *), GFP_KERNEL);
if (!pages)
return -ENOMEM;
goto out;
}
- file_update_time(file);
+ err = btrfs_update_time(file);
+ if (err) {
+ mutex_unlock(&inode->i_mutex);
+ goto out;
+ }
BTRFS_I(inode)->sequence++;
start_pos = round_down(pos, root->sectorsize);
#include <linux/falloc.h>
#include <linux/slab.h>
#include <linux/ratelimit.h>
+#include <linux/mount.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
/* insert an orphan item to track this unlinked/truncated file */
if (insert >= 1) {
ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode));
- BUG_ON(ret);
+ BUG_ON(ret && ret != -EEXIST);
}
/* insert an orphan item to track subvolume contains orphan files */
if (ret && ret != -ESTALE)
goto out;
+ if (ret == -ESTALE && root == root->fs_info->tree_root) {
+ struct btrfs_root *dead_root;
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ int is_dead_root = 0;
+
+ /*
+ * this is an orphan in the tree root. Currently these
+ * could come from 2 sources:
+ * a) a snapshot deletion in progress
+ * b) a free space cache inode
+ * We need to distinguish those two, as the snapshot
+ * orphan must not get deleted.
+ * find_dead_roots already ran before us, so if this
+ * is a snapshot deletion, we should find the root
+ * in the dead_roots list
+ */
+ spin_lock(&fs_info->trans_lock);
+ list_for_each_entry(dead_root, &fs_info->dead_roots,
+ root_list) {
+ if (dead_root->root_key.objectid ==
+ found_key.objectid) {
+ is_dead_root = 1;
+ break;
+ }
+ }
+ spin_unlock(&fs_info->trans_lock);
+ if (is_dead_root) {
+ /* prevent this orphan from being found again */
+ key.offset = found_key.objectid - 1;
+ continue;
+ }
+ }
/*
* Inode is already gone but the orphan item is still there,
* kill the orphan item.
continue;
}
nr_truncate++;
+ /*
+ * Need to hold the imutex for reservation purposes, not
+ * a huge deal here but I have a WARN_ON in
+ * btrfs_delalloc_reserve_space to catch offenders.
+ */
+ mutex_lock(&inode->i_mutex);
ret = btrfs_truncate(inode);
+ mutex_unlock(&inode->i_mutex);
} else {
nr_unlink++;
}
u64 hint_byte = 0;
hole_size = last_byte - cur_offset;
- trans = btrfs_start_transaction(root, 2);
+ trans = btrfs_start_transaction(root, 3);
if (IS_ERR(trans)) {
err = PTR_ERR(trans);
break;
cur_offset + hole_size,
&hint_byte, 1);
if (err) {
+ btrfs_update_inode(trans, root, inode);
btrfs_end_transaction(trans, root);
break;
}
0, hole_size, 0, hole_size,
0, 0, 0);
if (err) {
+ btrfs_update_inode(trans, root, inode);
btrfs_end_transaction(trans, root);
break;
}
btrfs_drop_extent_cache(inode, hole_start,
last_byte - 1, 0);
+ btrfs_update_inode(trans, root, inode);
btrfs_end_transaction(trans, root);
}
free_extent_map(em);
static int btrfs_setsize(struct inode *inode, loff_t newsize)
{
+ struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_trans_handle *trans;
loff_t oldsize = i_size_read(inode);
int ret;
return 0;
if (newsize > oldsize) {
- i_size_write(inode, newsize);
- btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL);
truncate_pagecache(inode, oldsize, newsize);
ret = btrfs_cont_expand(inode, oldsize, newsize);
- if (ret) {
- btrfs_setsize(inode, oldsize);
+ if (ret)
return ret;
- }
- mark_inode_dirty(inode);
+ trans = btrfs_start_transaction(root, 1);
+ if (IS_ERR(trans))
+ return PTR_ERR(trans);
+
+ i_size_write(inode, newsize);
+ btrfs_ordered_update_i_size(inode, i_size_read(inode), NULL);
+ ret = btrfs_update_inode(trans, root, inode);
+ btrfs_end_transaction_throttle(trans, root);
} else {
/*
if (attr->ia_valid) {
setattr_copy(inode, attr);
- mark_inode_dirty(inode);
+ err = btrfs_dirty_inode(inode);
- if (attr->ia_valid & ATTR_MODE)
+ if (!err && attr->ia_valid & ATTR_MODE)
err = btrfs_acl_chmod(inode);
}
* FIXME, needs more benchmarking...there are no reasons other than performance
* to keep or drop this code.
*/
-void btrfs_dirty_inode(struct inode *inode, int flags)
+int btrfs_dirty_inode(struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
int ret;
if (BTRFS_I(inode)->dummy_inode)
- return;
+ return 0;
trans = btrfs_join_transaction(root);
- BUG_ON(IS_ERR(trans));
+ if (IS_ERR(trans))
+ return PTR_ERR(trans);
ret = btrfs_update_inode(trans, root, inode);
if (ret && ret == -ENOSPC) {
/* whoops, lets try again with the full transaction */
btrfs_end_transaction(trans, root);
trans = btrfs_start_transaction(root, 1);
- if (IS_ERR(trans)) {
- printk_ratelimited(KERN_ERR "btrfs: fail to "
- "dirty inode %llu error %ld\n",
- (unsigned long long)btrfs_ino(inode),
- PTR_ERR(trans));
- return;
- }
+ if (IS_ERR(trans))
+ return PTR_ERR(trans);
ret = btrfs_update_inode(trans, root, inode);
- if (ret) {
- printk_ratelimited(KERN_ERR "btrfs: fail to "
- "dirty inode %llu error %d\n",
- (unsigned long long)btrfs_ino(inode),
- ret);
- }
}
btrfs_end_transaction(trans, root);
if (BTRFS_I(inode)->delayed_node)
btrfs_balance_delayed_items(root);
+
+ return ret;
+}
+
+/*
+ * This is a copy of file_update_time. We need this so we can return error on
+ * ENOSPC for updating the inode in the case of file write and mmap writes.
+ */
+int btrfs_update_time(struct file *file)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ struct timespec now;
+ int ret;
+ enum { S_MTIME = 1, S_CTIME = 2, S_VERSION = 4 } sync_it = 0;
+
+ /* First try to exhaust all avenues to not sync */
+ if (IS_NOCMTIME(inode))
+ return 0;
+
+ now = current_fs_time(inode->i_sb);
+ if (!timespec_equal(&inode->i_mtime, &now))
+ sync_it = S_MTIME;
+
+ if (!timespec_equal(&inode->i_ctime, &now))
+ sync_it |= S_CTIME;
+
+ if (IS_I_VERSION(inode))
+ sync_it |= S_VERSION;
+
+ if (!sync_it)
+ return 0;
+
+ /* Finally allowed to write? Takes lock. */
+ if (mnt_want_write_file(file))
+ return 0;
+
+ /* Only change inode inside the lock region */
+ if (sync_it & S_VERSION)
+ inode_inc_iversion(inode);
+ if (sync_it & S_CTIME)
+ inode->i_ctime = now;
+ if (sync_it & S_MTIME)
+ inode->i_mtime = now;
+ ret = btrfs_dirty_inode(inode);
+ if (!ret)
+ mark_inode_dirty_sync(inode);
+ mnt_drop_write(file->f_path.mnt);
+ return ret;
}
/*
goto out_unlock;
}
+ /*
+ * If the active LSM wants to access the inode during
+ * d_instantiate it needs these. Smack checks to see
+ * if the filesystem supports xattrs by looking at the
+ * ops vector.
+ */
+
+ inode->i_op = &btrfs_special_inode_operations;
err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
if (err)
drop_inode = 1;
else {
- inode->i_op = &btrfs_special_inode_operations;
init_special_inode(inode, inode->i_mode, rdev);
btrfs_update_inode(trans, root, inode);
}
goto out_unlock;
}
+ /*
+ * If the active LSM wants to access the inode during
+ * d_instantiate it needs these. Smack checks to see
+ * if the filesystem supports xattrs by looking at the
+ * ops vector.
+ */
+ inode->i_fop = &btrfs_file_operations;
+ inode->i_op = &btrfs_file_inode_operations;
+
err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
if (err)
drop_inode = 1;
else {
inode->i_mapping->a_ops = &btrfs_aops;
inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
- inode->i_fop = &btrfs_file_operations;
- inode->i_op = &btrfs_file_inode_operations;
BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
}
out_unlock:
u64 page_start;
u64 page_end;
+ /* Need this to keep space reservations serialized */
+ mutex_lock(&inode->i_mutex);
ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE);
+ mutex_unlock(&inode->i_mutex);
+ if (!ret)
+ ret = btrfs_update_time(vma->vm_file);
if (ret) {
if (ret == -ENOMEM)
ret = VM_FAULT_OOM;
/* Just need the 1 for updating the inode */
trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans)) {
- err = PTR_ERR(trans);
- goto out;
+ ret = err = PTR_ERR(trans);
+ trans = NULL;
+ break;
}
}
goto out_unlock;
}
+ /*
+ * If the active LSM wants to access the inode during
+ * d_instantiate it needs these. Smack checks to see
+ * if the filesystem supports xattrs by looking at the
+ * ops vector.
+ */
+ inode->i_fop = &btrfs_file_operations;
+ inode->i_op = &btrfs_file_inode_operations;
+
err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
if (err)
drop_inode = 1;
else {
inode->i_mapping->a_ops = &btrfs_aops;
inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
- inode->i_fop = &btrfs_file_operations;
- inode->i_op = &btrfs_file_inode_operations;
BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
}
if (drop_inode)
.follow_link = page_follow_link_light,
.put_link = page_put_link,
.getattr = btrfs_getattr,
+ .setattr = btrfs_setattr,
.permission = btrfs_permission,
.setxattr = btrfs_setxattr,
.getxattr = btrfs_getxattr,
trans = btrfs_join_transaction(root);
BUG_ON(IS_ERR(trans));
+ btrfs_update_iflags(inode);
+ inode->i_ctime = CURRENT_TIME;
ret = btrfs_update_inode(trans, root, inode);
BUG_ON(ret);
- btrfs_update_iflags(inode);
- inode->i_ctime = CURRENT_TIME;
btrfs_end_transaction(trans, root);
mnt_drop_write(file->f_path.mnt);
return 0;
file_end = (isize - 1) >> PAGE_CACHE_SHIFT;
+ mutex_lock(&inode->i_mutex);
ret = btrfs_delalloc_reserve_space(inode,
num_pages << PAGE_CACHE_SHIFT);
+ mutex_unlock(&inode->i_mutex);
if (ret)
return ret;
again:
index = (cluster->start - offset) >> PAGE_CACHE_SHIFT;
last_index = (cluster->end - offset) >> PAGE_CACHE_SHIFT;
while (index <= last_index) {
+ mutex_lock(&inode->i_mutex);
ret = btrfs_delalloc_reserve_metadata(inode, PAGE_CACHE_SIZE);
+ mutex_unlock(&inode->i_mutex);
if (ret)
goto out;
static noinline_for_stack int scrub_workers_get(struct btrfs_root *root)
{
struct btrfs_fs_info *fs_info = root->fs_info;
+ int ret = 0;
mutex_lock(&fs_info->scrub_lock);
if (fs_info->scrub_workers_refcnt == 0) {
btrfs_init_workers(&fs_info->scrub_workers, "scrub",
fs_info->thread_pool_size, &fs_info->generic_worker);
fs_info->scrub_workers.idle_thresh = 4;
- btrfs_start_workers(&fs_info->scrub_workers, 1);
+ ret = btrfs_start_workers(&fs_info->scrub_workers);
+ if (ret)
+ goto out;
}
++fs_info->scrub_workers_refcnt;
+out:
mutex_unlock(&fs_info->scrub_lock);
- return 0;
+ return ret;
}
static noinline_for_stack void scrub_workers_put(struct btrfs_root *root)
#include <linux/slab.h>
#include <linux/cleancache.h>
#include <linux/mnt_namespace.h>
+#include <linux/ratelimit.h>
#include "compat.h"
#include "delayed-inode.h"
#include "ctree.h"
u64 avail_space;
u64 used_space;
u64 min_stripe_size;
- int min_stripes = 1;
+ int min_stripes = 1, num_stripes = 1;
int i = 0, nr_devices;
int ret;
/* calc min stripe number for data space alloction */
type = btrfs_get_alloc_profile(root, 1);
- if (type & BTRFS_BLOCK_GROUP_RAID0)
+ if (type & BTRFS_BLOCK_GROUP_RAID0) {
min_stripes = 2;
- else if (type & BTRFS_BLOCK_GROUP_RAID1)
+ num_stripes = nr_devices;
+ } else if (type & BTRFS_BLOCK_GROUP_RAID1) {
min_stripes = 2;
- else if (type & BTRFS_BLOCK_GROUP_RAID10)
+ num_stripes = 2;
+ } else if (type & BTRFS_BLOCK_GROUP_RAID10) {
min_stripes = 4;
+ num_stripes = 4;
+ }
if (type & BTRFS_BLOCK_GROUP_DUP)
min_stripe_size = 2 * BTRFS_STRIPE_LEN;
i = nr_devices - 1;
avail_space = 0;
while (nr_devices >= min_stripes) {
+ if (num_stripes > nr_devices)
+ num_stripes = nr_devices;
+
if (devices_info[i].max_avail >= min_stripe_size) {
int j;
u64 alloc_size;
- avail_space += devices_info[i].max_avail * min_stripes;
+ avail_space += devices_info[i].max_avail * num_stripes;
alloc_size = devices_info[i].max_avail;
- for (j = i + 1 - min_stripes; j <= i; j++)
+ for (j = i + 1 - num_stripes; j <= i; j++)
devices_info[j].max_avail -= alloc_size;
}
i--;
return 0;
}
+static void btrfs_fs_dirty_inode(struct inode *inode, int flags)
+{
+ int ret;
+
+ ret = btrfs_dirty_inode(inode);
+ if (ret)
+ printk_ratelimited(KERN_ERR "btrfs: fail to dirty inode %Lu "
+ "error %d\n", btrfs_ino(inode), ret);
+}
+
static const struct super_operations btrfs_super_ops = {
.drop_inode = btrfs_drop_inode,
.evict_inode = btrfs_evict_inode,
.sync_fs = btrfs_sync_fs,
.show_options = btrfs_show_options,
.write_inode = btrfs_write_inode,
- .dirty_inode = btrfs_dirty_inode,
+ .dirty_inode = btrfs_fs_dirty_inode,
.alloc_inode = btrfs_alloc_inode,
.destroy_inode = btrfs_destroy_inode,
.statfs = btrfs_statfs,
btrfs_requeue_work(&device->work);
goto done;
}
+ /* unplug every 64 requests just for good measure */
+ if (batch_run % 64 == 0) {
+ blk_finish_plug(&plug);
+ blk_start_plug(&plug);
+ sync_pending = 0;
+ }
}
cond_resched();
if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding)
return -EINVAL;
- bdev = blkdev_get_by_path(device_path, FMODE_EXCL,
+ bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
root->fs_info->bdev_holder);
if (IS_ERR(bdev))
return PTR_ERR(bdev);
*/
if (atomic_read(&bbio->error) > bbio->max_errors) {
err = -EIO;
- } else if (err) {
+ } else {
/*
* this bio is actually up to date, we didn't
* go over the max number of errors
snapc = ceph_get_snap_context(ci->i_snap_realm->cached_context);
/* dirty the head */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_head_snapc == NULL)
ci->i_head_snapc = ceph_get_snap_context(snapc);
++ci->i_wrbuffer_ref_head;
ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref_head-1,
ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head,
snapc, snapc->seq, snapc->num_snaps);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
/* now adjust page */
spin_lock_irq(&mapping->tree_lock);
struct ceph_snap_context *snapc = NULL;
struct ceph_cap_snap *capsnap = NULL;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
dout(" cap_snap %p snapc %p has %d dirty pages\n", capsnap,
capsnap->context, capsnap->dirty_pages);
dout(" head snapc %p has %d dirty pages\n",
snapc, ci->i_wrbuffer_ref_head);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return snapc;
}
/*
* Find ceph_cap for given mds, if any.
*
- * Called with i_lock held.
+ * Called with i_ceph_lock held.
*/
static struct ceph_cap *__get_cap_for_mds(struct ceph_inode_info *ci, int mds)
{
{
struct ceph_cap *cap;
- spin_lock(&ci->vfs_inode.i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = __get_cap_for_mds(ci, mds);
- spin_unlock(&ci->vfs_inode.i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return cap;
}
int ceph_get_cap_mds(struct inode *inode)
{
+ struct ceph_inode_info *ci = ceph_inode(inode);
int mds;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
mds = __ceph_get_cap_mds(ceph_inode(inode));
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return mds;
}
/*
- * Called under i_lock.
+ * Called under i_ceph_lock.
*/
static void __insert_cap_node(struct ceph_inode_info *ci,
struct ceph_cap *new)
*
* If I_FLUSH is set, leave the inode at the front of the list.
*
- * Caller holds i_lock
+ * Caller holds i_ceph_lock
* -> we take mdsc->cap_delay_lock
*/
static void __cap_delay_requeue(struct ceph_mds_client *mdsc,
/*
* Cancel delayed work on cap.
*
- * Caller must hold i_lock.
+ * Caller must hold i_ceph_lock.
*/
static void __cap_delay_cancel(struct ceph_mds_client *mdsc,
struct ceph_inode_info *ci)
wanted |= ceph_caps_for_mode(fmode);
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = __get_cap_for_mds(ci, mds);
if (!cap) {
if (new_cap) {
cap = new_cap;
new_cap = NULL;
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
new_cap = get_cap(mdsc, caps_reservation);
if (new_cap == NULL)
return -ENOMEM;
if (fmode >= 0)
__ceph_get_fmode(ci, fmode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
wake_up_all(&ci->i_cap_wq);
return 0;
}
struct rb_node *p;
int ret = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) {
cap = rb_entry(p, struct ceph_cap, ci_node);
if (__cap_is_valid(cap) &&
break;
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("ceph_caps_revoking %p %s = %d\n", inode,
ceph_cap_string(mask), ret);
return ret;
}
/*
- * called under i_lock
+ * called under i_ceph_lock
*/
static int __ceph_is_any_caps(struct ceph_inode_info *ci)
{
/*
* Remove a cap. Take steps to deal with a racing iterate_session_caps.
*
- * caller should hold i_lock.
+ * caller should hold i_ceph_lock.
* caller will not hold session s_mutex if called from destroy_inode.
*/
void __ceph_remove_cap(struct ceph_cap *cap)
/*
* Queue cap releases when an inode is dropped from our cache. Since
- * inode is about to be destroyed, there is no need for i_lock.
+ * inode is about to be destroyed, there is no need for i_ceph_lock.
*/
void ceph_queue_caps_release(struct inode *inode)
{
/*
* Send a cap msg on the given inode. Update our caps state, then
- * drop i_lock and send the message.
+ * drop i_ceph_lock and send the message.
*
* Make note of max_size reported/requested from mds, revoked caps
* that have now been implemented.
* Return non-zero if delayed release, or we experienced an error
* such that the caller should requeue + retry later.
*
- * called with i_lock, then drops it.
+ * called with i_ceph_lock, then drops it.
* caller should hold snap_rwsem (read), s_mutex.
*/
static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
int op, int used, int want, int retain, int flushing,
unsigned *pflush_tid)
- __releases(cap->ci->vfs_inode->i_lock)
+ __releases(cap->ci->i_ceph_lock)
{
struct ceph_inode_info *ci = cap->ci;
struct inode *inode = &ci->vfs_inode;
xattr_version = ci->i_xattrs.version;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
ret = send_cap_msg(session, ceph_vino(inode).ino, cap_id,
op, keep, want, flushing, seq, flush_tid, issue_seq, mseq,
* Unless @again is true, skip cap_snaps that were already sent to
* the MDS (i.e., during this session).
*
- * Called under i_lock. Takes s_mutex as needed.
+ * Called under i_ceph_lock. Takes s_mutex as needed.
*/
void __ceph_flush_snaps(struct ceph_inode_info *ci,
struct ceph_mds_session **psession,
int again)
- __releases(ci->vfs_inode->i_lock)
- __acquires(ci->vfs_inode->i_lock)
+ __releases(ci->i_ceph_lock)
+ __acquires(ci->i_ceph_lock)
{
struct inode *inode = &ci->vfs_inode;
int mds;
session = NULL;
}
if (!session) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
mutex_lock(&mdsc->mutex);
session = __ceph_lookup_mds_session(mdsc, mds);
mutex_unlock(&mdsc->mutex);
* deletion or migration. retry, and we'll
* get a better @mds value next time.
*/
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
goto retry;
}
list_del_init(&capsnap->flushing_item);
list_add_tail(&capsnap->flushing_item,
&session->s_cap_snaps_flushing);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
inode, capsnap, capsnap->follows, capsnap->flush_tid);
next_follows = capsnap->follows + 1;
ceph_put_cap_snap(capsnap);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
goto retry;
}
static void ceph_flush_snaps(struct ceph_inode_info *ci)
{
- struct inode *inode = &ci->vfs_inode;
-
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__ceph_flush_snaps(ci, NULL, 0);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
* Add dirty inode to the flushing list. Assigned a seq number so we
* can wait for caps to flush without starving.
*
- * Called under i_lock.
+ * Called under i_ceph_lock.
*/
static int __mark_caps_flushing(struct inode *inode,
struct ceph_mds_session *session)
struct ceph_inode_info *ci = ceph_inode(inode);
u32 invalidating_gen = ci->i_rdcache_gen;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
invalidate_mapping_pages(&inode->i_data, 0, -1);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (inode->i_data.nrpages == 0 &&
invalidating_gen == ci->i_rdcache_gen) {
if (mdsc->stopping)
is_delayed = 1;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_FLUSH)
flags |= CHECK_CAPS_FLUSH;
__ceph_flush_snaps(ci, &session, 0);
goto retry_locked;
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
retry_locked:
file_wanted = __ceph_caps_file_wanted(ci);
used = __ceph_caps_used(ci);
if (mutex_trylock(&session->s_mutex) == 0) {
dout("inverting session/ino locks on %p\n",
session);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (took_snap_rwsem) {
up_read(&mdsc->snap_rwsem);
took_snap_rwsem = 0;
if (down_read_trylock(&mdsc->snap_rwsem) == 0) {
dout("inverting snap/in locks on %p\n",
inode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
down_read(&mdsc->snap_rwsem);
took_snap_rwsem = 1;
goto retry;
mds = cap->mds; /* remember mds, so we don't repeat */
sent++;
- /* __send_cap drops i_lock */
+ /* __send_cap drops i_ceph_lock */
delayed += __send_cap(mdsc, cap, CEPH_CAP_OP_UPDATE, used, want,
retain, flushing, NULL);
- goto retry; /* retake i_lock and restart our cap scan. */
+ goto retry; /* retake i_ceph_lock and restart our cap scan. */
}
/*
else if (!is_delayed || force_requeue)
__cap_delay_requeue(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (queue_invalidate)
ceph_queue_invalidate(inode);
int flushing = 0;
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_ceph_flags & CEPH_I_NOFLUSH) {
dout("try_flush_caps skipping %p I_NOFLUSH set\n", inode);
goto out;
int delayed;
if (!session) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
session = cap->session;
mutex_lock(&session->s_mutex);
goto retry;
flushing = __mark_caps_flushing(inode, session);
- /* __send_cap drops i_lock */
+ /* __send_cap drops i_ceph_lock */
delayed = __send_cap(mdsc, cap, CEPH_CAP_OP_FLUSH, used, want,
cap->issued | cap->implemented, flushing,
flush_tid);
if (!delayed)
goto out_unlocked;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
}
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
out_unlocked:
if (session && unlock_session)
mutex_unlock(&session->s_mutex);
struct ceph_inode_info *ci = ceph_inode(inode);
int i, ret = 1;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
for (i = 0; i < CEPH_CAP_BITS; i++)
if ((ci->i_flushing_caps & (1 << i)) &&
ci->i_cap_flush_tid[i] <= tid) {
ret = 0;
break;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ret;
}
struct ceph_mds_client *mdsc =
ceph_sb_to_client(inode->i_sb)->mdsc;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (__ceph_caps_dirty(ci))
__cap_delay_requeue_front(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
return err;
}
struct inode *inode = &ci->vfs_inode;
struct ceph_cap *cap;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
if (cap && cap->session == session) {
dout("kick_flushing_caps %p cap %p capsnap %p\n", inode,
pr_err("%p auth cap %p not mds%d ???\n", inode,
cap, session->s_mds);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
}
struct ceph_cap *cap;
int delayed = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
if (cap && cap->session == session) {
dout("kick_flushing_caps %p cap %p %s\n", inode,
cap->issued | cap->implemented,
ci->i_flushing_caps, NULL);
if (delayed) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
} else {
pr_err("%p auth cap %p not mds%d ???\n", inode,
cap, session->s_mds);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
}
}
struct ceph_cap *cap;
int delayed = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = ci->i_auth_cap;
dout("kick_flushing_inode_caps %p flushing %s flush_seq %lld\n", inode,
ceph_cap_string(ci->i_flushing_caps), ci->i_cap_flush_seq);
cap->issued | cap->implemented,
ci->i_flushing_caps, NULL);
if (delayed) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__cap_delay_requeue(mdsc, ci);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
}
* Take references to capabilities we hold, so that we don't release
* them to the MDS prematurely.
*
- * Protected by i_lock.
+ * Protected by i_ceph_lock.
*/
static void __take_cap_refs(struct ceph_inode_info *ci, int got)
{
dout("get_cap_refs %p need %s want %s\n", inode,
ceph_cap_string(need), ceph_cap_string(want));
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
/* make sure file is actually open */
file_wanted = __ceph_caps_file_wanted(ci);
ceph_cap_string(have), ceph_cap_string(need));
}
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("get_cap_refs %p ret %d got %s\n", inode,
ret, ceph_cap_string(*got));
return ret;
int check = 0;
/* do we need to explicitly request a larger max_size? */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if ((endoff >= ci->i_max_size ||
endoff > (inode->i_size << 1)) &&
endoff > ci->i_wanted_max_size) {
ci->i_wanted_max_size = endoff;
check = 1;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (check)
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
}
*/
void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps)
{
- spin_lock(&ci->vfs_inode.i_lock);
+ spin_lock(&ci->i_ceph_lock);
__take_cap_refs(ci, caps);
- spin_unlock(&ci->vfs_inode.i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
int last = 0, put = 0, flushsnaps = 0, wake = 0;
struct ceph_cap_snap *capsnap;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (had & CEPH_CAP_PIN)
--ci->i_pin_ref;
if (had & CEPH_CAP_FILE_RD)
}
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had),
last ? " last" : "", put ? " put" : "");
int found = 0;
struct ceph_cap_snap *capsnap = NULL;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_wrbuffer_ref -= nr;
last = !ci->i_wrbuffer_ref;
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (last) {
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
* Handle a cap GRANT message from the MDS. (Note that a GRANT may
* actually be a revocation if it specifies a smaller cap set.)
*
- * caller holds s_mutex and i_lock, we drop both.
+ * caller holds s_mutex and i_ceph_lock, we drop both.
*
* return value:
* 0 - ok
struct ceph_mds_session *session,
struct ceph_cap *cap,
struct ceph_buffer *xattr_buf)
- __releases(inode->i_lock)
+ __releases(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
int mds = session->s_mds;
}
BUG_ON(cap->issued & ~cap->implemented);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (writeback)
/*
* queue inode for writeback: we can't actually call
struct ceph_mds_caps *m,
struct ceph_mds_session *session,
struct ceph_cap *cap)
- __releases(inode->i_lock)
+ __releases(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
wake_up_all(&ci->i_cap_wq);
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (drop)
iput(inode);
}
dout("handle_cap_flushsnap_ack inode %p ci %p mds%d follows %lld\n",
inode, ci, session->s_mds, follows);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
if (capsnap->follows == follows) {
if (capsnap->flush_tid != flush_tid) {
capsnap, capsnap->follows);
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (drop)
iput(inode);
}
static void handle_cap_trunc(struct inode *inode,
struct ceph_mds_caps *trunc,
struct ceph_mds_session *session)
- __releases(inode->i_lock)
+ __releases(ci->i_ceph_lock)
{
struct ceph_inode_info *ci = ceph_inode(inode);
int mds = session->s_mds;
inode, mds, seq, truncate_size, truncate_seq);
queue_trunc = ceph_fill_file_size(inode, issued,
truncate_seq, truncate_size, size);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (queue_trunc)
ceph_queue_vmtruncate(inode);
dout("handle_cap_export inode %p ci %p mds%d mseq %d\n",
inode, ci, mds, mseq);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
/* make sure we haven't seen a higher mseq */
for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) {
}
/* else, we already released it */
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
up_read(&mdsc->snap_rwsem);
/* make sure we re-request max_size, if necessary */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_requested_max_size = 0;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
struct ceph_mds_client *mdsc = session->s_mdsc;
struct super_block *sb = mdsc->fsc->sb;
struct inode *inode;
+ struct ceph_inode_info *ci;
struct ceph_cap *cap;
struct ceph_mds_caps *h;
int mds = session->s_mds;
/* lookup ino */
inode = ceph_find_inode(sb, vino);
+ ci = ceph_inode(inode);
dout(" op %s ino %llx.%llx inode %p\n", ceph_cap_op_name(op), vino.ino,
vino.snap, inode);
if (!inode) {
}
/* the rest require a cap */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = __get_cap_for_mds(ceph_inode(inode), mds);
if (!cap) {
dout(" no cap on %p ino %llx.%llx from mds%d\n",
inode, ceph_ino(inode), ceph_snap(inode), mds);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
goto flush_cap_releases;
}
- /* note that each of these drops i_lock for us */
+ /* note that each of these drops i_ceph_lock for us */
switch (op) {
case CEPH_CAP_OP_REVOKE:
case CEPH_CAP_OP_GRANT:
break;
default:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
pr_err("ceph_handle_caps: unknown cap op %d %s\n", op,
ceph_cap_op_name(op));
}
struct inode *inode = &ci->vfs_inode;
int last = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout("put_fmode %p fmode %d %d -> %d\n", inode, fmode,
ci->i_nr_by_mode[fmode], ci->i_nr_by_mode[fmode]-1);
BUG_ON(ci->i_nr_by_mode[fmode] == 0);
if (--ci->i_nr_by_mode[fmode] == 0)
last++;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (last && ci->i_vino.snap == CEPH_NOSNAP)
ceph_check_caps(ci, 0, NULL);
int used, dirty;
int ret = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
used = __ceph_caps_used(ci);
dirty = __ceph_caps_dirty(ci);
inode, cap, ceph_cap_string(cap->issued));
}
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ret;
}
/*
* force an record for the directory caps if we have a dentry lease.
- * this is racy (can't take i_lock and d_lock together), but it
+ * this is racy (can't take i_ceph_lock and d_lock together), but it
* doesn't have to be perfect; the mds will revoke anything we don't
* release.
*/
}
/* can we use the dcache? */
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if ((filp->f_pos == 2 || fi->dentry) &&
!ceph_test_mount_opt(fsc, NOASYNCREADDIR) &&
ceph_snap(inode) != CEPH_SNAPDIR &&
ceph_dir_test_complete(inode) &&
__ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1)) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
err = __dcache_readdir(filp, dirent, filldir);
if (err != -EAGAIN)
return err;
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
if (fi->dentry) {
err = note_last_dentry(fi, fi->dentry->d_name.name,
* were released during the whole readdir, and we should have
* the complete dir contents in our cache.
*/
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_release_count == fi->dir_release_count) {
ceph_dir_set_complete(inode);
ci->i_max_offset = filp->f_pos;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("readdir %p filp %p done.\n", inode, filp);
return 0;
struct ceph_inode_info *ci = ceph_inode(dir);
struct ceph_dentry_info *di = ceph_dentry(dentry);
- spin_lock(&dir->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout(" dir %p flags are %d\n", dir, ci->i_ceph_flags);
if (strncmp(dentry->d_name.name,
fsc->mount_options->snapdir_name,
!is_root_ceph_dentry(dir, dentry) &&
ceph_dir_test_complete(dir) &&
(__ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1))) {
- spin_unlock(&dir->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout(" dir %p complete, -ENOENT\n", dir);
d_add(dentry, NULL);
di->lease_shared_gen = ci->i_shared_gen;
return NULL;
}
- spin_unlock(&dir->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
op = ceph_snap(dir) == CEPH_SNAPDIR ?
struct ceph_inode_info *ci = ceph_inode(inode);
int drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (inode->i_nlink == 1) {
drop |= ~(__ceph_caps_wanted(ci) | CEPH_CAP_PIN);
ci->i_ceph_flags |= CEPH_I_NODELAY;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return drop;
}
struct ceph_dentry_info *di = ceph_dentry(dentry);
int valid = 0;
- spin_lock(&dir->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_shared_gen == di->lease_shared_gen)
valid = __ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1);
- spin_unlock(&dir->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("dir_lease_is_valid dir %p v%u dentry %p v%u = %d\n",
dir, (unsigned)ci->i_shared_gen, dentry,
(unsigned)di->lease_shared_gen, valid);
/* trivially open snapdir */
if (ceph_snap(inode) == CEPH_SNAPDIR) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__ceph_get_fmode(ci, fmode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ceph_init_file(inode, file, fmode);
}
* write) or any MDS (for read). Update wanted set
* asynchronously.
*/
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (__ceph_is_any_real_caps(ci) &&
(((fmode & CEPH_FILE_MODE_WR) == 0) || ci->i_auth_cap)) {
int mds_wanted = __ceph_caps_mds_wanted(ci);
inode, fmode, ceph_cap_string(wanted),
ceph_cap_string(issued));
__ceph_get_fmode(ci, fmode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
/* adjust wanted? */
if ((issued & wanted) != wanted &&
} else if (ceph_snap(inode) != CEPH_NOSNAP &&
(ci->i_snap_caps & wanted) == wanted) {
__ceph_get_fmode(ci, fmode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ceph_init_file(inode, file, fmode);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("open fmode %d wants %s\n", fmode, ceph_cap_string(wanted));
req = prepare_open_request(inode->i_sb, flags, 0);
*/
int dirty;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
ceph_put_cap_refs(ci, got);
ret = generic_file_aio_write(iocb, iov, nr_segs, pos);
if (ret >= 0) {
int dirty;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (dirty)
__mark_inode_dirty(inode, dirty);
}
mutex_lock(&inode->i_mutex);
__ceph_do_pending_vmtruncate(inode);
- if (origin != SEEK_CUR || origin != SEEK_SET) {
+
+ if (origin == SEEK_END || origin == SEEK_DATA || origin == SEEK_HOLE) {
ret = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE);
if (ret < 0) {
offset = ret;
dout("alloc_inode %p\n", &ci->vfs_inode);
+ spin_lock_init(&ci->i_ceph_lock);
+
ci->i_version = 0;
ci->i_time_warp_seq = 0;
ci->i_ceph_flags = 0;
iinfo->xattr_len);
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
/*
* provided version will be odd if inode value is projected,
char *sym;
BUG_ON(symlen != inode->i_size);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
err = -ENOMEM;
sym = kmalloc(symlen+1, GFP_NOFS);
memcpy(sym, iinfo->symlink, symlen);
sym[symlen] = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (!ci->i_symlink)
ci->i_symlink = sym;
else
}
no_change:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
/* queue truncate if we saw i_size decrease */
if (queue_trunc)
info->cap.flags,
caps_reservation);
} else {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout(" %p got snap_caps %s\n", inode,
ceph_cap_string(le32_to_cpu(info->cap.caps)));
ci->i_snap_caps |= le32_to_cpu(info->cap.caps);
if (cap_fmode >= 0)
__ceph_get_fmode(ci, cap_fmode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
} else if (cap_fmode >= 0) {
pr_warning("mds issued no caps on %llx.%llx\n",
{
struct dentry *dir = dn->d_parent;
struct inode *inode = dir->d_inode;
+ struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_dentry_info *di;
BUG_ON(!inode);
di = ceph_dentry(dn);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (!ceph_dir_test_complete(inode)) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return;
}
di->offset = ceph_inode(inode)->i_max_offset++;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
spin_lock(&dir->d_lock);
spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED);
struct ceph_inode_info *ci = ceph_inode(inode);
int ret = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout("set_size %p %llu -> %llu\n", inode, inode->i_size, size);
inode->i_size = size;
inode->i_blocks = (size + (1 << 9) - 1) >> 9;
(ci->i_reported_size << 1) < ci->i_max_size)
ret = 1;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return ret;
}
u32 orig_gen;
int check = 0;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout("invalidate_pages %p gen %d revoking %d\n", inode,
ci->i_rdcache_gen, ci->i_rdcache_revoking);
if (ci->i_rdcache_revoking != ci->i_rdcache_gen) {
/* nevermind! */
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
goto out;
}
orig_gen = ci->i_rdcache_gen;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
truncate_inode_pages(&inode->i_data, 0);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (orig_gen == ci->i_rdcache_gen &&
orig_gen == ci->i_rdcache_revoking) {
dout("invalidate_pages %p gen %d successful\n", inode,
inode, orig_gen, ci->i_rdcache_gen,
ci->i_rdcache_revoking);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (check)
ceph_check_caps(ci, 0, NULL);
int wrbuffer_refs, wake = 0;
retry:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_truncate_pending == 0) {
dout("__do_pending_vmtruncate %p none pending\n", inode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return;
}
if (ci->i_wrbuffer_ref_head < ci->i_wrbuffer_ref) {
dout("__do_pending_vmtruncate %p flushing snaps first\n",
inode);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
filemap_write_and_wait_range(&inode->i_data, 0,
inode->i_sb->s_maxbytes);
goto retry;
wrbuffer_refs = ci->i_wrbuffer_ref;
dout("__do_pending_vmtruncate %p (%d) to %lld\n", inode,
ci->i_truncate_pending, to);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
truncate_inode_pages(inode->i_mapping, to);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_truncate_pending--;
if (ci->i_truncate_pending == 0)
wake = 1;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (wrbuffer_refs == 0)
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
if (IS_ERR(req))
return PTR_ERR(req);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
issued = __ceph_caps_issued(ci, NULL);
dout("setattr %p issued %s\n", inode, ceph_cap_string(issued));
}
release &= issued;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (inode_dirty_flags)
__mark_inode_dirty(inode, inode_dirty_flags);
__ceph_do_pending_vmtruncate(inode);
return err;
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
ceph_mdsc_put_request(req);
return err;
}
struct ceph_inode_info *ci = ceph_inode(inode);
if ((fi->fmode & CEPH_FILE_MODE_LAZY) == 0) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_nr_by_mode[fi->fmode]--;
fi->fmode |= CEPH_FILE_MODE_LAZY;
ci->i_nr_by_mode[fi->fmode]++;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout("ioctl_layzio: file %p marked lazy\n", file);
ceph_check_caps(ci, 0, NULL);
}
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap = NULL;
if (mode == USE_AUTH_MDS)
cap = ci->i_auth_cap;
if (!cap && !RB_EMPTY_ROOT(&ci->i_caps))
cap = rb_entry(rb_first(&ci->i_caps), struct ceph_cap, ci_node);
if (!cap) {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
goto random;
}
mds = cap->session->s_mds;
dout("choose_mds %p %llx.%llx mds%d (%scap %p)\n",
inode, ceph_vinop(inode), mds,
cap == ci->i_auth_cap ? "auth " : "", cap);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return mds;
random:
dout("removing cap %p, ci is %p, inode is %p\n",
cap, ci, &ci->vfs_inode);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__ceph_remove_cap(cap);
if (!__ceph_is_any_real_caps(ci)) {
struct ceph_mds_client *mdsc =
}
spin_unlock(&mdsc->cap_dirty_lock);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
while (drop--)
iput(inode);
return 0;
wake_up_all(&ci->i_cap_wq);
if (arg) {
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_wanted_max_size = 0;
ci->i_requested_max_size = 0;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
return 0;
}
if (session->s_trim_caps <= 0)
return -1;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
mine = cap->issued | cap->implemented;
used = __ceph_caps_used(ci);
oissued = __ceph_caps_issued_other(ci, cap);
__ceph_remove_cap(cap);
} else {
/* try to drop referring dentries */
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
d_prune_aliases(inode);
dout("trim_caps_cb %p cap %p pruned, count now %d\n",
inode, cap, atomic_read(&inode->i_count));
}
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return 0;
}
i_flushing_item);
struct inode *inode = &ci->vfs_inode;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_cap_flush_seq <= want_flush_seq) {
dout("check_cap_flush still flushing %p "
"seq %lld <= %lld to mds%d\n", inode,
session->s_mds);
ret = 0;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
mutex_unlock(&session->s_mutex);
ceph_put_mds_session(session);
pos, temp);
} else if (stop_on_nosnap && inode &&
ceph_snap(inode) == CEPH_NOSNAP) {
+ spin_unlock(&temp->d_lock);
break;
} else {
pos -= temp->d_name.len;
struct ceph_inode_info *ci = ceph_inode(inode);
dout("invalidate_dir_request %p (D_COMPLETE, lease(s))\n", inode);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ceph_dir_clear_complete(inode);
ci->i_release_count++;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (req->r_dentry)
ceph_invalidate_dentry_lease(req->r_dentry);
if (err)
goto out_free;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
cap->seq = 0; /* reset cap seq */
cap->issue_seq = 0; /* and issue_seq */
rec.v1.pathbase = cpu_to_le64(pathbase);
reclen = sizeof(rec.v1);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (recon_state->flock) {
int num_fcntl_locks, num_flock_locks;
*
* mdsc->snap_rwsem
*
- * inode->i_lock
+ * ci->i_ceph_lock
* mdsc->snap_flush_lock
* mdsc->cap_delay_lock
*
return;
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
used = __ceph_caps_used(ci);
dirty = __ceph_caps_dirty(ci);
kfree(capsnap);
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
/*
*
* If capsnap can now be flushed, add to snap_flush list, and return 1.
*
- * Caller must hold i_lock.
+ * Caller must hold i_ceph_lock.
*/
int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
struct ceph_cap_snap *capsnap)
inode = &ci->vfs_inode;
ihold(inode);
spin_unlock(&mdsc->snap_flush_lock);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__ceph_flush_snaps(ci, &session, 0);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
iput(inode);
spin_lock(&mdsc->snap_flush_lock);
}
continue;
ci = ceph_inode(inode);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (!ci->i_snap_realm)
goto skip_inode;
/*
oldrealm = ci->i_snap_realm;
ci->i_snap_realm = realm;
spin_unlock(&realm->inodes_with_caps_lock);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
ceph_get_snap_realm(mdsc, realm);
ceph_put_snap_realm(mdsc, oldrealm);
continue;
skip_inode:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
iput(inode);
}
if (fsopt->rsize != CEPH_RSIZE_DEFAULT)
seq_printf(m, ",rsize=%d", fsopt->rsize);
if (fsopt->rasize != CEPH_RASIZE_DEFAULT)
- seq_printf(m, ",rasize=%d", fsopt->rsize);
+ seq_printf(m, ",rasize=%d", fsopt->rasize);
if (fsopt->congestion_kb != default_congestion_kb())
seq_printf(m, ",write_congestion_kb=%d", fsopt->congestion_kb);
if (fsopt->caps_wanted_delay_min != CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT)
* The locking for D_COMPLETE is a bit odd:
* - we can clear it at almost any time (see ceph_d_prune)
* - it is only meaningful if:
- * - we hold dir inode i_lock
+ * - we hold dir inode i_ceph_lock
* - we hold dir FILE_SHARED caps
* - the dentry D_COMPLETE is set
*/
struct ceph_inode_info {
struct ceph_vino i_vino; /* ceph ino + snap */
+ spinlock_t i_ceph_lock;
+
u64 i_version;
u32 i_time_warp_seq;
struct ceph_inode_xattrs_info i_xattrs;
- /* capabilities. protected _both_ by i_lock and cap->session's
+ /* capabilities. protected _both_ by i_ceph_lock and cap->session's
* s_mutex. */
struct rb_root i_caps; /* cap list */
struct ceph_cap *i_auth_cap; /* authoritative cap, if any */
{
struct ceph_inode_info *ci = ceph_inode(inode);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_ceph_flags &= ~mask;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
static inline void ceph_i_set(struct inode *inode, unsigned mask)
{
struct ceph_inode_info *ci = ceph_inode(inode);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
ci->i_ceph_flags |= mask;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
}
static inline bool ceph_i_test(struct inode *inode, unsigned mask)
struct ceph_inode_info *ci = ceph_inode(inode);
bool r;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
r = (ci->i_ceph_flags & mask) == mask;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return r;
}
static inline int ceph_caps_issued(struct ceph_inode_info *ci)
{
int issued;
- spin_lock(&ci->vfs_inode.i_lock);
+ spin_lock(&ci->i_ceph_lock);
issued = __ceph_caps_issued(ci, NULL);
- spin_unlock(&ci->vfs_inode.i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return issued;
}
int touch)
{
int r;
- spin_lock(&ci->vfs_inode.i_lock);
+ spin_lock(&ci->i_ceph_lock);
r = __ceph_caps_issued_mask(ci, mask, touch);
- spin_unlock(&ci->vfs_inode.i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return r;
}
extern void __ceph_remove_cap(struct ceph_cap *cap);
static inline void ceph_remove_cap(struct ceph_cap *cap)
{
- struct inode *inode = &cap->ci->vfs_inode;
- spin_lock(&inode->i_lock);
+ spin_lock(&cap->ci->i_ceph_lock);
__ceph_remove_cap(cap);
- spin_unlock(&inode->i_lock);
+ spin_unlock(&cap->ci->i_ceph_lock);
}
extern void ceph_put_cap(struct ceph_mds_client *mdsc,
struct ceph_cap *cap);
}
static int __build_xattrs(struct inode *inode)
- __releases(inode->i_lock)
- __acquires(inode->i_lock)
+ __releases(ci->i_ceph_lock)
+ __acquires(ci->i_ceph_lock)
{
u32 namelen;
u32 numattr = 0;
end = p + ci->i_xattrs.blob->vec.iov_len;
ceph_decode_32_safe(&p, end, numattr, bad);
xattr_version = ci->i_xattrs.version;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
xattrs = kcalloc(numattr, sizeof(struct ceph_xattr *),
GFP_NOFS);
goto bad_lock;
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_xattrs.version != xattr_version) {
/* lost a race, retry */
for (i = 0; i < numattr; i++)
return err;
bad_lock:
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
bad:
if (xattrs) {
for (i = 0; i < numattr; i++)
if (vxattrs)
vxattr = ceph_match_vxattr(vxattrs, name);
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout("getxattr %p ver=%lld index_ver=%lld\n", inode,
ci->i_xattrs.version, ci->i_xattrs.index_version);
(ci->i_xattrs.index_version >= ci->i_xattrs.version)) {
goto get_xattr;
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
/* get xattrs from mds (if we don't already have them) */
err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR);
if (err)
return err;
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (vxattr && vxattr->readonly) {
err = vxattr->getxattr_cb(ci, value, size);
memcpy(value, xattr->val, xattr->val_len);
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return err;
}
u32 len;
int i;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
dout("listxattr %p ver=%lld index_ver=%lld\n", inode,
ci->i_xattrs.version, ci->i_xattrs.index_version);
(ci->i_xattrs.index_version >= ci->i_xattrs.version)) {
goto list_xattr;
} else {
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR);
if (err)
return err;
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
err = __build_xattrs(inode);
if (err < 0)
}
out:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
return err;
}
if (!xattr)
goto out;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
retry:
issued = __ceph_caps_issued(ci, NULL);
if (!(issued & CEPH_CAP_XATTR_EXCL))
required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) {
struct ceph_buffer *blob = NULL;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
dout(" preaallocating new blob size=%d\n", required_blob_size);
blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
if (!blob)
goto out;
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
if (ci->i_xattrs.prealloc_blob)
ceph_buffer_put(ci->i_xattrs.prealloc_blob);
ci->i_xattrs.prealloc_blob = blob;
dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL);
ci->i_xattrs.dirty = true;
inode->i_ctime = CURRENT_TIME;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (dirty)
__mark_inode_dirty(inode, dirty);
return err;
do_sync:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
err = ceph_sync_setxattr(dentry, name, value, size, flags);
out:
kfree(newname);
return -EOPNOTSUPP;
}
- spin_lock(&inode->i_lock);
+ spin_lock(&ci->i_ceph_lock);
__build_xattrs(inode);
issued = __ceph_caps_issued(ci, NULL);
dout("removexattr %p issued %s\n", inode, ceph_cap_string(issued));
ci->i_xattrs.dirty = true;
inode->i_ctime = CURRENT_TIME;
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
if (dirty)
__mark_inode_dirty(inode, dirty);
return err;
do_sync:
- spin_unlock(&inode->i_lock);
+ spin_unlock(&ci->i_ceph_lock);
err = ceph_send_removexattr(dentry, name);
return err;
}
smb_msg.msg_controllen = 0;
for (total_read = 0; to_read; total_read += length, to_read -= length) {
+ try_to_freeze();
+
if (server_unresponsive(server)) {
total_read = -EAGAIN;
break;
lock->type, lock->netfid, conf_lock);
}
+/*
+ * Check if there is another lock that prevents us to set the lock (mandatory
+ * style). If such a lock exists, update the flock structure with its
+ * properties. Otherwise, set the flock type to F_UNLCK if we can cache brlocks
+ * or leave it the same if we can't. Returns 0 if we don't need to request to
+ * the server or 1 otherwise.
+ */
static int
cifs_lock_test(struct cifsInodeInfo *cinode, __u64 offset, __u64 length,
__u8 type, __u16 netfid, struct file_lock *flock)
mutex_unlock(&cinode->lock_mutex);
}
+/*
+ * Set the byte-range lock (mandatory style). Returns:
+ * 1) 0, if we set the lock and don't need to request to the server;
+ * 2) 1, if no locks prevent us but we need to request to the server;
+ * 3) -EACCESS, if there is a lock that prevents us and wait is false.
+ */
static int
cifs_lock_add_if(struct cifsInodeInfo *cinode, struct cifsLockInfo *lock,
bool wait)
return rc;
}
+/*
+ * Check if there is another lock that prevents us to set the lock (posix
+ * style). If such a lock exists, update the flock structure with its
+ * properties. Otherwise, set the flock type to F_UNLCK if we can cache brlocks
+ * or leave it the same if we can't. Returns 0 if we don't need to request to
+ * the server or 1 otherwise.
+ */
static int
cifs_posix_lock_test(struct file *file, struct file_lock *flock)
{
return rc;
}
+/*
+ * Set the byte-range lock (posix style). Returns:
+ * 1) 0, if we set the lock and don't need to request to the server;
+ * 2) 1, if we need to request to the server;
+ * 3) <0, if the error occurs while setting the lock.
+ */
static int
cifs_posix_lock_set(struct file *file, struct file_lock *flock)
{
rc);
return rc;
}
- cifs_save_resume_key(cifsFile->srch_inf.last_entry, cifsFile);
+ /* FindFirst/Next set last_entry to NULL on malformed reply */
+ if (cifsFile->srch_inf.last_entry)
+ cifs_save_resume_key(cifsFile->srch_inf.last_entry,
+ cifsFile);
}
while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
cFYI(1, "calling findnext2");
rc = CIFSFindNext(xid, pTcon, cifsFile->netfid,
&cifsFile->srch_inf);
- cifs_save_resume_key(cifsFile->srch_inf.last_entry, cifsFile);
+ /* FindFirst/Next set last_entry to NULL on malformed reply */
+ if (cifsFile->srch_inf.last_entry)
+ cifs_save_resume_key(cifsFile->srch_inf.last_entry,
+ cifsFile);
if (rc)
return -ENOENT;
}
{
int rc;
int len;
- __u16 wpwd[129];
+ __le16 wpwd[129];
/* Password cannot be longer than 128 characters */
if (passwd) /* Password must be converted to NT unicode */
*wpwd = 0; /* Ensure string is null terminated */
}
- rc = mdfour(p16, (unsigned char *) wpwd, len * sizeof(__u16));
- memset(wpwd, 0, 129 * sizeof(__u16));
+ rc = mdfour(p16, (unsigned char *) wpwd, len * sizeof(__le16));
+ memset(wpwd, 0, 129 * sizeof(__le16));
return rc;
}
return bdi_init(&configfs_backing_dev_info);
}
-void __exit configfs_inode_exit(void)
+void configfs_inode_exit(void)
{
bdi_destroy(&configfs_backing_dev_info);
}
goto out;
config_kobj = kobject_create_and_add("config", kernel_kobj);
- if (!config_kobj) {
- kmem_cache_destroy(configfs_dir_cachep);
- configfs_dir_cachep = NULL;
- goto out;
- }
+ if (!config_kobj)
+ goto out2;
+
+ err = configfs_inode_init();
+ if (err)
+ goto out3;
err = register_filesystem(&configfs_fs_type);
- if (err) {
- printk(KERN_ERR "configfs: Unable to register filesystem!\n");
- kobject_put(config_kobj);
- kmem_cache_destroy(configfs_dir_cachep);
- configfs_dir_cachep = NULL;
- goto out;
- }
+ if (err)
+ goto out4;
- err = configfs_inode_init();
- if (err) {
- unregister_filesystem(&configfs_fs_type);
- kobject_put(config_kobj);
- kmem_cache_destroy(configfs_dir_cachep);
- configfs_dir_cachep = NULL;
- }
+ return 0;
+out4:
+ printk(KERN_ERR "configfs: Unable to register filesystem!\n");
+ configfs_inode_exit();
+out3:
+ kobject_put(config_kobj);
+out2:
+ kmem_cache_destroy(configfs_dir_cachep);
+ configfs_dir_cachep = NULL;
out:
return err;
}
/**
* prepend_path - Prepend path string to a buffer
* @path: the dentry/vfsmount to report
- * @root: root vfsmnt/dentry (may be modified by this function)
+ * @root: root vfsmnt/dentry
* @buffer: pointer to the end of the buffer
* @buflen: pointer to buffer length
*
* Caller holds the rename_lock.
- *
- * If path is not reachable from the supplied root, then the value of
- * root is changed (without modifying refcounts).
*/
-static int prepend_path(const struct path *path, struct path *root,
+static int prepend_path(const struct path *path,
+ const struct path *root,
char **buffer, int *buflen)
{
struct dentry *dentry = path->dentry;
dentry = parent;
}
-out:
if (!error && !slash)
error = prepend(buffer, buflen, "/", 1);
+out:
br_read_unlock(vfsmount_lock);
return error;
WARN(1, "Root dentry has weird name <%.*s>\n",
(int) dentry->d_name.len, dentry->d_name.name);
}
- root->mnt = vfsmnt;
- root->dentry = dentry;
+ if (!slash)
+ error = prepend(buffer, buflen, "/", 1);
+ if (!error)
+ error = vfsmnt->mnt_ns ? 1 : 2;
goto out;
}
/**
* __d_path - return the path of a dentry
* @path: the dentry/vfsmount to report
- * @root: root vfsmnt/dentry (may be modified by this function)
+ * @root: root vfsmnt/dentry
* @buf: buffer to return value in
* @buflen: buffer length
*
*
* "buflen" should be positive.
*
- * If path is not reachable from the supplied root, then the value of
- * root is changed (without modifying refcounts).
+ * If the path is not reachable from the supplied root, return %NULL.
*/
-char *__d_path(const struct path *path, struct path *root,
+char *__d_path(const struct path *path,
+ const struct path *root,
char *buf, int buflen)
{
char *res = buf + buflen;
error = prepend_path(path, root, &res, &buflen);
write_sequnlock(&rename_lock);
- if (error)
+ if (error < 0)
+ return ERR_PTR(error);
+ if (error > 0)
+ return NULL;
+ return res;
+}
+
+char *d_absolute_path(const struct path *path,
+ char *buf, int buflen)
+{
+ struct path root = {};
+ char *res = buf + buflen;
+ int error;
+
+ prepend(&res, &buflen, "\0", 1);
+ write_seqlock(&rename_lock);
+ error = prepend_path(path, &root, &res, &buflen);
+ write_sequnlock(&rename_lock);
+
+ if (error > 1)
+ error = -EINVAL;
+ if (error < 0)
return ERR_PTR(error);
return res;
}
/*
* same as __d_path but appends "(deleted)" for unlinked files.
*/
-static int path_with_deleted(const struct path *path, struct path *root,
- char **buf, int *buflen)
+static int path_with_deleted(const struct path *path,
+ const struct path *root,
+ char **buf, int *buflen)
{
prepend(buf, buflen, "\0", 1);
if (d_unlinked(path->dentry)) {
{
char *res = buf + buflen;
struct path root;
- struct path tmp;
int error;
/*
get_fs_root(current->fs, &root);
write_seqlock(&rename_lock);
- tmp = root;
- error = path_with_deleted(path, &tmp, &res, &buflen);
- if (error)
+ error = path_with_deleted(path, &root, &res, &buflen);
+ if (error < 0)
res = ERR_PTR(error);
write_sequnlock(&rename_lock);
path_put(&root);
{
char *res = buf + buflen;
struct path root;
- struct path tmp;
int error;
if (path->dentry->d_op && path->dentry->d_op->d_dname)
get_fs_root(current->fs, &root);
write_seqlock(&rename_lock);
- tmp = root;
- error = path_with_deleted(path, &tmp, &res, &buflen);
- if (!error && !path_equal(&tmp, &root))
+ error = path_with_deleted(path, &root, &res, &buflen);
+ if (error > 0)
error = prepend_unreachable(&res, &buflen);
write_sequnlock(&rename_lock);
path_put(&root);
write_seqlock(&rename_lock);
if (!d_unlinked(pwd.dentry)) {
unsigned long len;
- struct path tmp = root;
char *cwd = page + PAGE_SIZE;
int buflen = PAGE_SIZE;
prepend(&cwd, &buflen, "\0", 1);
- error = prepend_path(&pwd, &tmp, &cwd, &buflen);
+ error = prepend_path(&pwd, &root, &cwd, &buflen);
write_sequnlock(&rename_lock);
- if (error)
+ if (error < 0)
goto out;
/* Unreachable from current root */
- if (!path_equal(&tmp, &root)) {
+ if (error > 0) {
error = prepend_unreachable(&cwd, &buflen);
if (error)
goto out;
le32_to_cpu(EXT_FIRST_INDEX(neh)->ei_block),
ext4_idx_pblock(EXT_FIRST_INDEX(neh)));
- neh->eh_depth = cpu_to_le16(neh->eh_depth + 1);
+ neh->eh_depth = cpu_to_le16(le16_to_cpu(neh->eh_depth) + 1);
ext4_mark_inode_dirty(handle, inode);
out:
brelse(bh);
/* Pre-conditions */
BUG_ON(!ext4_ext_is_uninitialized(ex));
BUG_ON(!in_range(map->m_lblk, ee_block, ee_len));
- BUG_ON(map->m_lblk + map->m_len > ee_block + ee_len);
/*
* Attempt to transfer newly initialized blocks from the currently
clear_buffer_unwritten(bh);
}
- /* skip page if block allocation undone */
- if (buffer_delay(bh) || buffer_unwritten(bh))
+ /*
+ * skip page if block allocation undone and
+ * block is dirty
+ */
+ if (ext4_bh_delay_or_unwritten(NULL, bh))
skip_page = 1;
bh = bh->b_this_page;
block_start += bh->b_size;
pgoff_t index;
struct inode *inode = mapping->host;
handle_t *handle;
- loff_t page_len;
index = pos >> PAGE_CACHE_SHIFT;
*/
if (pos + len > inode->i_size)
ext4_truncate_failed_write(inode);
- } else {
- page_len = pos & (PAGE_CACHE_SIZE - 1);
- if (page_len > 0) {
- ret = ext4_discard_partial_page_buffers_no_lock(handle,
- inode, page, pos - page_len, page_len,
- EXT4_DISCARD_PARTIAL_PG_ZERO_UNMAPPED);
- }
}
if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
loff_t new_i_size;
unsigned long start, end;
int write_mode = (int)(unsigned long)fsdata;
- loff_t page_len;
if (write_mode == FALL_BACK_TO_NONDELALLOC) {
if (ext4_should_order_data(inode)) {
*/
new_i_size = pos + copied;
- if (new_i_size > EXT4_I(inode)->i_disksize) {
+ if (copied && new_i_size > EXT4_I(inode)->i_disksize) {
if (ext4_da_should_update_i_disksize(page, end)) {
down_write(&EXT4_I(inode)->i_data_sem);
if (new_i_size > EXT4_I(inode)->i_disksize) {
}
ret2 = generic_write_end(file, mapping, pos, len, copied,
page, fsdata);
-
- page_len = PAGE_CACHE_SIZE -
- ((pos + copied - 1) & (PAGE_CACHE_SIZE - 1));
-
- if (page_len > 0) {
- ret = ext4_discard_partial_page_buffers_no_lock(handle,
- inode, page, pos + copied - 1, page_len,
- EXT4_DISCARD_PARTIAL_PG_ZERO_UNMAPPED);
- }
-
copied = ret2;
if (ret2 < 0)
ret = ret2;
iocb->private, io_end->inode->i_ino, iocb, offset,
size);
+ iocb->private = NULL;
+
/* if not aio dio with unwritten extents, just free io and return */
if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) {
ext4_free_io_end(io_end);
- iocb->private = NULL;
out:
if (is_async)
aio_complete(iocb, ret, 0);
spin_unlock_irqrestore(&ei->i_completed_io_lock, flags);
/* queue the work to convert unwritten extents to written */
- iocb->private = NULL;
queue_work(wq, &io_end->work);
/* XXX: probably should move into the real I/O completion handler */
iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
- if (!page_has_buffers(page)) {
- /*
- * If the range to be discarded covers a partial block
- * we need to get the page buffers. This is because
- * partial blocks cannot be released and the page needs
- * to be updated with the contents of the block before
- * we write the zeros on top of it.
- */
- if ((from & (blocksize - 1)) ||
- ((from + length) & (blocksize - 1))) {
- create_empty_buffers(page, blocksize, 0);
- } else {
- /*
- * If there are no partial blocks,
- * there is nothing to update,
- * so we can return now
- */
- return 0;
- }
- }
+ if (!page_has_buffers(page))
+ create_empty_buffers(page, blocksize, 0);
/* Find the buffer that contains "offset" */
bh = page_buffers(page);
block_end = block_start + blocksize;
if (block_start >= len) {
+ /*
+ * Comments copied from block_write_full_page_endio:
+ *
+ * The page straddles i_size. It must be zeroed out on
+ * each and every writepage invocation because it may
+ * be mmapped. "A file is mapped in multiples of the
+ * page size. For a file that is not a multiple of
+ * the page size, the remaining memory is zeroed when
+ * mapped, and writes to that region are not written
+ * out to the file."
+ */
+ zero_user_segment(page, block_start, block_end);
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
continue;
seq_puts(seq, ",block_validity");
if (!test_opt(sb, INIT_INODE_TABLE))
- seq_puts(seq, ",noinit_inode_table");
+ seq_puts(seq, ",noinit_itable");
else if (sbi->s_li_wait_mult != EXT4_DEF_LI_WAIT_MULT)
- seq_printf(seq, ",init_inode_table=%u",
+ seq_printf(seq, ",init_itable=%u",
(unsigned) sbi->s_li_wait_mult);
ext4_show_quota_options(seq, sb);
Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity,
Opt_inode_readahead_blks, Opt_journal_ioprio,
Opt_dioread_nolock, Opt_dioread_lock,
- Opt_discard, Opt_nodiscard,
- Opt_init_inode_table, Opt_noinit_inode_table,
+ Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable,
};
static const match_table_t tokens = {
{Opt_dioread_lock, "dioread_lock"},
{Opt_discard, "discard"},
{Opt_nodiscard, "nodiscard"},
- {Opt_init_inode_table, "init_itable=%u"},
- {Opt_init_inode_table, "init_itable"},
- {Opt_noinit_inode_table, "noinit_itable"},
+ {Opt_init_itable, "init_itable=%u"},
+ {Opt_init_itable, "init_itable"},
+ {Opt_noinit_itable, "noinit_itable"},
{Opt_err, NULL},
};
case Opt_dioread_lock:
clear_opt(sb, DIOREAD_NOLOCK);
break;
- case Opt_init_inode_table:
+ case Opt_init_itable:
set_opt(sb, INIT_INODE_TABLE);
if (args[0].from) {
if (match_int(&args[0], &option))
return 0;
sbi->s_li_wait_mult = option;
break;
- case Opt_noinit_inode_table:
+ case Opt_noinit_itable:
clear_opt(sb, INIT_INODE_TABLE);
break;
default:
* bdi_start_writeback - start writeback
* @bdi: the backing device to write from
* @nr_pages: the number of pages to write
+ * @reason: reason why some writeback work was initiated
*
* Description:
* This does WB_SYNC_NONE opportunistic writeback. The IO is only
* writeback_inodes_sb_nr - writeback dirty inodes from given super_block
* @sb: the superblock
* @nr: the number of pages to write
+ * @reason: reason why some writeback work initiated
*
* Start writeback on some inodes on this super_block. No guarantees are made
* on how many (if any) will be written, and this function does not wait
/**
* writeback_inodes_sb - writeback dirty inodes from given super_block
* @sb: the superblock
+ * @reason: reason why some writeback work was initiated
*
* Start writeback on some inodes on this super_block. No guarantees are made
* on how many (if any) will be written, and this function does not wait
/**
* writeback_inodes_sb_if_idle - start writeback if none underway
* @sb: the superblock
+ * @reason: reason why some writeback work was initiated
*
* Invoke writeback_inodes_sb if no writeback is currently underway.
* Returns 1 if writeback was started, 0 if not.
* writeback_inodes_sb_if_idle - start writeback if none underway
* @sb: the superblock
* @nr: the number of pages to write
+ * @reason: reason why some writeback work was initiated
*
* Invoke writeback_inodes_sb if no writeback is currently underway.
* Returns 1 if writeback was started, 0 if not.
else if (outarg->offset + num > file_size)
num = file_size - outarg->offset;
- while (num) {
+ while (num && req->num_pages < FUSE_MAX_PAGES_PER_REQ) {
struct page *page;
unsigned int this_num;
num -= this_num;
total_len += this_num;
+ index++;
}
req->misc.retrieve_in.offset = outarg->offset;
req->misc.retrieve_in.size = total_len;
struct inode *inode = file->f_path.dentry->d_inode;
mutex_lock(&inode->i_mutex);
- if (origin != SEEK_CUR || origin != SEEK_SET) {
+ if (origin != SEEK_CUR && origin != SEEK_SET) {
retval = fuse_update_attributes(inode, NULL, file, NULL);
if (retval)
goto exit;
offset += i_size_read(inode);
break;
case SEEK_CUR:
+ if (offset == 0) {
+ retval = file->f_pos;
+ goto exit;
+ }
offset += file->f_pos;
break;
case SEEK_DATA:
{
int err;
- err = register_filesystem(&fuse_fs_type);
- if (err)
- goto out;
-
- err = register_fuseblk();
- if (err)
- goto out_unreg;
-
fuse_inode_cachep = kmem_cache_create("fuse_inode",
sizeof(struct fuse_inode),
0, SLAB_HWCACHE_ALIGN,
fuse_inode_init_once);
err = -ENOMEM;
if (!fuse_inode_cachep)
- goto out_unreg2;
+ goto out;
+
+ err = register_fuseblk();
+ if (err)
+ goto out2;
+
+ err = register_filesystem(&fuse_fs_type);
+ if (err)
+ goto out3;
return 0;
- out_unreg2:
+ out3:
unregister_fuseblk();
- out_unreg:
- unregister_filesystem(&fuse_fs_type);
+ out2:
+ kmem_cache_destroy(fuse_inode_cachep);
out:
return err;
}
if (err)
goto out;
seq_putc(m, ' ');
- seq_path_root(m, &mnt_path, &root, " \t\n\\");
- if (root.mnt != p->root.mnt || root.dentry != p->root.dentry) {
- /*
- * Mountpoint is outside root, discard that one. Ugly,
- * but less so than trying to do that in iterator in a
- * race-free way (due to renames).
- */
- return SEQ_SKIP;
- }
+
+ /* mountpoints outside of chroot jail will give SEQ_SKIP on this */
+ err = seq_path_root(m, &mnt_path, &root, " \t\n\\");
+ if (err)
+ goto out;
+
seq_puts(m, mnt->mnt_flags & MNT_READONLY ? " ro" : " rw");
show_mnt_opts(m, mnt);
}
}
EXPORT_SYMBOL(kern_unmount);
+
+bool our_mnt(struct vfsmount *mnt)
+{
+ return check_mnt(mnt);
+}
error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY);
if (error)
- goto out_bdi;
+ goto out_fput;
server->ncp_filp = ncp_filp;
server->ncp_sock = sock;
error = -EBADF;
server->info_filp = fget(data.info_fd);
if (!server->info_filp)
- goto out_fput;
+ goto out_bdi;
error = -ENOTSOCK;
sock_inode = server->info_filp->f_path.dentry->d_inode;
if (!S_ISSOCK(sock_inode->i_mode))
out_fput2:
if (server->info_filp)
fput(server->info_filp);
-out_fput:
- bdi_destroy(&server->bdi);
out_bdi:
+ bdi_destroy(&server->bdi);
+out_fput:
/* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
*
* The previously used put_filp(ncp_filp); was bogus, since
K(i.freeswap),
K(global_page_state(NR_FILE_DIRTY)),
K(global_page_state(NR_WRITEBACK)),
- K(global_page_state(NR_ANON_PAGES)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ K(global_page_state(NR_ANON_PAGES)
+ global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
- HPAGE_PMD_NR
+ HPAGE_PMD_NR),
+#else
+ K(global_page_state(NR_ANON_PAGES)),
#endif
- ),
K(global_page_state(NR_FILE_MAPPED)),
K(global_page_state(NR_SHMEM)),
K(global_page_state(NR_SLAB_RECLAIMABLE) +
void __init proc_root_init(void)
{
- struct vfsmount *mnt;
int err;
proc_init_inodecache();
err = register_filesystem(&proc_fs_type);
if (err)
return;
- mnt = kern_mount_data(&proc_fs_type, &init_pid_ns);
- if (IS_ERR(mnt)) {
+ err = pid_ns_prepare_proc(&init_pid_ns);
+ if (err) {
unregister_filesystem(&proc_fs_type);
return;
}
- init_pid_ns.proc_mnt = mnt;
proc_symlink("mounts", NULL, "self/mounts");
proc_net_init();
void pid_ns_release_proc(struct pid_namespace *ns)
{
- mntput(ns->proc_mnt);
+ kern_unmount(ns->proc_mnt);
}
idle = kstat_cpu(cpu).cpustat.idle;
idle = cputime64_add(idle, arch_idle_time(cpu));
} else
- idle = usecs_to_cputime(idle_time);
+ idle = nsecs_to_jiffies64(1000 * idle_time);
return idle;
}
/* !NO_HZ so we can rely on cpustat.iowait */
iowait = kstat_cpu(cpu).cpustat.iowait;
else
- iowait = usecs_to_cputime(iowait_time);
+ iowait = nsecs_to_jiffies64(1000 * iowait_time);
return iowait;
}
/*
* Same as seq_path, but relative to supplied root.
- *
- * root may be changed, see __d_path().
*/
int seq_path_root(struct seq_file *m, struct path *path, struct path *root,
char *esc)
char *p;
p = __d_path(path, root, buf, size);
+ if (!p)
+ return SEQ_SKIP;
res = PTR_ERR(p);
if (!IS_ERR(p)) {
char *end = mangle_path(buf, p, esc);
}
seq_commit(m, res);
- return res < 0 ? res : 0;
+ return res < 0 && res != -ENAMETOOLONG ? res : 0;
}
/*
return -EINVAL;
}
- err = register_filesystem(&ubifs_fs_type);
- if (err) {
- ubifs_err("cannot register file system, error %d", err);
- return err;
- }
-
- err = -ENOMEM;
ubifs_inode_slab = kmem_cache_create("ubifs_inode_slab",
sizeof(struct ubifs_inode), 0,
SLAB_MEM_SPREAD | SLAB_RECLAIM_ACCOUNT,
&inode_slab_ctor);
if (!ubifs_inode_slab)
- goto out_reg;
+ return -ENOMEM;
register_shrinker(&ubifs_shrinker_info);
if (err)
goto out_compr;
+ err = register_filesystem(&ubifs_fs_type);
+ if (err) {
+ ubifs_err("cannot register file system, error %d", err);
+ goto out_dbg;
+ }
return 0;
+out_dbg:
+ dbg_debugfs_exit();
out_compr:
ubifs_compressors_exit();
out_shrinker:
unregister_shrinker(&ubifs_shrinker_info);
kmem_cache_destroy(ubifs_inode_slab);
-out_reg:
- unregister_filesystem(&ubifs_fs_type);
return err;
}
/* late_initcall to let compressors initialize first */
int tryagain;
int error;
+ ASSERT(ap->length);
+
mp = ap->ip->i_mount;
align = ap->userdata ? xfs_get_extsz_hint(ap->ip) : 0;
if (unlikely(align)) {
int error;
int rt;
+ ASSERT(bma->length > 0);
+
rt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(bma->ip);
/*
ASSERT(*nmap <= XFS_BMAP_MAX_NMAP);
ASSERT(!(flags & XFS_BMAPI_IGSTATE));
ASSERT(tp != NULL);
+ ASSERT(len > 0);
whichfork = (flags & XFS_BMAPI_ATTRFORK) ?
XFS_ATTR_FORK : XFS_DATA_FORK;
bma.eof = eof;
bma.conv = !!(flags & XFS_BMAPI_CONVERT);
bma.wasdel = wasdelay;
- bma.length = len;
bma.offset = bno;
+ /*
+ * There's a 32/64 bit type mismatch between the
+ * allocation length request (which can be 64 bits in
+ * length) and the bma length request, which is
+ * xfs_extlen_t and therefore 32 bits. Hence we have to
+ * check for 32-bit overflows and handle them here.
+ */
+ if (len > (xfs_filblks_t)MAXEXTLEN)
+ bma.length = MAXEXTLEN;
+ else
+ bma.length = len;
+
+ ASSERT(len > 0);
+ ASSERT(bma.length > 0);
error = xfs_bmapi_allocate(&bma, flags);
if (error)
goto error0;
switch (fileid_type) {
case FILEID_INO32_GEN_PARENT:
spin_lock(&dentry->d_lock);
- fid->i32.parent_ino = dentry->d_parent->d_inode->i_ino;
+ fid->i32.parent_ino = XFS_I(dentry->d_parent->d_inode)->i_ino;
fid->i32.parent_gen = dentry->d_parent->d_inode->i_generation;
spin_unlock(&dentry->d_lock);
/*FALLTHRU*/
case FILEID_INO32_GEN:
- fid->i32.ino = inode->i_ino;
+ fid->i32.ino = XFS_I(inode)->i_ino;
fid->i32.gen = inode->i_generation;
break;
case FILEID_INO32_GEN_PARENT | XFS_FILEID_TYPE_64FLAG:
spin_lock(&dentry->d_lock);
- fid64->parent_ino = dentry->d_parent->d_inode->i_ino;
+ fid64->parent_ino = XFS_I(dentry->d_parent->d_inode)->i_ino;
fid64->parent_gen = dentry->d_parent->d_inode->i_generation;
spin_unlock(&dentry->d_lock);
/*FALLTHRU*/
case FILEID_INO32_GEN | XFS_FILEID_TYPE_64FLAG:
- fid64->ino = inode->i_ino;
+ fid64->ino = XFS_I(inode)->i_ino;
fid64->gen = inode->i_generation;
break;
}
} while (head_val != old);
}
+STATIC bool
+xlog_reserveq_wake(
+ struct log *log,
+ int *free_bytes)
+{
+ struct xlog_ticket *tic;
+ int need_bytes;
+
+ list_for_each_entry(tic, &log->l_reserveq, t_queue) {
+ if (tic->t_flags & XLOG_TIC_PERM_RESERV)
+ need_bytes = tic->t_unit_res * tic->t_cnt;
+ else
+ need_bytes = tic->t_unit_res;
+
+ if (*free_bytes < need_bytes)
+ return false;
+ *free_bytes -= need_bytes;
+
+ trace_xfs_log_grant_wake_up(log, tic);
+ wake_up(&tic->t_wait);
+ }
+
+ return true;
+}
+
+STATIC bool
+xlog_writeq_wake(
+ struct log *log,
+ int *free_bytes)
+{
+ struct xlog_ticket *tic;
+ int need_bytes;
+
+ list_for_each_entry(tic, &log->l_writeq, t_queue) {
+ ASSERT(tic->t_flags & XLOG_TIC_PERM_RESERV);
+
+ need_bytes = tic->t_unit_res;
+
+ if (*free_bytes < need_bytes)
+ return false;
+ *free_bytes -= need_bytes;
+
+ trace_xfs_log_regrant_write_wake_up(log, tic);
+ wake_up(&tic->t_wait);
+ }
+
+ return true;
+}
+
+STATIC int
+xlog_reserveq_wait(
+ struct log *log,
+ struct xlog_ticket *tic,
+ int need_bytes)
+{
+ list_add_tail(&tic->t_queue, &log->l_reserveq);
+
+ do {
+ if (XLOG_FORCED_SHUTDOWN(log))
+ goto shutdown;
+ xlog_grant_push_ail(log, need_bytes);
+
+ XFS_STATS_INC(xs_sleep_logspace);
+ trace_xfs_log_grant_sleep(log, tic);
+
+ xlog_wait(&tic->t_wait, &log->l_grant_reserve_lock);
+ trace_xfs_log_grant_wake(log, tic);
+
+ spin_lock(&log->l_grant_reserve_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
+ goto shutdown;
+ } while (xlog_space_left(log, &log->l_grant_reserve_head) < need_bytes);
+
+ list_del_init(&tic->t_queue);
+ return 0;
+shutdown:
+ list_del_init(&tic->t_queue);
+ return XFS_ERROR(EIO);
+}
+
+STATIC int
+xlog_writeq_wait(
+ struct log *log,
+ struct xlog_ticket *tic,
+ int need_bytes)
+{
+ list_add_tail(&tic->t_queue, &log->l_writeq);
+
+ do {
+ if (XLOG_FORCED_SHUTDOWN(log))
+ goto shutdown;
+ xlog_grant_push_ail(log, need_bytes);
+
+ XFS_STATS_INC(xs_sleep_logspace);
+ trace_xfs_log_regrant_write_sleep(log, tic);
+
+ xlog_wait(&tic->t_wait, &log->l_grant_write_lock);
+ trace_xfs_log_regrant_write_wake(log, tic);
+
+ spin_lock(&log->l_grant_write_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
+ goto shutdown;
+ } while (xlog_space_left(log, &log->l_grant_write_head) < need_bytes);
+
+ list_del_init(&tic->t_queue);
+ return 0;
+shutdown:
+ list_del_init(&tic->t_queue);
+ return XFS_ERROR(EIO);
+}
+
static void
xlog_tic_reset_res(xlog_ticket_t *tic)
{
retval = xlog_grant_log_space(log, internal_ticket);
}
+ if (unlikely(retval)) {
+ /*
+ * If we are failing, make sure the ticket doesn't have any
+ * current reservations. We don't want to add this back
+ * when the ticket/ transaction gets cancelled.
+ */
+ internal_ticket->t_curr_res = 0;
+ /* ungrant will give back unit_res * t_cnt. */
+ internal_ticket->t_cnt = 0;
+ }
+
return retval;
-} /* xfs_log_reserve */
+}
/*
/*
* Atomically get the log space required for a log ticket.
*
- * Once a ticket gets put onto the reserveq, it will only return after
- * the needed reservation is satisfied.
+ * Once a ticket gets put onto the reserveq, it will only return after the
+ * needed reservation is satisfied.
*
* This function is structured so that it has a lock free fast path. This is
* necessary because every new transaction reservation will come through this
* every pass.
*
* As tickets are only ever moved on and off the reserveq under the
- * l_grant_reserve_lock, we only need to take that lock if we are going
- * to add the ticket to the queue and sleep. We can avoid taking the lock if the
- * ticket was never added to the reserveq because the t_queue list head will be
- * empty and we hold the only reference to it so it can safely be checked
- * unlocked.
+ * l_grant_reserve_lock, we only need to take that lock if we are going to add
+ * the ticket to the queue and sleep. We can avoid taking the lock if the ticket
+ * was never added to the reserveq because the t_queue list head will be empty
+ * and we hold the only reference to it so it can safely be checked unlocked.
*/
STATIC int
-xlog_grant_log_space(xlog_t *log,
- xlog_ticket_t *tic)
+xlog_grant_log_space(
+ struct log *log,
+ struct xlog_ticket *tic)
{
- int free_bytes;
- int need_bytes;
+ int free_bytes, need_bytes;
+ int error = 0;
-#ifdef DEBUG
- if (log->l_flags & XLOG_ACTIVE_RECOVERY)
- panic("grant Recovery problem");
-#endif
+ ASSERT(!(log->l_flags & XLOG_ACTIVE_RECOVERY));
trace_xfs_log_grant_enter(log, tic);
+ /*
+ * If there are other waiters on the queue then give them a chance at
+ * logspace before us. Wake up the first waiters, if we do not wake
+ * up all the waiters then go to sleep waiting for more free space,
+ * otherwise try to get some space for this transaction.
+ */
need_bytes = tic->t_unit_res;
if (tic->t_flags & XFS_LOG_PERM_RESERV)
need_bytes *= tic->t_ocnt;
-
- /* something is already sleeping; insert new transaction at end */
- if (!list_empty_careful(&log->l_reserveq)) {
- spin_lock(&log->l_grant_reserve_lock);
- /* recheck the queue now we are locked */
- if (list_empty(&log->l_reserveq)) {
- spin_unlock(&log->l_grant_reserve_lock);
- goto redo;
- }
- list_add_tail(&tic->t_queue, &log->l_reserveq);
-
- trace_xfs_log_grant_sleep1(log, tic);
-
- /*
- * Gotta check this before going to sleep, while we're
- * holding the grant lock.
- */
- if (XLOG_FORCED_SHUTDOWN(log))
- goto error_return;
-
- XFS_STATS_INC(xs_sleep_logspace);
- xlog_wait(&tic->t_wait, &log->l_grant_reserve_lock);
-
- /*
- * If we got an error, and the filesystem is shutting down,
- * we'll catch it down below. So just continue...
- */
- trace_xfs_log_grant_wake1(log, tic);
- }
-
-redo:
- if (XLOG_FORCED_SHUTDOWN(log))
- goto error_return_unlocked;
-
free_bytes = xlog_space_left(log, &log->l_grant_reserve_head);
- if (free_bytes < need_bytes) {
+ if (!list_empty_careful(&log->l_reserveq)) {
spin_lock(&log->l_grant_reserve_lock);
- if (list_empty(&tic->t_queue))
- list_add_tail(&tic->t_queue, &log->l_reserveq);
-
- trace_xfs_log_grant_sleep2(log, tic);
-
- if (XLOG_FORCED_SHUTDOWN(log))
- goto error_return;
-
- xlog_grant_push_ail(log, need_bytes);
-
- XFS_STATS_INC(xs_sleep_logspace);
- xlog_wait(&tic->t_wait, &log->l_grant_reserve_lock);
-
- trace_xfs_log_grant_wake2(log, tic);
- goto redo;
- }
-
- if (!list_empty(&tic->t_queue)) {
+ if (!xlog_reserveq_wake(log, &free_bytes) ||
+ free_bytes < need_bytes)
+ error = xlog_reserveq_wait(log, tic, need_bytes);
+ spin_unlock(&log->l_grant_reserve_lock);
+ } else if (free_bytes < need_bytes) {
spin_lock(&log->l_grant_reserve_lock);
- list_del_init(&tic->t_queue);
+ error = xlog_reserveq_wait(log, tic, need_bytes);
spin_unlock(&log->l_grant_reserve_lock);
}
+ if (error)
+ return error;
- /* we've got enough space */
xlog_grant_add_space(log, &log->l_grant_reserve_head, need_bytes);
xlog_grant_add_space(log, &log->l_grant_write_head, need_bytes);
trace_xfs_log_grant_exit(log, tic);
xlog_verify_grant_tail(log);
return 0;
-
-error_return_unlocked:
- spin_lock(&log->l_grant_reserve_lock);
-error_return:
- list_del_init(&tic->t_queue);
- spin_unlock(&log->l_grant_reserve_lock);
- trace_xfs_log_grant_error(log, tic);
-
- /*
- * If we are failing, make sure the ticket doesn't have any
- * current reservations. We don't want to add this back when
- * the ticket/transaction gets cancelled.
- */
- tic->t_curr_res = 0;
- tic->t_cnt = 0; /* ungrant will give back unit_res * t_cnt. */
- return XFS_ERROR(EIO);
-} /* xlog_grant_log_space */
-
+}
/*
* Replenish the byte reservation required by moving the grant write head.
* free fast path.
*/
STATIC int
-xlog_regrant_write_log_space(xlog_t *log,
- xlog_ticket_t *tic)
+xlog_regrant_write_log_space(
+ struct log *log,
+ struct xlog_ticket *tic)
{
- int free_bytes, need_bytes;
+ int free_bytes, need_bytes;
+ int error = 0;
tic->t_curr_res = tic->t_unit_res;
xlog_tic_reset_res(tic);
if (tic->t_cnt > 0)
return 0;
-#ifdef DEBUG
- if (log->l_flags & XLOG_ACTIVE_RECOVERY)
- panic("regrant Recovery problem");
-#endif
+ ASSERT(!(log->l_flags & XLOG_ACTIVE_RECOVERY));
trace_xfs_log_regrant_write_enter(log, tic);
- if (XLOG_FORCED_SHUTDOWN(log))
- goto error_return_unlocked;
- /* If there are other waiters on the queue then give them a
- * chance at logspace before us. Wake up the first waiters,
- * if we do not wake up all the waiters then go to sleep waiting
- * for more free space, otherwise try to get some space for
- * this transaction.
+ /*
+ * If there are other waiters on the queue then give them a chance at
+ * logspace before us. Wake up the first waiters, if we do not wake
+ * up all the waiters then go to sleep waiting for more free space,
+ * otherwise try to get some space for this transaction.
*/
need_bytes = tic->t_unit_res;
- if (!list_empty_careful(&log->l_writeq)) {
- struct xlog_ticket *ntic;
-
- spin_lock(&log->l_grant_write_lock);
- free_bytes = xlog_space_left(log, &log->l_grant_write_head);
- list_for_each_entry(ntic, &log->l_writeq, t_queue) {
- ASSERT(ntic->t_flags & XLOG_TIC_PERM_RESERV);
-
- if (free_bytes < ntic->t_unit_res)
- break;
- free_bytes -= ntic->t_unit_res;
- wake_up(&ntic->t_wait);
- }
-
- if (ntic != list_first_entry(&log->l_writeq,
- struct xlog_ticket, t_queue)) {
- if (list_empty(&tic->t_queue))
- list_add_tail(&tic->t_queue, &log->l_writeq);
- trace_xfs_log_regrant_write_sleep1(log, tic);
-
- xlog_grant_push_ail(log, need_bytes);
-
- XFS_STATS_INC(xs_sleep_logspace);
- xlog_wait(&tic->t_wait, &log->l_grant_write_lock);
- trace_xfs_log_regrant_write_wake1(log, tic);
- } else
- spin_unlock(&log->l_grant_write_lock);
- }
-
-redo:
- if (XLOG_FORCED_SHUTDOWN(log))
- goto error_return_unlocked;
-
free_bytes = xlog_space_left(log, &log->l_grant_write_head);
- if (free_bytes < need_bytes) {
+ if (!list_empty_careful(&log->l_writeq)) {
spin_lock(&log->l_grant_write_lock);
- if (list_empty(&tic->t_queue))
- list_add_tail(&tic->t_queue, &log->l_writeq);
-
- if (XLOG_FORCED_SHUTDOWN(log))
- goto error_return;
-
- xlog_grant_push_ail(log, need_bytes);
-
- XFS_STATS_INC(xs_sleep_logspace);
- trace_xfs_log_regrant_write_sleep2(log, tic);
- xlog_wait(&tic->t_wait, &log->l_grant_write_lock);
-
- trace_xfs_log_regrant_write_wake2(log, tic);
- goto redo;
- }
-
- if (!list_empty(&tic->t_queue)) {
+ if (!xlog_writeq_wake(log, &free_bytes) ||
+ free_bytes < need_bytes)
+ error = xlog_writeq_wait(log, tic, need_bytes);
+ spin_unlock(&log->l_grant_write_lock);
+ } else if (free_bytes < need_bytes) {
spin_lock(&log->l_grant_write_lock);
- list_del_init(&tic->t_queue);
+ error = xlog_writeq_wait(log, tic, need_bytes);
spin_unlock(&log->l_grant_write_lock);
}
- /* we've got enough space */
+ if (error)
+ return error;
+
xlog_grant_add_space(log, &log->l_grant_write_head, need_bytes);
trace_xfs_log_regrant_write_exit(log, tic);
xlog_verify_grant_tail(log);
return 0;
-
-
- error_return_unlocked:
- spin_lock(&log->l_grant_write_lock);
- error_return:
- list_del_init(&tic->t_queue);
- spin_unlock(&log->l_grant_write_lock);
- trace_xfs_log_regrant_write_error(log, tic);
-
- /*
- * If we are failing, make sure the ticket doesn't have any
- * current reservations. We don't want to add this back when
- * the ticket/transaction gets cancelled.
- */
- tic->t_curr_res = 0;
- tic->t_cnt = 0; /* ungrant will give back unit_res * t_cnt. */
- return XFS_ERROR(EIO);
-} /* xlog_regrant_write_log_space */
-
+}
/* The first cnt-1 times through here we don't need to
* move the grant write head because the permanent
DEFINE_LOGGRANT_EVENT(xfs_log_grant_enter);
DEFINE_LOGGRANT_EVENT(xfs_log_grant_exit);
DEFINE_LOGGRANT_EVENT(xfs_log_grant_error);
-DEFINE_LOGGRANT_EVENT(xfs_log_grant_sleep1);
-DEFINE_LOGGRANT_EVENT(xfs_log_grant_wake1);
-DEFINE_LOGGRANT_EVENT(xfs_log_grant_sleep2);
-DEFINE_LOGGRANT_EVENT(xfs_log_grant_wake2);
+DEFINE_LOGGRANT_EVENT(xfs_log_grant_sleep);
+DEFINE_LOGGRANT_EVENT(xfs_log_grant_wake);
DEFINE_LOGGRANT_EVENT(xfs_log_grant_wake_up);
DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_enter);
DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_exit);
DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_error);
-DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_sleep1);
-DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_wake1);
-DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_sleep2);
-DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_wake2);
+DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_sleep);
+DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_wake);
DEFINE_LOGGRANT_EVENT(xfs_log_regrant_write_wake_up);
DEFINE_LOGGRANT_EVENT(xfs_log_regrant_reserve_enter);
DEFINE_LOGGRANT_EVENT(xfs_log_regrant_reserve_exit);
__SYSCALL(__NR_setns, sys_setns)
#define __NR_sendmmsg 269
__SC_COMP(__NR_sendmmsg, sys_sendmmsg, compat_sys_sendmmsg)
+#define __NR_process_vm_readv 270
+__SC_COMP(__NR_process_vm_readv, sys_process_vm_readv, \
+ compat_sys_process_vm_readv)
+#define __NR_process_vm_writev 271
+__SC_COMP(__NR_process_vm_writev, sys_process_vm_writev, \
+ compat_sys_process_vm_writev)
#undef __NR_syscalls
-#define __NR_syscalls 270
+#define __NR_syscalls 272
/*
* All syscalls below here should go away really,
{0x1002, 0x6748, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6749, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6750, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6751, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6758, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6759, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x675B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x675D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x675F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6760, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6761, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6767, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6768, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6770, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6772, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6778, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6779, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x677B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAICOS|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6840, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6841, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6842, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TURKS|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x68f2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \
{0x1002, 0x68f8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \
{0x1002, 0x68f9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x68fa, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \
{0x1002, 0x68fe, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CEDAR|RADEON_NEW_MEMMAP}, \
{0x1002, 0x7100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R520|RADEON_NEW_MEMMAP}, \
{0x1002, 0x7101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R520|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x9647, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
{0x1002, 0x9648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
{0x1002, 0x964a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x964b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x964c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x964e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
{0x1002, 0x964f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
{0x1002, 0x9710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9806, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9807, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x9808, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x9809, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0, 0, 0}
#define r128_PCI_IDS \
*/
extern struct request_queue *blk_init_queue_node(request_fn_proc *rfn,
spinlock_t *lock, int node_id);
-extern struct request_queue *blk_init_allocated_queue_node(struct request_queue *,
- request_fn_proc *,
- spinlock_t *, int node_id);
extern struct request_queue *blk_init_queue(request_fn_proc *, spinlock_t *);
extern struct request_queue *blk_init_allocated_queue(struct request_queue *,
request_fn_proc *, spinlock_t *);
extern void __user *compat_alloc_user_space(unsigned long len);
+asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
+ const struct compat_iovec __user *lvec,
+ unsigned long liovcnt, const struct compat_iovec __user *rvec,
+ unsigned long riovcnt, unsigned long flags);
+asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
+ const struct compat_iovec __user *lvec,
+ unsigned long liovcnt, const struct compat_iovec __user *rvec,
+ unsigned long riovcnt, unsigned long flags);
+
#endif /* CONFIG_COMPAT */
#endif /* _LINUX_COMPAT_H */
*/
extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
-extern char *__d_path(const struct path *path, struct path *root, char *, int);
+extern char *__d_path(const struct path *, const struct path *, char *, int);
+extern char *d_absolute_path(const struct path *, char *, int);
extern char *d_path(const struct path *, char *, int);
extern char *d_path_with_unreachable(const struct path *, char *, int);
extern char *dentry_path_raw(struct dentry *, char *, int);
extern int iommu_calculate_agaw(struct intel_iommu *iommu);
extern int iommu_calculate_max_sagaw(struct intel_iommu *iommu);
extern int dmar_disabled;
+extern int intel_iommu_enabled;
#else
static inline int iommu_calculate_agaw(struct intel_iommu *iommu)
{
{
}
#define dmar_disabled (1)
+#define intel_iommu_enabled (0)
#endif
#include <linux/semaphore.h>
#include <linux/fiemap.h>
#include <linux/rculist_bl.h>
-#include <linux/shrinker.h>
#include <linux/atomic.h>
+#include <linux/shrinker.h>
#include <asm/byteorder.h>
extern int statfs_by_dentry(struct dentry *, struct kstatfs *);
extern int freeze_super(struct super_block *super);
extern int thaw_super(struct super_block *super);
+extern bool our_mnt(struct vfsmount *mnt);
extern int current_umask(void);
#define rounddown_pow_of_two(n) \
( \
__builtin_constant_p(n) ? ( \
- (n == 1) ? 0 : \
(1UL << ilog2(n))) : \
__rounddown_pow_of_two(n) \
)
#include <linux/mmzone.h>
#include <linux/rbtree.h>
#include <linux/prio_tree.h>
+#include <linux/atomic.h>
#include <linux/debug_locks.h>
#include <linux/mm_types.h>
#include <linux/range.h>
#define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */
#define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */
#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */
+#define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */
/* byte mode */
unsigned int poweroff_notify_state; /* eMMC4.5 notify feature */
#define MMC_NO_POWER_NOTIFICATION 0
return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
}
+static inline int mmc_card_long_read_time(const struct mmc_card *c)
+{
+ return c->quirks & MMC_QUIRK_LONG_READ_TIME;
+}
+
#define mmc_card_name(c) ((c)->cid.prod_name)
#define mmc_card_id(c) (dev_name(&(c)->dev))
/* These are for internal use */
struct list_head list;
- long nr; /* objs pending delete */
+ atomic_long_t nr_in_batch; /* objs pending delete */
};
#define DEFAULT_SEEKS 2 /* A good number if you don't know better. */
extern void register_shrinker(struct shrinker *);
SCF_SCSI_NON_DATA_CDB = 0x00000040,
SCF_SCSI_CDB_EXCEPTION = 0x00000080,
SCF_SCSI_RESERVATION_CONFLICT = 0x00000100,
- SCF_SE_CMD_FAILED = 0x00000400,
+ SCF_FUA = 0x00000200,
SCF_SE_LUN_CMD = 0x00000800,
SCF_SE_ALLOW_EOO = 0x00001000,
+ SCF_BIDI = 0x00002000,
SCF_SENT_CHECK_CONDITION = 0x00004000,
SCF_OVERFLOW_BIT = 0x00008000,
SCF_UNDERFLOW_BIT = 0x00010000,
TCM_CHECK_CONDITION_ABORT_CMD = 0x0d,
TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e,
TCM_CHECK_CONDITION_NOT_READY = 0x0f,
+ TCM_RESERVATION_CONFLICT = 0x10,
};
struct se_obj {
u16 lu_gp_id;
int lu_gp_valid_id;
u32 lu_gp_members;
- atomic_t lu_gp_shutdown;
atomic_t lu_gp_ref_cnt;
spinlock_t lu_gp_lock;
struct config_group lu_gp_group;
int sam_task_attr;
/* Transport protocol dependent state, see transport_state_table */
enum transport_state_table t_state;
- /* Transport specific error status */
- int transport_error_status;
/* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
- int check_release:1;
- int cmd_wait_set:1;
+ unsigned check_release:1;
+ unsigned cmd_wait_set:1;
/* See se_cmd_flags_table */
u32 se_cmd_flags;
u32 se_ordered_id;
/* Used for sense data */
void *sense_buffer;
struct list_head se_delayed_node;
- struct list_head se_ordered_node;
struct list_head se_lun_node;
struct list_head se_qf_node;
struct se_device *se_dev;
struct se_dev_entry *se_deve;
- struct se_device *se_obj_ptr;
- struct se_device *se_orig_obj_ptr;
struct se_lun *se_lun;
/* Only used for internal passthrough and legacy TCM fabric modules */
struct se_session *se_sess;
unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
unsigned long long t_task_lba;
int t_tasks_failed;
- int t_tasks_fua;
- bool t_tasks_bidi;
u32 t_tasks_sg_chained_no;
atomic_t t_fe_count;
atomic_t t_se_count;
struct work_struct work;
- /*
- * Used for pre-registered fabric SGL passthrough WRITE and READ
- * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
- * and other HW target mode fabric modules.
- */
- struct scatterlist *t_task_pt_sgl;
- u32 t_task_pt_sgl_num;
-
struct scatterlist *t_data_sg;
unsigned int t_data_nents;
struct scatterlist *t_bidi_data_sg;
} ____cacheline_aligned;
struct se_session {
- int sess_tearing_down:1;
+ unsigned sess_tearing_down:1;
u64 sess_bin_isid;
struct se_node_acl *se_node_acl;
struct se_portal_group *se_tpg;
struct t10_reservation t10_pr;
spinlock_t se_dev_lock;
void *se_dev_su_ptr;
- struct list_head se_dev_node;
struct config_group se_dev_group;
/* For T10 Reservations */
struct config_group se_dev_pr_group;
} ____cacheline_aligned;
struct se_device {
- /* Set to 1 if thread is NOT sleeping on thread_sem */
- u8 thread_active;
- u8 dev_status_timer_flags;
/* RELATIVE TARGET PORT IDENTIFER Counter */
u16 dev_rpti_counter;
/* Used for SAM Task Attribute ordering */
u64 write_bytes;
spinlock_t stats_lock;
/* Active commands on this virtual SE device */
- atomic_t active_cmds;
atomic_t simple_cmds;
atomic_t depth_left;
atomic_t dev_ordered_id;
- atomic_t dev_tur_active;
atomic_t execute_tasks;
- atomic_t dev_status_thr_count;
- atomic_t dev_hoq_count;
atomic_t dev_ordered_sync;
atomic_t dev_qf_count;
struct se_obj dev_obj;
struct se_obj dev_export_obj;
struct se_queue_obj dev_queue_obj;
spinlock_t delayed_cmd_lock;
- spinlock_t ordered_cmd_lock;
spinlock_t execute_task_lock;
- spinlock_t state_task_lock;
- spinlock_t dev_alua_lock;
spinlock_t dev_reservation_lock;
- spinlock_t dev_state_lock;
spinlock_t dev_status_lock;
- spinlock_t dev_status_thr_lock;
spinlock_t se_port_lock;
spinlock_t se_tmr_lock;
spinlock_t qf_cmd_lock;
struct t10_pr_registration *dev_pr_res_holder;
struct list_head dev_sep_list;
struct list_head dev_tmr_list;
- struct timer_list dev_status_timer;
/* Pointer to descriptor for processing thread */
struct task_struct *process_thread;
- pid_t process_thread_pid;
- struct task_struct *dev_mgmt_thread;
struct work_struct qf_work_queue;
struct list_head delayed_cmd_list;
- struct list_head ordered_cmd_list;
struct list_head execute_task_list;
struct list_head state_task_list;
struct list_head qf_cmd_list;
struct se_subsystem_api *transport;
/* Linked list for struct se_hba struct se_device list */
struct list_head dev_list;
- /* Linked list for struct se_global->g_se_dev_list */
- struct list_head g_se_dev_list;
} ____cacheline_aligned;
struct se_hba {
u32 sep_index;
struct scsi_port_stats sep_stats;
/* Used for ALUA Target Port Groups membership */
- atomic_t sep_tg_pt_gp_active;
atomic_t sep_tg_pt_secondary_offline;
/* Used for PR ALL_TG_PT=1 */
atomic_t sep_tg_pt_ref_cnt;
#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */
-#define PYX_TRANSPORT_SENT_TO_TRANSPORT 0
-#define PYX_TRANSPORT_WRITE_PENDING 1
-
-#define PYX_TRANSPORT_UNKNOWN_SAM_OPCODE -1
-#define PYX_TRANSPORT_HBA_QUEUE_FULL -2
-#define PYX_TRANSPORT_REQ_TOO_MANY_SECTORS -3
-#define PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES -4
-#define PYX_TRANSPORT_INVALID_CDB_FIELD -5
-#define PYX_TRANSPORT_INVALID_PARAMETER_LIST -6
-#define PYX_TRANSPORT_LU_COMM_FAILURE -7
-#define PYX_TRANSPORT_UNKNOWN_MODE_PAGE -8
-#define PYX_TRANSPORT_WRITE_PROTECTED -9
-#define PYX_TRANSPORT_RESERVATION_CONFLICT -10
-#define PYX_TRANSPORT_ILLEGAL_REQUEST -11
-#define PYX_TRANSPORT_USE_SENSE_REASON -12
-
-#ifndef SAM_STAT_RESERVATION_CONFLICT
-#define SAM_STAT_RESERVATION_CONFLICT 0x18
-#endif
-
-#define TRANSPORT_PLUGIN_FREE 0
-#define TRANSPORT_PLUGIN_REGISTERED 1
-
#define TRANSPORT_PLUGIN_PHBA_PDEV 1
#define TRANSPORT_PLUGIN_VHBA_PDEV 2
#define TRANSPORT_PLUGIN_VHBA_VDEV 3
extern int transport_handle_cdb_direct(struct se_cmd *);
extern int transport_generic_handle_cdb_map(struct se_cmd *);
extern int transport_generic_handle_data(struct se_cmd *);
-extern void transport_new_cmd_failure(struct se_cmd *);
extern int transport_generic_handle_tmr(struct se_cmd *);
extern bool target_stop_task(struct se_task *task, unsigned long *flags);
extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32,
void mq_put_mnt(struct ipc_namespace *ns)
{
- mntput(ns->mq_mnt);
+ kern_unmount(ns->mq_mnt);
}
static int __init init_mqueue_fs(void)
spin_lock_init(&mq_lock);
- init_ipc_ns.mq_mnt = kern_mount_data(&mqueue_fs_type, &init_ipc_ns);
- if (IS_ERR(init_ipc_ns.mq_mnt)) {
- error = PTR_ERR(init_ipc_ns.mq_mnt);
+ error = mq_init_ns(&init_ipc_ns);
+ if (error)
goto out_filesystem;
- }
return 0;
*/
struct ipc_namespace init_ipc_ns = {
.count = ATOMIC_INIT(1),
-#ifdef CONFIG_POSIX_MQUEUE
- .mq_queues_max = DFLT_QUEUESMAX,
- .mq_msg_max = DFLT_MSGMAX,
- .mq_msgsize_max = DFLT_MSGSIZEMAX,
-#endif
.user_ns = &init_user_ns,
};
*/
cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
- perf_event_sched_in(cpuctx, ctx, task);
-
if (ctx->nr_events)
cpuctx->task_ctx = ctx;
+ perf_event_sched_in(cpuctx, cpuctx->task_ctx, task);
+
perf_pmu_enable(ctx->pmu);
perf_ctx_unlock(cpuctx, ctx);
#include <linux/stringify.h>
#include <linux/bitops.h>
#include <linux/gfp.h>
+#include <linux/kmemcheck.h>
#include <asm/sections.h>
void lockdep_init_map(struct lockdep_map *lock, const char *name,
struct lock_class_key *key, int subclass)
{
- memset(lock, 0, sizeof(*lock));
+ int i;
+
+ kmemcheck_mark_initialized(lock, sizeof(*lock));
+
+ for (i = 0; i < NR_LOCKDEP_CACHING_CLASSES; i++)
+ lock->class_cache[i] = NULL;
#ifdef CONFIG_LOCK_STAT
lock->cpu = raw_smp_processor_id();
raw_spin_lock(&logbuf_lock);
if (con_start != log_end)
retry = 1;
+ raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+
if (retry && console_trylock())
goto again;
- raw_spin_unlock_irqrestore(&logbuf_lock, flags);
if (wake_klogd)
wake_up_klogd();
}
struct alarm *alarm;
ktime_t expired = next->expires;
- if (expired.tv64 >= now.tv64)
+ if (expired.tv64 > now.tv64)
break;
alarm = container_of(next, struct alarm, node);
int pid;
rcu_read_lock();
- pid = task_tgid_vnr(current->real_parent);
+ pid = task_tgid_vnr(rcu_dereference(current->real_parent));
rcu_read_unlock();
return pid;
static bool exact_match(struct dma_debug_entry *a, struct dma_debug_entry *b)
{
- return ((a->dev_addr == a->dev_addr) &&
+ return ((a->dev_addr == b->dev_addr) &&
(a->dev == b->dev)) ? true : false;
}
iov_iter_count(i));
again:
-
/*
* Bring in the user page that we will copy from _first_.
* Otherwise there's a nasty deadlock on copying from the
written += copied;
balance_dirty_pages_ratelimited(mapping);
-
+ if (fatal_signal_pending(current)) {
+ status = -EINTR;
+ break;
+ }
} while (iov_iter_count(i));
return written ? written : status;
static void khugepaged_alloc_sleep(void)
{
- DEFINE_WAIT(wait);
- add_wait_queue(&khugepaged_wait, &wait);
- schedule_timeout_interruptible(
- msecs_to_jiffies(
- khugepaged_alloc_sleep_millisecs));
- remove_wait_queue(&khugepaged_wait, &wait);
+ wait_event_freezable_timeout(khugepaged_wait, false,
+ msecs_to_jiffies(khugepaged_alloc_sleep_millisecs));
}
#ifndef CONFIG_NUMA
if (unlikely(kthread_should_stop()))
break;
if (khugepaged_has_work()) {
- DEFINE_WAIT(wait);
if (!khugepaged_scan_sleep_millisecs)
continue;
- add_wait_queue(&khugepaged_wait, &wait);
- schedule_timeout_interruptible(
- msecs_to_jiffies(
- khugepaged_scan_sleep_millisecs));
- remove_wait_queue(&khugepaged_wait, &wait);
+ wait_event_freezable_timeout(khugepaged_wait, false,
+ msecs_to_jiffies(khugepaged_scan_sleep_millisecs));
} else if (khugepaged_enabled())
wait_event_freezable(khugepaged_wait,
khugepaged_wait_event());
__SetPageHead(page);
for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
__SetPageTail(p);
+ set_page_count(p, 0);
p->first_page = page;
}
}
if (anon_vma)
put_anon_vma(anon_vma);
-out:
unlock_page(hpage);
+out:
if (rc != -EAGAIN) {
list_del(&hpage->lru);
put_page(hpage);
*
* Returns @bdi's dirty limit in pages. The term "dirty" in the context of
* dirty balancing includes all PG_dirty, PG_writeback and NFS unstable pages.
- * And the "limit" in the name is not seriously taken as hard limit in
- * balance_dirty_pages().
+ *
+ * Note that balance_dirty_pages() will only seriously take it as a hard limit
+ * when sleeping max_pause per page is not enough to keep the dirty pages under
+ * control. For example, when the device is completely stalled due to some error
+ * conditions, or when there are 1000 dd tasks writing to a slow 10MB/s USB key.
+ * In the other normal situations, it acts more gently by throttling the tasks
+ * more (rather than completely block them) when the bdi dirty pages go high.
*
* It allocates high/low dirty limits to fast/slow devices, in order to prevent
* - starving fast devices
*/
if (unlikely(bdi_thresh > thresh))
bdi_thresh = thresh;
+ /*
+ * It's very possible that bdi_thresh is close to 0 not because the
+ * device is slow, but that it has remained inactive for long time.
+ * Honour such devices a reasonable good (hopefully IO efficient)
+ * threshold, so that the occasional writes won't be blocked and active
+ * writes can rampup the threshold quickly.
+ */
bdi_thresh = max(bdi_thresh, (limit - dirty) / 8);
/*
* scale global setpoint to bdi's:
*
* 8 serves as the safety ratio.
*/
- if (bdi_dirty)
- t = min(t, bdi_dirty * HZ / (8 * bw + 1));
+ t = min(t, bdi_dirty * HZ / (8 * bw + 1));
/*
* The pause time will be settled within range (max_pause/4, max_pause).
if (task_ratelimit)
break;
+ /*
+ * In the case of an unresponding NFS server and the NFS dirty
+ * pages exceeds dirty_thresh, give the other good bdi's a pipe
+ * to go through, so that tasks on them still remain responsive.
+ *
+ * In theory 1 page is enough to keep the comsumer-producer
+ * pipe going: the flusher cleans 1 page => the task dirties 1
+ * more page. However bdi_dirty has accounting errors. So use
+ * the larger and more IO friendly bdi_stat_error.
+ */
+ if (bdi_dirty <= bdi_stat_error(bdi))
+ break;
+
if (fatal_signal_pending(current))
break;
}
__SetPageHead(page);
for (i = 1; i < nr_pages; i++) {
struct page *p = page + i;
-
__SetPageTail(p);
+ set_page_count(p, 0);
p->first_page = page;
}
}
unsigned long block_migratetype;
int reserve;
- /* Get the start pfn, end pfn and the number of blocks to reserve */
+ /*
+ * Get the start pfn, end pfn and the number of blocks to reserve
+ * We have to be careful to be aligned to pageblock_nr_pages to
+ * make sure that we always check pfn_valid for the first page in
+ * the block.
+ */
start_pfn = zone->zone_start_pfn;
end_pfn = start_pfn + zone->spanned_pages;
+ start_pfn = roundup(start_pfn, pageblock_nr_pages);
reserve = roundup(min_wmark_pages(zone), pageblock_nr_pages) >>
pageblock_order;
goto fail;
addr = __vmalloc_area_node(area, gfp_mask, prot, node, caller);
+ if (!addr)
+ return NULL;
/*
* In this function, newly allocated vm_struct is not added
*/
void register_shrinker(struct shrinker *shrinker)
{
- shrinker->nr = 0;
+ atomic_long_set(&shrinker->nr_in_batch, 0);
down_write(&shrinker_rwsem);
list_add_tail(&shrinker->list, &shrinker_list);
up_write(&shrinker_rwsem);
list_for_each_entry(shrinker, &shrinker_list, list) {
unsigned long long delta;
- unsigned long total_scan;
- unsigned long max_pass;
+ long total_scan;
+ long max_pass;
int shrink_ret = 0;
long nr;
long new_nr;
long batch_size = shrinker->batch ? shrinker->batch
: SHRINK_BATCH;
+ max_pass = do_shrinker_shrink(shrinker, shrink, 0);
+ if (max_pass <= 0)
+ continue;
+
/*
* copy the current shrinker scan count into a local variable
* and zero it so that other concurrent shrinker invocations
* don't also do this scanning work.
*/
- do {
- nr = shrinker->nr;
- } while (cmpxchg(&shrinker->nr, nr, 0) != nr);
+ nr = atomic_long_xchg(&shrinker->nr_in_batch, 0);
total_scan = nr;
- max_pass = do_shrinker_shrink(shrinker, shrink, 0);
delta = (4 * nr_pages_scanned) / shrinker->seeks;
delta *= max_pass;
do_div(delta, lru_pages + 1);
* manner that handles concurrent updates. If we exhausted the
* scan, there is no need to do an update.
*/
- do {
- nr = shrinker->nr;
- new_nr = total_scan + nr;
- if (total_scan <= 0)
- break;
- } while (cmpxchg(&shrinker->nr, nr, new_nr) != nr);
+ if (total_scan > 0)
+ new_nr = atomic_long_add_return(total_scan,
+ &shrinker->nr_in_batch);
+ else
+ new_nr = atomic_long_read(&shrinker->nr_in_batch);
trace_mm_shrink_slab_end(shrinker, shrink_ret, nr, new_nr);
}
int i, j;
int numrep;
int firstn;
- int rc = -1;
BUG_ON(ruleno >= map->max_rules);
* that this may or may not correspond to the specific types
* referenced by the crush rule.
*/
- if (force >= 0) {
- if (force >= map->max_devices ||
- map->device_parents[force] == 0) {
- /*dprintk("CRUSH: forcefed device dne\n");*/
- rc = -1; /* force fed device dne */
- goto out;
- }
- if (!is_out(map, weight, force, x)) {
- while (1) {
- force_context[++force_pos] = force;
- if (force >= 0)
- force = map->device_parents[force];
- else
- force = map->bucket_parents[-1-force];
- if (force == 0)
- break;
- }
+ if (force >= 0 &&
+ force < map->max_devices &&
+ map->device_parents[force] != 0 &&
+ !is_out(map, weight, force, x)) {
+ while (1) {
+ force_context[++force_pos] = force;
+ if (force >= 0)
+ force = map->device_parents[force];
+ else
+ force = map->bucket_parents[-1-force];
+ if (force == 0)
+ break;
}
}
BUG_ON(1);
}
}
- rc = result_len;
-
-out:
- return rc;
+ return result_len;
}
int attempts = !in_softirq();
if (!(rt->rt6i_flags&RTF_GATEWAY)) {
- if (rt->rt6i_dst.plen != 128 &&
+ if (ort->rt6i_dst.plen != 128 &&
ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
rt->rt6i_flags |= RTF_ANYCAST;
ipv6_addr_copy(&rt->rt6i_gateway, daddr);
static int d_namespace_path(struct path *path, char *buf, int buflen,
char **name, int flags)
{
- struct path root, tmp;
char *res;
- int connected, error = 0;
+ int error = 0;
+ int connected = 1;
+
+ if (path->mnt->mnt_flags & MNT_INTERNAL) {
+ /* it's not mounted anywhere */
+ res = dentry_path(path->dentry, buf, buflen);
+ *name = res;
+ if (IS_ERR(res)) {
+ *name = buf;
+ return PTR_ERR(res);
+ }
+ if (path->dentry->d_sb->s_magic == PROC_SUPER_MAGIC &&
+ strncmp(*name, "/sys/", 5) == 0) {
+ /* TODO: convert over to using a per namespace
+ * control instead of hard coded /proc
+ */
+ return prepend(name, *name - buf, "/proc", 5);
+ }
+ return 0;
+ }
- /* Get the root we want to resolve too, released below */
+ /* resolve paths relative to chroot?*/
if (flags & PATH_CHROOT_REL) {
- /* resolve paths relative to chroot */
+ struct path root;
get_fs_root(current->fs, &root);
- } else {
- /* resolve paths relative to namespace */
- root.mnt = current->nsproxy->mnt_ns->root;
- root.dentry = root.mnt->mnt_root;
- path_get(&root);
+ res = __d_path(path, &root, buf, buflen);
+ if (res && !IS_ERR(res)) {
+ /* everything's fine */
+ *name = res;
+ path_put(&root);
+ goto ok;
+ }
+ path_put(&root);
+ connected = 0;
}
- tmp = root;
- res = __d_path(path, &tmp, buf, buflen);
+ res = d_absolute_path(path, buf, buflen);
*name = res;
/* handle error conditions - and still allow a partial path to
*name = buf;
goto out;
}
+ if (!our_mnt(path->mnt))
+ connected = 0;
+ok:
/* Handle two cases:
* 1. A deleted dentry && profile is not allowing mediation of deleted
* 2. On some filesystems, newly allocated dentries appear to the
goto out;
}
- /* Determine if the path is connected to the expected root */
- connected = tmp.dentry == root.dentry && tmp.mnt == root.mnt;
-
- /* If the path is not connected,
+ /* If the path is not connected to the expected root,
* check if it is a sysctl and handle specially else remove any
* leading / that __d_path may have returned.
* Unless
* namespace root.
*/
if (!connected) {
- /* is the disconnect path a sysctl? */
- if (tmp.dentry->d_sb->s_magic == PROC_SUPER_MAGIC &&
- strncmp(*name, "/sys/", 5) == 0) {
- /* TODO: convert over to using a per namespace
- * control instead of hard coded /proc
- */
- error = prepend(name, *name - buf, "/proc", 5);
- } else if (!(flags & PATH_CONNECT_PATH) &&
+ if (!(flags & PATH_CONNECT_PATH) &&
!(((flags & CHROOT_NSCONNECT) == CHROOT_NSCONNECT) &&
- (tmp.mnt == current->nsproxy->mnt_ns->root &&
- tmp.dentry == tmp.mnt->mnt_root))) {
+ our_mnt(path->mnt))) {
/* disconnected path, don't return pathname starting
* with '/'
*/
}
out:
- path_put(&root);
-
return error;
}
{
char *pos = ERR_PTR(-ENOMEM);
if (buflen >= 256) {
- struct path ns_root = { };
/* go to whatever namespace root we are under */
- pos = __d_path(path, &ns_root, buffer, buflen - 1);
+ pos = d_absolute_path(path, buffer, buflen - 1);
if (!IS_ERR(pos) && *pos == '/' && pos[1]) {
struct inode *inode = path->dentry->d_inode;
if (inode && S_ISDIR(inode->i_mode)) {
pos = tomoyo_get_local_path(path->dentry, buf,
buf_len - 1);
/* Get absolute name for the rest. */
- else
+ else {
pos = tomoyo_get_absolute_path(path, buf, buf_len - 1);
+ /*
+ * Fall back to local name if absolute name is not
+ * available.
+ */
+ if (pos == ERR_PTR(-EINVAL))
+ pos = tomoyo_get_local_path(path->dentry, buf,
+ buf_len - 1);
+ }
encode:
if (IS_ERR(pos))
continue;
SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1043, 0x83ce, "ASUS 1101HA", POS_FIX_LPIB),
SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
/* SCH */
{ PCI_DEVICE(0x8086, 0x811b),
.driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
- AZX_DCAPS_BUFSIZE},
+ AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_LPIB }, /* Poulsbo */
+ /* ICH */
{ PCI_DEVICE(0x8086, 0x2668),
.driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
AZX_DCAPS_BUFSIZE }, /* ICH6 */
imux = &spec->input_mux[mux_idx];
if (!imux->num_items && mux_idx > 0)
imux = &spec->input_mux[0];
+ if (!imux->num_items)
+ return 0;
if (idx >= imux->num_items)
idx = imux->num_items - 1;
case AUTO_PIN_SPEAKER_OUT:
if (cfg->line_outs == 1)
return "Speaker";
+ if (cfg->line_outs == 2)
+ return ch ? "Bass Speaker" : "Speaker";
break;
case AUTO_PIN_HP_OUT:
/* for multi-io case, only the primary out */
if (!nid)
continue;
if (found_in_nid_list(nid, spec->multiout.dac_nids,
- spec->multiout.num_dacs))
+ ARRAY_SIZE(spec->private_dac_nids)))
continue;
if (found_in_nid_list(nid, spec->multiout.hp_out_nid,
ARRAY_SIZE(spec->multiout.hp_out_nid)))
return 0;
}
+/* return 0 if no possible DAC is found, 1 if one or more found */
static int alc_auto_fill_extra_dacs(struct hda_codec *codec, int num_outs,
const hda_nid_t *pins, hda_nid_t *dacs)
{
if (!dacs[i])
dacs[i] = alc_auto_look_for_dac(codec, pins[i]);
}
- return 0;
+ return 1;
}
static int alc_auto_fill_multi_ios(struct hda_codec *codec,
static int alc_auto_fill_dac_nids(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
- const struct auto_pin_cfg *cfg = &spec->autocfg;
+ struct auto_pin_cfg *cfg = &spec->autocfg;
bool redone = false;
int i;
spec->multiout.extra_out_nid[0] = 0;
memset(spec->private_dac_nids, 0, sizeof(spec->private_dac_nids));
spec->multiout.dac_nids = spec->private_dac_nids;
+ spec->multi_ios = 0;
/* fill hard-wired DACs first */
if (!redone) {
for (i = 0; i < cfg->line_outs; i++) {
if (spec->private_dac_nids[i])
spec->multiout.num_dacs++;
- else
+ else {
memmove(spec->private_dac_nids + i,
spec->private_dac_nids + i + 1,
sizeof(hda_nid_t) * (cfg->line_outs - i - 1));
+ spec->private_dac_nids[cfg->line_outs - 1] = 0;
+ }
}
if (cfg->line_outs == 1 && cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
if (cfg->line_out_type != AUTO_PIN_HP_OUT)
alc_auto_fill_extra_dacs(codec, cfg->hp_outs, cfg->hp_pins,
spec->multiout.hp_out_nid);
- if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
- alc_auto_fill_extra_dacs(codec, cfg->speaker_outs, cfg->speaker_pins,
- spec->multiout.extra_out_nid);
+ if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
+ int err = alc_auto_fill_extra_dacs(codec, cfg->speaker_outs,
+ cfg->speaker_pins,
+ spec->multiout.extra_out_nid);
+ /* if no speaker volume is assigned, try again as the primary
+ * output
+ */
+ if (!err && cfg->speaker_outs > 0 &&
+ cfg->line_out_type == AUTO_PIN_HP_OUT) {
+ cfg->hp_outs = cfg->line_outs;
+ memcpy(cfg->hp_pins, cfg->line_out_pins,
+ sizeof(cfg->hp_pins));
+ cfg->line_outs = cfg->speaker_outs;
+ memcpy(cfg->line_out_pins, cfg->speaker_pins,
+ sizeof(cfg->speaker_pins));
+ cfg->speaker_outs = 0;
+ memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
+ cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
+ redone = false;
+ goto again;
+ }
+ }
return 0;
}
}
static int alc_auto_create_extra_out(struct hda_codec *codec, hda_nid_t pin,
- hda_nid_t dac, const char *pfx)
+ hda_nid_t dac, const char *pfx,
+ int cidx)
{
struct alc_spec *spec = codec->spec;
hda_nid_t sw, vol;
if (is_ctl_used(spec->sw_ctls, val))
return 0; /* already created */
mark_ctl_usage(spec->sw_ctls, val);
- return add_pb_sw_ctrl(spec, ALC_CTL_WIDGET_MUTE, pfx, val);
+ return __add_pb_sw_ctrl(spec, ALC_CTL_WIDGET_MUTE, pfx, cidx, val);
}
sw = alc_look_for_out_mute_nid(codec, pin, dac);
vol = alc_look_for_out_vol_nid(codec, pin, dac);
- err = alc_auto_add_stereo_vol(codec, pfx, 0, vol);
+ err = alc_auto_add_stereo_vol(codec, pfx, cidx, vol);
if (err < 0)
return err;
- err = alc_auto_add_stereo_sw(codec, pfx, 0, sw);
+ err = alc_auto_add_stereo_sw(codec, pfx, cidx, sw);
if (err < 0)
return err;
return 0;
hda_nid_t dac = *dacs;
if (!dac)
dac = spec->multiout.dac_nids[0];
- return alc_auto_create_extra_out(codec, *pins, dac, pfx);
+ return alc_auto_create_extra_out(codec, *pins, dac, pfx, 0);
}
if (dacs[num_pins - 1]) {
/* OK, we have a multi-output system with individual volumes */
for (i = 0; i < num_pins; i++) {
- snprintf(name, sizeof(name), "%s %s",
- pfx, channel_name[i]);
- err = alc_auto_create_extra_out(codec, pins[i], dacs[i],
- name);
+ if (num_pins >= 3) {
+ snprintf(name, sizeof(name), "%s %s",
+ pfx, channel_name[i]);
+ err = alc_auto_create_extra_out(codec, pins[i], dacs[i],
+ name, 0);
+ } else {
+ err = alc_auto_create_extra_out(codec, pins[i], dacs[i],
+ pfx, i);
+ }
if (err < 0)
return err;
}
unsigned int gpio_mute;
unsigned int gpio_led;
unsigned int gpio_led_polarity;
+ unsigned int vref_mute_led_nid; /* pin NID for mute-LED vref control */
unsigned int vref_led;
/* stream */
spec->eapd_switch = val;
get_int_hint(codec, "gpio_led_polarity", &spec->gpio_led_polarity);
if (get_int_hint(codec, "gpio_led", &spec->gpio_led)) {
- if (spec->gpio_led <= 8) {
- spec->gpio_mask |= spec->gpio_led;
- spec->gpio_dir |= spec->gpio_led;
- if (spec->gpio_led_polarity)
- spec->gpio_data |= spec->gpio_led;
- }
+ spec->gpio_mask |= spec->gpio_led;
+ spec->gpio_dir |= spec->gpio_led;
+ if (spec->gpio_led_polarity)
+ spec->gpio_data |= spec->gpio_led;
}
}
/* power on when no jack detection is available */
/* or when the VREF is used for controlling LED */
if (!spec->hp_detect ||
- (spec->gpio_led > 8 && spec->gpio_led == nid)) {
+ spec->vref_mute_led_nid == nid) {
stac_toggle_power_map(codec, nid, 1);
continue;
}
if (sscanf(dev->name, "HP_Mute_LED_%d_%x",
&spec->gpio_led_polarity,
&spec->gpio_led) == 2) {
- if (spec->gpio_led < 4)
+ unsigned int max_gpio;
+ max_gpio = snd_hda_param_read(codec, codec->afg,
+ AC_PAR_GPIO_CAP);
+ max_gpio &= AC_GPIO_IO_COUNT;
+ if (spec->gpio_led < max_gpio)
spec->gpio_led = 1 << spec->gpio_led;
+ else
+ spec->vref_mute_led_nid = spec->gpio_led;
return 1;
}
if (sscanf(dev->name, "HP_Mute_LED_%d",
set_hp_led_gpio(codec);
return 1;
}
+ /* BIOS bug: unfilled OEM string */
+ if (strstr(dev->name, "HP_Mute_LED_P_G")) {
+ set_hp_led_gpio(codec);
+ spec->gpio_led_polarity = 1;
+ return 1;
+ }
}
/*
struct sigmatel_spec *spec = codec->spec;
/* sync mute LED */
- if (spec->gpio_led) {
- if (spec->gpio_led <= 8) {
- stac_gpio_set(codec, spec->gpio_mask,
- spec->gpio_dir, spec->gpio_data);
- } else {
- stac_vrefout_set(codec,
- spec->gpio_led, spec->vref_led);
- }
- }
+ if (spec->vref_mute_led_nid)
+ stac_vrefout_set(codec, spec->vref_mute_led_nid,
+ spec->vref_led);
+ else if (spec->gpio_led)
+ stac_gpio_set(codec, spec->gpio_mask,
+ spec->gpio_dir, spec->gpio_data);
return 0;
}
struct sigmatel_spec *spec = codec->spec;
if (power_state == AC_PWRST_D3) {
- if (spec->gpio_led > 8) {
+ if (spec->vref_mute_led_nid) {
/* with vref-out pin used for mute led control
* codec AFG is prevented from D3 state
*/
}
}
/*polarity defines *not* muted state level*/
- if (spec->gpio_led <= 8) {
+ if (!spec->vref_mute_led_nid) {
if (muted)
spec->gpio_data &= ~spec->gpio_led; /* orange */
else
muted_lvl = spec->gpio_led_polarity ?
AC_PINCTL_VREF_GRD : AC_PINCTL_VREF_HIZ;
spec->vref_led = muted ? muted_lvl : notmtd_lvl;
- stac_vrefout_set(codec, spec->gpio_led, spec->vref_led);
+ stac_vrefout_set(codec, spec->vref_mute_led_nid,
+ spec->vref_led);
}
return 0;
}
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (spec->gpio_led) {
- if (spec->gpio_led <= 8) {
+ if (!spec->vref_mute_led_nid) {
spec->gpio_mask |= spec->gpio_led;
spec->gpio_dir |= spec->gpio_led;
spec->gpio_data |= spec->gpio_led;
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (spec->gpio_led) {
- if (spec->gpio_led <= 8) {
+ if (!spec->vref_mute_led_nid) {
spec->gpio_mask |= spec->gpio_led;
spec->gpio_dir |= spec->gpio_led;
spec->gpio_data |= spec->gpio_led;
static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
static int enable = 1;
+static int codecs = 1;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for SiS7019 Audio Accelerator.");
MODULE_PARM_DESC(id, "ID string for SiS7019 Audio Accelerator.");
module_param(enable, bool, 0444);
MODULE_PARM_DESC(enable, "Enable SiS7019 Audio Accelerator.");
+module_param(codecs, int, 0444);
+MODULE_PARM_DESC(codecs, "Set bit to indicate that codec number is expected to be present (default 1)");
static DEFINE_PCI_DEVICE_TABLE(snd_sis7019_ids) = {
{ PCI_DEVICE(PCI_VENDOR_ID_SI, 0x7019) },
dma_addr_t silence_dma_addr;
};
+/* These values are also used by the module param 'codecs' to indicate
+ * which codecs should be present.
+ */
#define SIS_PRIMARY_CODEC_PRESENT 0x0001
#define SIS_SECONDARY_CODEC_PRESENT 0x0002
#define SIS_TERTIARY_CODEC_PRESENT 0x0004
{
unsigned long io = sis->ioport;
void __iomem *ioaddr = sis->ioaddr;
+ unsigned long timeout;
u16 status;
int count;
int i;
while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count)
udelay(1);
+ /* Command complete, we can let go of the semaphore now.
+ */
+ outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);
+ if (!count)
+ return -EIO;
+
/* Now that we've finished the reset, find out what's attached.
+ * There are some codec/board combinations that take an extremely
+ * long time to come up. 350+ ms has been observed in the field,
+ * so we'll give them up to 500ms.
*/
- status = inl(io + SIS_AC97_STATUS);
- if (status & SIS_AC97_STATUS_CODEC_READY)
- sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT;
- if (status & SIS_AC97_STATUS_CODEC2_READY)
- sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT;
- if (status & SIS_AC97_STATUS_CODEC3_READY)
- sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT;
-
- /* All done, let go of the semaphore, and check for errors
+ sis->codecs_present = 0;
+ timeout = msecs_to_jiffies(500) + jiffies;
+ while (time_before_eq(jiffies, timeout)) {
+ status = inl(io + SIS_AC97_STATUS);
+ if (status & SIS_AC97_STATUS_CODEC_READY)
+ sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT;
+ if (status & SIS_AC97_STATUS_CODEC2_READY)
+ sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT;
+ if (status & SIS_AC97_STATUS_CODEC3_READY)
+ sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT;
+
+ if (sis->codecs_present == codecs)
+ break;
+
+ msleep(1);
+ }
+
+ /* All done, check for errors.
*/
- outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);
- if (!sis->codecs_present || !count)
+ if (!sis->codecs_present) {
+ printk(KERN_ERR "sis7019: could not find any codecs\n");
return -EIO;
+ }
+
+ if (sis->codecs_present != codecs) {
+ printk(KERN_WARNING "sis7019: missing codecs, found %0x, expected %0x\n",
+ sis->codecs_present, codecs);
+ }
/* Let the hardware know that the audio driver is alive,
* and enable PCM slots on the AC-link for L/R playback (3 & 4) and
if (!enable)
goto error_out;
+ /* The user can specify which codecs should be present so that we
+ * can wait for them to show up if they are slow to recover from
+ * the AC97 cold reset. We default to a single codec, the primary.
+ *
+ * We assume that SIS_PRIMARY_*_PRESENT matches bits 0-2.
+ */
+ codecs &= SIS_PRIMARY_CODEC_PRESENT | SIS_SECONDARY_CODEC_PRESENT |
+ SIS_TERTIARY_CODEC_PRESENT;
+ if (!codecs)
+ codecs = SIS_PRIMARY_CODEC_PRESENT;
+
rc = snd_card_create(index, id, THIS_MODULE, sizeof(*sis), &card);
if (rc < 0)
goto error_out;
select SND_SOC_CX20442
select SND_SOC_DA7210 if I2C
select SND_SOC_DFBMCS320
- select SND_SOC_JZ4740_CODEC if SOC_JZ4740
+ select SND_SOC_JZ4740_CODEC
select SND_SOC_LM4857 if I2C
select SND_SOC_MAX98088 if I2C
select SND_SOC_MAX98095 if I2C
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/io.h>
#include <linux/delay.h>
static int __init uda1380_modinit(void)
{
- int ret;
+ int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
ret = i2c_add_driver(&uda1380_i2c_driver);
if (ret != 0)
pr_err("Failed to register UDA1380 I2C driver: %d\n", ret);
#endif
- return 0;
+ return ret;
}
module_init(uda1380_modinit);
}
if (memcmp(fw->data, "WMFW", 4) != 0) {
+ memcpy(&data32, fw->data, sizeof(data32));
+ data32 = be32_to_cpu(data32);
dev_err(codec->dev, "%s: firmware has bad file magic %08x\n",
name, data32);
goto err;
};
static const struct snd_soc_dapm_widget wm8994_adc_revd_widgets[] = {
-SND_SOC_DAPM_MUX_E("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux,
- adc_mux_ev, SND_SOC_DAPM_PRE_PMU),
-SND_SOC_DAPM_MUX_E("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux,
- adc_mux_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_VIRT_MUX_E("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux,
+ adc_mux_ev, SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_VIRT_MUX_E("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux,
+ adc_mux_ev, SND_SOC_DAPM_PRE_PMU),
};
static const struct snd_soc_dapm_widget wm8994_adc_widgets[] = {
-SND_SOC_DAPM_MUX("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux),
-SND_SOC_DAPM_MUX("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux),
+SND_SOC_DAPM_VIRT_MUX("ADCL Mux", WM8994_POWER_MANAGEMENT_4, 1, 0, &adcl_mux),
+SND_SOC_DAPM_VIRT_MUX("ADCR Mux", WM8994_POWER_MANAGEMENT_4, 0, 0, &adcr_mux),
};
static const struct snd_soc_dapm_widget wm8994_dapm_widgets[] = {
break;
case 24576000:
ratediv = WM8996_SYSCLK_DIV;
+ wm8996->sysclk /= 2;
case 12288000:
snd_soc_update_bits(codec, WM8996_AIF_RATE,
WM8996_SYSCLK_RATE, WM8996_SYSCLK_RATE);
config SND_SOC_MX27VIS_AIC32X4
tristate "SoC audio support for Visstrim M10 boards"
- depends on MACH_IMX27_VISSTRIM_M10
+ depends on MACH_IMX27_VISSTRIM_M10 && I2C
select SND_SOC_TLV320AIC32X4
select SND_MXC_SOC_MX2
help
config SND_KIRKWOOD_SOC_OPENRD
tristate "SoC Audio support for Kirkwood Openrd Client"
depends on SND_KIRKWOOD_SOC && (MACH_OPENRD_CLIENT || MACH_OPENRD_ULTIMATE)
+ depends on I2C
select SND_KIRKWOOD_SOC_I2S
select SND_SOC_CS42L51
help
config SND_KIRKWOOD_SOC_T5325
tristate "SoC Audio support for HP t5325"
- depends on SND_KIRKWOOD_SOC && MACH_T5325
+ depends on SND_KIRKWOOD_SOC && MACH_T5325 && I2C
select SND_KIRKWOOD_SOC_I2S
select SND_SOC_ALC5623
help
platform_driver_unregister(&mxs_pcm_driver);
}
module_exit(snd_mxs_pcm_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mxs-pcm-audio");
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("MXS ALSA SoC Machine driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mxs-sgtl5000");
config SND_SOC_RAUMFELD
tristate "SoC Audio support Raumfeld audio adapter"
depends on SND_PXA2XX_SOC && (MACH_RAUMFELD_SPEAKER || MACH_RAUMFELD_CONNECTOR)
+ depends on I2C && SPI_MASTER
select SND_PXA_SOC_SSP
select SND_SOC_CS4270
select SND_SOC_AK4104
config SND_PXA2XX_SOC_HX4700
tristate "SoC Audio support for HP iPAQ hx4700"
- depends on SND_PXA2XX_SOC && MACH_H4700
+ depends on SND_PXA2XX_SOC && MACH_H4700 && I2C
select SND_PXA2XX_SOC_I2S
select SND_SOC_AK4641
help
snd_soc_card_hx4700.dev = &pdev->dev;
ret = snd_soc_register_card(&snd_soc_card_hx4700);
if (ret)
- return ret;
+ gpio_free_array(hx4700_audio_gpios,
+ ARRAY_SIZE(hx4700_audio_gpios));
- return 0;
+ return ret;
}
static int __devexit hx4700_audio_remove(struct platform_device *pdev)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
- int err;
/* These endpoints are not being used. */
snd_soc_dapm_nc_pin(dapm, "LINPUT2");
.dai_link = &jive_dai,
.num_links = 1,
- .dapm_widgtets = wm8750_dapm_widgets,
+ .dapm_widgets = wm8750_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
.dapm_routes = audio_map,
.num_dapm_routes = ARRAY_SIZE(audio_map),
*
*/
+#include <linux/module.h>
#include <sound/soc.h>
static struct snd_soc_card smdk2443;
}
EXPORT_SYMBOL_GPL(snd_soc_params_to_bclk);
-static struct snd_soc_platform_driver dummy_platform;
+static const struct snd_pcm_hardware dummy_dma_hardware = {
+ .formats = 0xffffffff,
+ .channels_min = 1,
+ .channels_max = UINT_MAX,
+
+ /* Random values to keep userspace happy when checking constraints */
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER,
+ .buffer_bytes_max = 128*1024,
+ .period_bytes_min = PAGE_SIZE,
+ .period_bytes_max = PAGE_SIZE*2,
+ .periods_min = 2,
+ .periods_max = 128,
+};
+
+static int dummy_dma_open(struct snd_pcm_substream *substream)
+{
+ snd_soc_set_runtime_hwparams(substream, &dummy_dma_hardware);
+
+ return 0;
+}
+
+static struct snd_pcm_ops dummy_dma_ops = {
+ .open = dummy_dma_open,
+ .ioctl = snd_pcm_lib_ioctl,
+};
+
+static struct snd_soc_platform_driver dummy_platform = {
+ .ops = &dummy_dma_ops,
+};
static __devinit int snd_soc_dummy_probe(struct platform_device *pdev)
{
list_for_each_entry(counter, &evsel_list->entries, node) {
if (create_perf_stat_counter(counter, first) < 0) {
- if (errno == EINVAL || errno == ENOSYS || errno == ENOENT) {
+ if (errno == EINVAL || errno == ENOSYS ||
+ errno == ENOENT || errno == EOPNOTSUPP) {
if (verbose)
ui__warning("%s event is not supported by the kernel.\n",
event_name(counter));
/*
* write event string as passed on cmdline
*/
- ret = do_write_string(fd, attr->name);
+ ret = do_write_string(fd, event_name(attr));
if (ret < 0)
return ret;
/*
projects / firefly-linux-kernel-4.4.55.git / commitdiff