shli@kernel.org [Mon, 15 Dec 2014 01:57:03 +0000 (12:57 +1100)]
raid5: add a new flag to track if a stripe can be batched
A freshly new stripe with write request can be batched. Any time the stripe is
handled or new read is queued, the flag will be cleared.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
shli@kernel.org [Mon, 15 Dec 2014 01:57:02 +0000 (12:57 +1100)]
raid5: use flex_array for scribble data
Use flex_array for scribble data. Next patch will batch several stripes
together, so scribble data should be able to cover several stripes, so this
patch also allocates scribble data for stripes across a chunk.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Heinz Mauelshagen [Fri, 13 Feb 2015 18:48:01 +0000 (19:48 +0100)]
md raid0: access mddev->queue (request queue member) conditionally because it is not set when accessed from dm-raid
The patch makes 3 references to mddev->queue in the raid0 personality
conditional in order to allow for it to be accessed from dm-raid.
Mandatory, because md instances underneath dm-raid don't manage
a request queue of their own which'd lead to oopses without the patch.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Tested-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Thu, 19 Feb 2015 05:55:00 +0000 (16:55 +1100)]
md: allow resync to go faster when there is competing IO.
When md notices non-sync IO happening while it is trying
to resync (or reshape or recover) it slows down to the
set minimum.
The default minimum might have made sense many years ago
but the drives have become faster. Changing the default
to match the times isn't really a long term solution.
This patch changes the code so that instead of waiting until the speed
has dropped to the target, it just waits until pending requests
have completed.
This means that the delay inserted is a function of the speed
of the devices.
Testing shows that:
- for some loads, the resync speed is unchanged. For those loads
increasing the minimum doesn't change the speed either.
So this is a good result. To increase resync speed under such
loads we would probably need to increase the resync window
size.
- for other loads, resync speed does increase to a reasonable
fraction (e.g. 20%) of maximum possible, and throughput of
the load only drops a little bit (e.g. 10%)
- for other loads, throughput of the non-sync load drops quite a bit
more. These seem to be latency-sensitive loads.
So it isn't a perfect solution, but it is mostly an improvement.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Thu, 19 Feb 2015 05:04:40 +0000 (16:04 +1100)]
md: remove 'go_faster' option from ->sync_request()
This option is not well justified and testing suggests that
it hardly ever makes any difference.
The comment suggests there might be a need to wait for non-resync
activity indicated by ->nr_waiting, however raise_barrier()
already waits for all of that.
So just remove it to simplify reasoning about speed limiting.
This allows us to remove a 'FIXME' comment from raid5.c as that
never used the flag.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 23 Mar 2015 06:36:38 +0000 (17:36 +1100)]
md: don't require sync_min to be a multiple of chunk_size.
There is really no need for sync_min to be a multiple of
chunk_size, and values read from here often aren't.
That means you cannot read a value and expect to be able
to write it back later.
So remove the chunk_size check, and round down to a multiple
of 4K, to be sure everything works with 4K-sector devices.
Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Tue, 21 Apr 2015 22:00:20 +0000 (08:00 +1000)]
Merge branch 'cluster' into for-next
Goldwyn Rodrigues [Tue, 14 Apr 2015 15:45:42 +0000 (10:45 -0500)]
md-cluster: re-add capabilities
When "re-add" is writted to /sys/block/mdXX/md/dev-YYY/state,
the clustered md:
1. Sends RE_ADD message with the desc_nr. Nodes receiving the message
clear the Faulty bit in their respective rdev->flags.
2. The node initiating re-add, gathers the bitmaps of all nodes
and copies them into the local bitmap. It does not clear the bitmap
from which it is copying.
3. Initiating node schedules a md recovery to sync the devices.
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Goldwyn Rodrigues [Tue, 14 Apr 2015 15:45:22 +0000 (10:45 -0500)]
md: re-add a failed disk
This adds the capability of re-adding a failed disk by
writing "re-add" to /sys/block/mdXX/md/dev-YYY/state.
This facilitates adding disks which have encountered a temporary
error such as a network disconnection/hiccup in an iSCSI device,
or a SAN cable disconnection which has been restored. In such
a situation, you do not need to remove and re-add the device.
Writing re-add to the failed device's state would add it again
to the array and perform the recovery of only the blocks which
were written after the device failed.
This works for generic md, and is not related to clustering. However,
this patch is to ease re-add operations listed above in clustering
environments.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Goldwyn Rodrigues [Tue, 14 Apr 2015 15:44:44 +0000 (10:44 -0500)]
md-cluster: remove capabilities
This adds "remove" capabilities for the clustered environment.
When a user initiates removal of a device from the array, a
REMOVE message with disk number in the array is sent to all
the nodes which kick the respective device in their own array.
This facilitates the removal of failed devices.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Goldwyn Rodrigues [Tue, 14 Apr 2015 15:43:55 +0000 (10:43 -0500)]
md: Export and rename find_rdev_nr_rcu
This is required by the clustering module (patches to follow) to
find the device to remove or re-add.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Goldwyn Rodrigues [Tue, 14 Apr 2015 15:43:24 +0000 (10:43 -0500)]
md: Export and rename kick_rdev_from_array
This export is required for clustering module in order to
co-ordinate remove/readd a rdev from all nodes.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Guoqing Jiang [Tue, 21 Apr 2015 16:25:52 +0000 (11:25 -0500)]
md-cluster: correct the num for comparison
Since the node num of md-cluster is from zero, and
cinfo->slot_number represents the slot num of dlm,
no need to check for equality.
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Eran Ben Elisha [Tue, 21 Apr 2015 12:46:34 +0000 (15:46 +0300)]
net/mlx4_core: Fix reading HCA max message size in mlx4_QUERY_DEV_CAP
Currently we parse max_msg_sz from the wrong offset in QUERY_DEV_CAP,
fix to use the right offset.
Fixes: 0b131561a7d6 ('net/mlx4_en: Add Flow control statistics [..]')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjorn Helgaas [Tue, 21 Apr 2015 19:57:26 +0000 (14:57 -0500)]
ia64/PCI: Treat all host bridge Address Space Descriptors (even consumers) as windows
Prior to
c770cb4cb505 ("PCI: Mark invalid BARs as unassigned"), if we tried
to claim a PCI BAR but could not find an upstream bridge window that
matched it, we complained but still allowed the device to be enabled.
c770cb4cb505 broke devices that previously worked (mptsas and igb in the
case Tony reported, but it could be any devices) because it marks those
BARs as IORESOURCE_UNSET, which makes pci_enable_device() complain and
return failure:
igb 0000:81:00.0: can't enable device: BAR 0 [mem size 0x00020000] not assigned
igb: probe of 0000:81:00.0 failed with error -22
The underlying cause is an ACPI Address Space Descriptor for a PCI host
bridge window that is marked as "consumer". This is a firmware defect:
resources that are produced on the downstream side of a bridge should be
marked "producer". But rejecting these BARs that we previously allowed is
a functionality regression, and firmware has not used the producer/consumer
bit consistently, so we can't rely on it anyway.
Stop checking the producer/consumer bit, and assume all bridge Address
Space Descriptors are for bridge windows.
Note that this change does not affect I/O Port or Fixed Location I/O Port
Descriptors, which are commonly used for the [io 0x0cf8-0x0cff] config
access range. That range is a "consumer" range and should not be treated
as a window.
Fixes: c770cb4cb505 ("PCI: Mark invalid BARs as unassigned")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=96961
Reported-and-tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Sowmini Varadhan [Tue, 21 Apr 2015 14:30:41 +0000 (10:30 -0400)]
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andreas Gruenbacher [Fri, 27 Mar 2015 16:50:00 +0000 (17:50 +0100)]
uapi: Remove kernel internal declaration
The enum nfs4_acl_whotype is only used in nfs4d's internal nfs4 acl
representation. No longer expose it to user space.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Giuseppe Cantavenera [Mon, 20 Apr 2015 16:00:08 +0000 (18:00 +0200)]
nfsd: fix nsfd startup race triggering BUG_ON
nfsd triggered a BUG_ON in net_generic(...) when rpc_pipefs_event(...)
in fs/nfsd/nfs4recover.c was called before assigning ntfsd_net_id.
The following was observed on a MIPS 32-core processor:
kernel: Call Trace:
kernel: [<
ffffffffc00bc5e4>] rpc_pipefs_event+0x7c/0x158 [nfsd]
kernel: [<
ffffffff8017a2a0>] notifier_call_chain+0x70/0xb8
kernel: [<
ffffffff8017a4e4>] __blocking_notifier_call_chain+0x4c/0x70
kernel: [<
ffffffff8053aff8>] rpc_fill_super+0xf8/0x1a0
kernel: [<
ffffffff8022204c>] mount_ns+0xb4/0xf0
kernel: [<
ffffffff80222b48>] mount_fs+0x50/0x1f8
kernel: [<
ffffffff8023dc00>] vfs_kern_mount+0x58/0xf0
kernel: [<
ffffffff802404ac>] do_mount+0x27c/0xa28
kernel: [<
ffffffff80240cf0>] SyS_mount+0x98/0xe8
kernel: [<
ffffffff80135d24>] handle_sys64+0x44/0x68
kernel:
kernel:
Code:
0040f809 00000000 2e020001 <
00020336>
3c12c00d
3c02801a de100000 6442eb98 0040f809
kernel: ---[ end trace
7471374335809536 ]---
Fixed this behaviour by calling register_pernet_subsys(&nfsd_net_ops) before
registering rpc_pipefs_event(...) with the notifier chain.
Signed-off-by: Giuseppe Cantavenera <giuseppe.cantavenera.ext@nokia.com>
Signed-off-by: Lorenzo Restelli <lorenzo.restelli.ext@nokia.com>
Reviewed-by: Kinlong Mee <kinglongmee@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Mark Salter [Mon, 6 Apr 2015 13:46:00 +0000 (09:46 -0400)]
nfsd: eliminate NFSD_DEBUG
Commit
f895b252d4edf ("sunrpc: eliminate RPC_DEBUG") introduced
use of IS_ENABLED() in a uapi header which leads to a build
failure for userspace apps trying to use <linux/nfsd/debug.h>:
linux/nfsd/debug.h:18:15: error: missing binary operator before token "("
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
^
Since this was only used to define NFSD_DEBUG if CONFIG_SUNRPC_DEBUG
is enabled, replace instances of NFSD_DEBUG with CONFIG_SUNRPC_DEBUG.
Cc: stable@vger.kernel.org
Fixes: f895b252d4edf "sunrpc: eliminate RPC_DEBUG"
Signed-off-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
J. Bruce Fields [Fri, 3 Apr 2015 21:19:41 +0000 (17:19 -0400)]
nfsd4: fix READ permission checking
In the case we already have a struct file (derived from a stateid), we
still need to do permission-checking; otherwise an unauthorized user
could gain access to a file by sniffing or guessing somebody else's
stateid.
Cc: stable@vger.kernel.org
Fixes: dc97618ddda9 "nfsd4: separate splice and readv cases"
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
J. Bruce Fields [Tue, 21 Apr 2015 19:25:39 +0000 (15:25 -0400)]
nfsd4: disallow SEEK with special stateids
If the client uses a special stateid then we'll pass a NULL file to
vfs_llseek.
Fixes: 24bab491220f " NFSD: Implement SEEK"
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: stable@vger.kernel.org
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
David S. Miller [Tue, 21 Apr 2015 20:14:53 +0000 (13:14 -0700)]
sparc64: Use M7 PMC write on all chips T4 and onward.
They both work equally well, and the M7 implementation is
simpler and cheaper (less register writes).
With help from David Ahern.
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjorn Helgaas [Tue, 21 Apr 2015 19:57:45 +0000 (14:57 -0500)]
MAINTAINERS: Remove Mohit Kumar (email bounces)
Email to Mohit Kumar <mohit.kumar@st.com> has been bouncing, so remove the
address from MAINTAINERS and add an entry in CREDITS.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Guenter Roeck [Wed, 15 Apr 2015 20:34:28 +0000 (13:34 -0700)]
parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS
The following warning is seen when compiling parisc images
./arch/parisc/include/asm/pgalloc.h: In function 'pgd_alloc':
./arch/parisc/include/asm/pgalloc.h:29:5: warning: "PT_NLEVELS" is not defined
Some definitions of PT_NLEVELS were missed with the conversion to
CONFIG_PGTABLE_LEVELS.
Fixes: f24ffde43237 ("parisc: expose number of page table levels
on Kconfig level")
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Matthew Wilcox [Fri, 20 Mar 2015 17:37:59 +0000 (13:37 -0400)]
parisc: Eliminate sg_virt_addr() and private scatterlist.h
The only reason to keep parisc's private asm/scatterlist.h was that it
had the macro sg_virt_addr(). Convert all callers to use something else
(sometimes just sg->offset was enough, others should use sg_virt()), and
we can just use the asm-generic scatterlist.h instead.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Dave Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
jbaron@akamai.com [Mon, 20 Apr 2015 20:05:07 +0000 (20:05 +0000)]
tcp: add memory barriers to write space paths
Ensure that we either see that the buffer has write space
in tcp_poll() or that we perform a wakeup from the input
side. Did not run into any actual problem here, but thought
that we should make things explicit.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 21 Apr 2015 19:54:08 +0000 (12:54 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull more input subsystem updates from Dmitry Torokhov:
- an update to Atmel MXT driver that makes it functional on Google
Pixel 2 boxes (both touchpad and touchscreen)
- a new VMware VMMouse driver that should allow us drop X vmmouse
driver that requires root privileges (since it accesses ioports)
- XBox One controllers now support force feedback (rumble)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: lm8333 - fix broken email address
Input: cyapa - fix setting suspend scan rate
Input: elan_i2c - fix calculating number of x and y traces.
Input: elan_i2c - report hovering contacts
Input: elants_i2c - zero-extend hardware ID in firmware name
Input: alps - document separate pointstick button bits for V2 devices
Input: atmel_mxt_ts - add support for Google Pixel 2
Input: xpad - add rumble support for Xbox One controller
Input: ff-core - use new debug macros
Input: add vmmouse driver
Input: elan_i2c - adjust for newer firmware pressure reporting
Linus Torvalds [Tue, 21 Apr 2015 19:49:33 +0000 (12:49 -0700)]
media: remove unused variable that causes a warning
My 'allmodconfig' build is _almost_ free of warnings, and most of the
remaining ones are for legacy drivers that just do bad things that I
can't find it in my black heart to care too much about. But this one
was just annoying me:
drivers/media/v4l2-core/videobuf2-core.c:3256:26: warning: unused variable ‘fileio’ [-Wunused-variable]
because commit
0e661006370b ("[media] vb2: fix 'UNBALANCED' warnings
when calling vb2_thread_stop()") removed all users of 'fileio' and
instead calls "__vb2_cleanup_fileio(q)" to clean up q->fileio. But the
now unused 'fileio' variable was left around.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
J. Bruce Fields [Fri, 3 Apr 2015 20:24:27 +0000 (16:24 -0400)]
nfsd4: disallow ALLOCATE with special stateids
vfs_fallocate will hit a NULL dereference if the client tries an
ALLOCATE or DEALLOCATE with a special stateid. Fix that. (We also
depend on the open to have broken any conflicting leases or delegations
for us.)
(If it turns out we need to allow special stateid's then we could do a
temporary open here in the special-stateid case, as we do for read and
write. For now I'm assuming it's not necessary.)
Fixes: 95d871f03cae "nfsd: Add ALLOCATE support"
Cc: stable@vger.kernel.org
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Dmitry Torokhov [Tue, 21 Apr 2015 18:12:42 +0000 (11:12 -0700)]
Merge branch 'next' into for-linus
Prepare second round of updates for 4.1 merge window.
Linus Torvalds [Tue, 21 Apr 2015 17:01:27 +0000 (10:01 -0700)]
Merge tag 'media/v4.1-2' of git://git./linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- a new frontend driver for new ATSC devices: lgdt3306a
- a new sensor driver: ov2659
- a new platform driver: xilinx
- the m88ts2022 tuner driver was merged at ts2020 driver
- the media controller gained experimental support for DVB and hybrid
devices
- lots of random cleanups, fixes and improvements on media drivers
* tag 'media/v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (404 commits)
[media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRL
[media] uvcvideo: fix cropcap v4l2-compliance failure
[media] media: omap3isp: remove unused clkdev
[media] coda: Add tracing support
[media] coda: drop dma_sync_single_for_device in coda_bitstream_queue
[media] coda: fix fill bitstream errors in nonstreaming case
[media] coda: call SEQ_END when the first queue is stopped
[media] coda: fail to start streaming if userspace set invalid formats
[media] coda: remove duplicate error messages for buffer allocations
[media] coda: move parameter buffer in together with context buffer allocation
[media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
[media] coda: allocate per-context buffers from REQBUFS
[media] coda: use strlcpy instead of snprintf
[media] coda: bitstream payload is unsigned
[media] coda: fix double call to debugfs_remove
[media] coda: check kasprintf return value in coda_open
[media] coda: bitrate can only be set in kbps steps
[media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
[media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_init
[media] coda: set allow_zero_bytesused flag for vb2_queue_init
...
Linus Torvalds [Tue, 21 Apr 2015 16:42:58 +0000 (09:42 -0700)]
Merge tag 'char-misc-4.1-rc1' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver patchset for 4.1-rc1.
Lots of different driver subsystem updates here, nothing major, full
details are in the shortlog.
All of this has been in linux-next for a while"
* tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (133 commits)
mei: trace: remove unused TRACE_SYSTEM_STRING
DTS: ARM: OMAP3-N900: Add lis3lv02d support
Documentation: DT: lis302: update wakeup binding
lis3lv02d: DT: add wakeup unit 2 and wakeup threshold
lis3lv02d: DT: use s32 to support negative values
Drivers: hv: hv_balloon: correctly handle num_pages>INT_MAX case
Drivers: hv: hv_balloon: correctly handle val.freeram<num_pages case
mei: replace check for connection instead of transitioning
mei: use mei_cl_is_connected consistently
mei: fix mei_poll operation
hv_vmbus: Add gradually increased delay for retries in vmbus_post_msg()
Drivers: hv: hv_balloon: survive ballooning request with num_pages=0
Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function
Drivers: hv: hv_balloon: do not online pages in offline blocks
hv: remove the per-channel workqueue
hv: don't schedule new works in vmbus_onoffer()/vmbus_onoffer_rescind()
hv: run non-blocking message handlers in the dispatch tasklet
coresight: moving to new "hwtracing" directory
coresight-tmc: Adding a status interface to sysfs
coresight: remove the unnecessary configuration coresight-default-sink
...
Linus Torvalds [Tue, 21 Apr 2015 16:33:10 +0000 (09:33 -0700)]
Merge tag 'tty-4.1-rc1' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial updates from Greg KH:
"Here's the big tty/serial driver update for 4.1-rc1.
It was delayed for a bit due to some questions surrounding some of the
console command line parsing changes that are in here. There's still
one tiny regression for people who were previously putting multiple
console command lines and expecting them all to be ignored for some
odd reason, but Peter is working on fixing that. If not, I'll send a
revert for the offending patch, but I have faith that Peter can
address it.
Other than the console work here, there's the usual serial driver
updates and changes, and a buch of 8250 reworks to try to make that
driver easier to maintain over time, and have it support more devices
in the future.
All of these have been in linux-next for a while"
* tag 'tty-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits)
n_gsm: Drop unneeded cast on netdev_priv
sc16is7xx: expose RTS inversion in RS-485 mode
serial: 8250_pci: port failed after wakeup from S3
earlycon: 8250: Document kernel command line options
earlycon: 8250: Fix command line regression
earlycon: Fix __earlycon_table stride
tty: clean up the tty time logic a bit
serial: 8250_dw: only get the clock rate in one place
serial: 8250_dw: remove useless ACPI ID check
dmaengine: hsu: move memory allocation to GFP_NOWAIT
dmaengine: hsu: remove redundant pieces of code
serial: 8250_pci: add Intel Tangier support
dmaengine: hsu: add Intel Tangier PCI ID
serial: 8250_pci: replace switch-case by formula for Intel MID
serial: 8250_pci: replace switch-case by formula
tty: cpm_uart: replace CONFIG_8xx by CONFIG_CPM1
serial: jsm: some off by one bugs
serial: xuartps: Fix check in console_setup().
serial: xuartps: Get rid of register access macros.
serial: xuartps: Fix iobase use.
...
Linus Torvalds [Tue, 21 Apr 2015 16:31:26 +0000 (09:31 -0700)]
Merge tag 'pinctrl-v4.1-2' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pincontrol Kconfig fix from Linus Walleij:
"This fixes the annoying Kconfig noise from pin control. Mea Culpa"
* tag 'pinctrl-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: fix allmodconfig noise
Linus Torvalds [Tue, 21 Apr 2015 16:24:09 +0000 (09:24 -0700)]
Merge tag 'clk-for-linus-4.1' of git://git./linux/kernel/git/clk/linux
Pull clock framework updates from Michael Turquette:
"The changes to the common clock framework for 4.0 are mostly new clock
drivers and updates to existing ones for feature enhancements and bug
fixes.
There is more churn than usual in the framework core due to the change
to introduce per-user unique struct clk pointers in 4.0. This caused
several regressions to surface, some of which were sent as fixes to
4.0. New generic clock drivers were added for GPIO- and PWM-based
clock controllers.
Additionally the common clk-divider code recieved several fixes to the
way it rounds rates"
* tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (91 commits)
clk: check ->determine/round_rate() return value in clk_calc_new_rates
clk: at91: usb: propagate rate modification to the parent clk
clk: samsung: exynos4: Disable ARMCLK down feature on Exynos4210 SoC
clk: don't use __initconst for non-const arrays
clk: at91: change to using endian agnositc IO
clk: clk-gpio-gate: Fix active low
clk: Add PWM clock driver
clk: Add clock driver for mb86s7x
clk: pxa: pxa3xx: add missing os timer clock
clk: tegra: Use the proper parent for plld_dsi
clk: tegra: Use generic tegra_osc_clk_init() on Tegra114
clk: tegra: Model oscillator as clock
clk: tegra: Add peripheral registers for bank Y
clk: tegra: Register the proper number of resets
clk: tegra: Remove needless initializations
clk: tegra: Use consistent indentation
clk: tegra: Various whitespace cleanups
clk: tegra: Enable HDA to HDMI clocks on Tegra124
clk: tegra: Fix a bunch of sparse warnings
clk: tegra: Fix typo tabel -> table
...
Linus Torvalds [Tue, 21 Apr 2015 16:17:28 +0000 (09:17 -0700)]
Revert "ocfs2: incorrect check for debugfs returns"
This reverts commit
e2ac55b6a8e337fac7cc59c6f452caac92ab5ee6.
Huang Ying reports that this causes a hang at boot with debugfs disabled.
It is true that the debugfs error checks are kind of confusing, and this
code certainly merits more cleanup and thinking about it, but there's
something wrong with the trivial "check not just for NULL, but for error
pointers too" patch.
Yes, with debugfs disabled, we will end up setting the o2hb_debug_dir
pointer variable to an error pointer (-ENODEV), and then continue as if
everything was fine. But since debugfs is disabled, all the _users_ of
that pointer end up being compiled away, so even though the pointer can
not be dereferenced, that's still fine.
So it's confusing and somewhat questionable, but the "more correct"
error checks end up causing more trouble than they fix.
Reported-by: Huang Ying <ying.huang@intel.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Chengyu Song <csong84@gatech.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nathan Lynch [Fri, 17 Apr 2015 23:39:16 +0000 (00:39 +0100)]
ARM: 8344/1: VDSO: honor CONFIG_VDSO in Makefile
When CONFIG_VDSO=n, the build normally does not enter arch/arm/vdso/
because arch/arm/Makefile does not add it to core-y.
However, if the user runs 'make arch/arm/vdso/' the VDSO targets will
get visited. This is because the VDSO Makefile itself does not
consider the value of CONFIG_VDSO.
It is arguably better and more consistent behavior to generate an
empty built-in.o when CONFIG_VDSO=n and the user attempts to build
arch/arm/vdso/. It's nicer because it doesn't try to build things
that Kconfig dependencies are there to prevent (e.g. the dependency on
AEABI), and it's less confusing than building objects that won't be
used in the final image.
Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Nathan Lynch [Fri, 17 Apr 2015 23:39:00 +0000 (00:39 +0100)]
ARM: 8343/1: VDSO: add build artifacts to .gitignore
vdsomunge and vdso.so.raw are outputs that don't get matched by the
normal ignore rules.
Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 19 Apr 2015 19:28:53 +0000 (20:28 +0100)]
ARM: Fix nommu booting
Commit
bf35706f3d09 ("ARM: 8314/1: replace PROCINFO embedded branch with
relative offset") broke booting on nommu platforms as it didn't update
the nommu boot code. This patch fixes that oversight.
Fixes: bf35706f3d09 ("ARM: 8314/1: replace PROCINFO embedded branch with relative offset")
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mauro Carvalho Chehab [Tue, 21 Apr 2015 09:33:03 +0000 (06:33 -0300)]
Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits)
media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
hexdump: avoid warning in test function
fs: take i_mutex during prepare_binprm for set[ug]id executables
smp: Fix error case handling in smp_call_function_*()
iommu-common: Fix PARISC compile-time warnings
sparc: Make LDC use common iommu poll management functions
sparc: Make sparc64 use scalable lib/iommu-common.c functions
Break up monolithic iommu table/lock into finer graularity pools and lock
sparc: Revert generic IOMMU allocator.
tools/power turbostat: correct dumped pkg-cstate-limit value
tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL
tools/power turbostat: correct DRAM RAPL units on recent Xeon processors
tools/power turbostat: Initial Skylake support
tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
tools/power turbostat: modprobe msr, if needed
tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2
tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names
Bluetooth: hidp: Fix regression with older userspace and flags validation
config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
perf/x86/intel/pt: Fix and clean up error handling in pt_event_add()
...
That solves several merge conflicts:
Documentation/DocBook/media/v4l/subdev-formats.xml
Documentation/devicetree/bindings/vendor-prefixes.txt
drivers/staging/media/mn88473/mn88473.c
include/linux/kconfig.h
include/uapi/linux/media-bus-format.h
The ones at subdev-formats.xml and media-bus-format.h are not trivial.
That's why we opted to merge from DRM.
Mauro Carvalho Chehab [Tue, 21 Apr 2015 09:12:35 +0000 (06:12 -0300)]
Merge branch 'patchwork' into v4l_for_linus
* patchwork: (404 commits)
[media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRL
[media] uvcvideo: fix cropcap v4l2-compliance failure
[media] media: omap3isp: remove unused clkdev
[media] coda: Add tracing support
[media] coda: drop dma_sync_single_for_device in coda_bitstream_queue
[media] coda: fix fill bitstream errors in nonstreaming case
[media] coda: call SEQ_END when the first queue is stopped
[media] coda: fail to start streaming if userspace set invalid formats
[media] coda: remove duplicate error messages for buffer allocations
[media] coda: move parameter buffer in together with context buffer allocation
[media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
[media] coda: allocate per-context buffers from REQBUFS
[media] coda: use strlcpy instead of snprintf
[media] coda: bitstream payload is unsigned
[media] coda: fix double call to debugfs_remove
[media] coda: check kasprintf return value in coda_open
[media] coda: bitrate can only be set in kbps steps
[media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
[media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_init
[media] coda: set allow_zero_bytesused flag for vb2_queue_init
...
Andreas Oetken [Mon, 20 Apr 2015 22:16:38 +0000 (00:16 +0200)]
altera tse: Error-Bit on tx-avalon-stream always set.
The Error-Bit on the avalon streaming interface of the
tx-dma-channel was always set. In SGMII configurations
this leads to error-symbols on the PCS and packet-rejection
on the receiver side (e.g. SGMII/1000Base-X connected switch).
This only applies to the tse-configuration with MSGDMA.
This issue was detected and fixed on a custom board with
a direct connection to a Marvell switch in SGMII-PHY-Mode.
(incl. custom patches for SGMII-PCS).
According to the datasheet if ff_tx_err (avalon-streaming)
is set it is forwarded to gm_tx_err. As a result the PCS
is forwarding the error by sending a "/V/"-caracter.
Signed-off-by: Andreas Oetken <ennoerlangen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vivien Didelot [Mon, 20 Apr 2015 21:43:26 +0000 (17:43 -0400)]
net: dsa: mv88e6xxx: use PORT_DEFAULT_VLAN
Minor, use the explicit PORT_DEFAULT_VLAN define instead of 0x07.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vivien Didelot [Mon, 20 Apr 2015 21:19:23 +0000 (17:19 -0400)]
net: dsa: mv88e6xxx: fix setup of port control 1
mv88e6xxx_setup_port_common was writing to PORT_DEFAULT_VLAN (port
offset 0x07) instead of PORT_CONTROL_1 (port offset 0x05).
Fixes: cca8b1337541 ("net: dsa: Use mnemonics rather than register numbers")
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 21 Apr 2015 01:57:26 +0000 (21:57 -0400)]
Merge branch 'ppp_csum_unset'
Tom Herbert says:
====================
net: Fix "hw csum failure" message flood for ppp tunnel
This patch set addresses bug "Bug 95171 - "hw csum failure" message
flood for ppp tunnel since upgrade to 3.16". The problem is that pppoe
is being used over UDP with UDP checksusm enabled. On receive
checksum conversion turns checksum-unnecessary in checksum-
complete. The PPP receive functions do not properly pull
the checksum over its headers, so that when an encapsulated
checksums is considered the checksum-complete value is incorrect.
This patch adds skb_checksum_complete_unset which can be called
in the receive path in lieu of pulling checksum complete in
layer. This is useful when the packet is being modified (e.g.
decompressed) and the checksum-complete value is no longer
relevant.
In the ppp_receive_frame we call skb_checksum_complete_unset to toss
out checksum-complete. This should eliminate the reported messages.
Alternatively, we could add skb_postpull_rcsum and probably
special case handling for VJ compression if maintaining the
checksum-complete is needed (not clear to me this is worth the
effort).
I haven't tested this since setting up the failure scenario doesn't
seem trivial to configure.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Mon, 20 Apr 2015 21:10:05 +0000 (14:10 -0700)]
ppp: call skb_checksum_complete_unset in ppp_receive_frame
Call checksum_complete_unset in PPP receive to discard checksum-complete
value. PPP does not pull checksum for headers and also modifies packet
as in VJ compression.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Mon, 20 Apr 2015 21:10:04 +0000 (14:10 -0700)]
net: add skb_checksum_complete_unset
This function changes ip_summed to CHECKSUM_NONE if CHECKSUM_COMPLETE
is set. This is called to discard checksum-complete when packet
is being modified and checksum is not pulled for headers in a layer.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 20 Apr 2015 22:40:10 +0000 (15:40 -0700)]
Merge tag 'remoteproc-4.1-next' of git://git./linux/kernel/git/ohad/remoteproc
Pull remoteproc update from Ohad Ben-Cohen:
"Suman Anna is adding remoteproc support for processors not behind
IOMMUs"
* tag 'remoteproc-4.1-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: add IOMMU hardware capability flag
Linus Torvalds [Mon, 20 Apr 2015 22:31:49 +0000 (15:31 -0700)]
Merge branch 'misc' of git://git./linux/kernel/git/mmarek/kbuild
Pull misc kbuild updates:
"This is the remaining part of kbuild stuff for v4.1-rc1:
- One wew coccinelle script and a clarification of the proposed fix
in bugon.coccinelle
- CONFIG_KERNEL_LZ4 support for extract-ikconfig"
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
scripts/coccinelle/misc/bugon.cocci: update bug_on conversion warning
scripts/extract-ikconfig: Support LZ4-compressed images.
irqf_oneshot.cocci: add check of devm_request_threaded_irq()
Linus Torvalds [Mon, 20 Apr 2015 22:25:19 +0000 (15:25 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"I'd like to say these were a set of regressions for the recent merge
window code. Unfortunately, they all predate the merge window code
(stable cc'd).
There are two fixes for data integrity (mostly only showing up on
module removal), an mvsas crash with expander attached SATA devices
which goes back to the dawn of the driver but is only just being
picked up as sas expanders become a standard item in low end server
hardware, an am53c974 one because the interrupt data isn't fully
initialised before the line is and a megaraid_sas one because it uses
smp_processor_id() to select MSI-X queues and that now triggers a
WARN_ON()"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
mvsas: fix panic on expander attached SATA devices
am53c974: Fix crash during modprobe
megaraid_sas: use raw_smp_processor_id()
sd: Fix missing ATO tag check
sd: Unregister integrity profile
Linus Torvalds [Mon, 20 Apr 2015 22:16:25 +0000 (15:16 -0700)]
Merge tag 'fbdev-4.1' of git://git./linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
"Small fixes and improvements to various fbdev drivers"
* tag 'fbdev-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (24 commits)
omapdss: extend pm notifier to handle hibernation
OMAPDSS: Correct video ports description file path in DT binding doc
OMAPDSS: disable VT switch
fbdev: sh_mobile_lcdc: Fix destruction of uninitialized mutex
video: fbdev: sh_mobile_lcdcfb: Fix ROP3 sysfs attribute parsing
fbdev: pm3fb: cleanup some confusing indenting
hyperv: hyperv_fb: match wait_for_completion_timeout return type
video: fbdev: use msecs_to_jiffies for time conversions
fbdev: via/via_clock: fix sparse warning
video: fbdev: make of_device_id array const
fbdev: sm501fb: use memset_io
OMAPDSS: workaround for MFLAG + NV12 issue
OMAPDSS: Add support for MFLAG
OMAPDSS: setup default fifo thresholds
OMAPDSS: DISPC: lock access to DISPC_CONTROL & DISPC_CONFIG
OMAPDSS: DISPC: fix div by zero issue in overlay scaling
OMAPDSS: DISPC: change sync_pclk_edge default value
OMAPDSS: change signal_level & signal_edge enum values
OMAPDSS: DISPC: explicit handling for sync and de levels
OMAPDSS: DISPC: remove OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES
...
Linus Torvalds [Mon, 20 Apr 2015 21:06:06 +0000 (14:06 -0700)]
Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"Highlights:
Core:
- Virtual GEM layer merged, this has been around for a long time, and
it provides a software backed device that allows userspace to use
it as a GEM shared memory handler. This makes it a lot easier to
do certain things when you have no GPU but still have to deal with
DRI expectations.
- atomic helper updates.
- framebuffer modifier interface added.
- i2c over auxch displayport fixes.
- fb width/height confusion fixes.
- new driver for ps8622/ps8625 bridge chips
- lots of new panels
i915:
- more plane atomic conversion
- vGPU guest support for XenGT
- Skylake workarounds and fixes
- Y-tiling support
- work on dynamic pagetable allocation
- EU count report param for gen9+
- CHV fixes (no longer prelim)
- remove ilk rc6
- frontbuffer tracking for fbc
- Displayport link rate refactoring
- sprite colorkey refactor
radeon:
- Displayport MST support (not enabled by default)
- non-ATOM native hw auxch support (DCE5+)
- output csc support
- new queries for userspace debug support
- new VCE packet
nouveau:
- gk20a iommu support
- gm107 graphics support
- more gm20x bringup (waiting on signed nvidia fw).
amdkfd:
- multiple kgd instance support
- use 64-bit time accessors
msm:
- stolen memory support
- DSI and dual-DSI support
- snapdragon 410 support
exynos:
- cleanups for atomic and pageflip
imx-drm:
- more media-bus formats
- TV output prep
- drm panel support
tegra:
- hw vblank counter using host1x syncpoints
omap:
- universal plane support
- prep work for atomic modesetting
rcar-du:
- ported to atomic modesetting
atmel-hlcdc:
- ported to atomic modesetting
- added suspend/resume support
sti:
- ported to atomic modesetting
dwhdmi:
- more compliant audio support
- update rockchip phy support
tda998x:
- DT probing for attached crtcs
- simplified EDID reading
rockchip:
- fixes
adv7511:
- fixes"
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (689 commits)
media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover
drm: fix trivial typo mistake
drm: Make integer overflow checking cover universal cursor updates (v2)
drm/nouveau/bios: fix fetching from acpi on certain systems
drm/nouveau/gr/gm206: initial init+ctx code
drm/nouveau/ce/gm206: enable support via gm204 code
drm/nouveau/fifo/gm206: enable support via gm204 code
drm/nouveau/gr/gm204: initial init+ctx code
drm/nouveau: support for buffer moves via MaxwellDmaCopyA
drm/nouveau/ce/gm204: initial support
drm/nouveau: add support for gm20x fifo channels
drm/nouveau/fifo/gm204: initial support
drm/nouveau/gr/gk104-: prevent reading non-existent regs in intr handler
drm/nouveau/gr/gm107: very slightly demagic part of attrib cb setup
drm/nouveau/gr/gk104-: correct crop/zrop num_active_fbps setting
drm/nouveau/gr/gf100-: add symbolic names for classes
drm/nouveau/gr/gm107: support tpc "strand" ctxsw in gpccs ucode
drm/nouveau/gr/gf100-: support mmio access with gpc offset from gpccs ucode
...
Joakim Tjernlund [Mon, 20 Apr 2015 19:07:48 +0000 (21:07 +0200)]
pppoe: Lacks DST MAC address check
A pppoe session is identified by its session ID and MAC address.
Currently pppoe does not check if the received pkg has the correct
MAC address. This is a problem when the eth I/F is in promisc mode
as then any DST MAC address is accepted.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 20 Apr 2015 18:09:55 +0000 (14:09 -0400)]
Merge branch 'iommu-common-fixes'
Sowmini Varadhan says:
====================
iommu-common build warning fixes.
This patchset has fixes for 2 architectures
- Part 1: x86_64 warnings generated by sparse
- Part 2: allmodconfig build error for powerpc, identified by Guenter Roeck.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Sowmini Varadhan [Sun, 19 Apr 2015 17:13:31 +0000 (13:13 -0400)]
iommu-common: rename iommu_pool_hash to iommu_hash_common
When CONFIG_DEBUG_FORCE_WEAK_PER_CPU is set, the DEFINE_PER_CPU_SECTION
macro will define an extern __pcpu_unique_##name variable that could
conflict with the same definition in powerpc at this time. Avoid that
conflict by renaming iommu_pool_hash in iommu-common.c
Thanks to Guenter Roeck for catching this, and helping to test the fix.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sowmini Varadhan [Sun, 19 Apr 2015 17:13:30 +0000 (13:13 -0400)]
iommu-common: fix x86_64 compiler warnings
Declare iommu_large_alloc as static. Remove extern definition for
iommu_tbl_pool_init().
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sebastian Pöhn [Mon, 20 Apr 2015 07:19:20 +0000 (09:19 +0200)]
ip_forward: Drop frames with attached skb->sk
Initial discussion was:
[FYI] xfrm: Don't lookup sk_policy for timewait sockets
Forwarded frames should not have a socket attached. Especially
tw sockets will lead to panics later-on in the stack.
This was observed with TPROXY assigning a tw socket and broken
policy routing (misconfigured). As a result frame enters
forwarding path instead of input. We cannot solve this in
TPROXY as it cannot know that policy routing is broken.
v2:
Remove useless comment
Signed-off-by: Sebastian Poehn <sebastian.poehn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 20 Apr 2015 17:50:05 +0000 (10:50 -0700)]
Merge tag 'iommu-updates-v4.1' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"Not much this time, but the changes include:
- moving domain allocation into the iommu drivers to prepare for the
introduction of default domains for devices
- fixing the IO page-table code in the AMD IOMMU driver to correctly
encode large page sizes
- extension of the PCI support in the ARM-SMMU driver
- various fixes and cleanups"
* tag 'iommu-updates-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (34 commits)
iommu/amd: Correctly encode huge pages in iommu page tables
iommu/amd: Optimize amd_iommu_iova_to_phys for new fetch_pte interface
iommu/amd: Optimize alloc_new_range for new fetch_pte interface
iommu/amd: Optimize iommu_unmap_page for new fetch_pte interface
iommu/amd: Return the pte page-size in fetch_pte
iommu/amd: Add support for contiguous dma allocator
iommu/amd: Don't allocate with __GFP_ZERO in alloc_coherent
iommu/amd: Ignore BUS_NOTIFY_UNBOUND_DRIVER event
iommu/amd: Use BUS_NOTIFY_REMOVED_DEVICE
iommu/tegra: smmu: Compute PFN mask at runtime
iommu/tegra: gart: Set aperture at domain initialization time
iommu/tegra: Setup aperture
iommu: Remove domain_init and domain_free iommu_ops
iommu/fsl: Make use of domain_alloc and domain_free
iommu/rockchip: Make use of domain_alloc and domain_free
iommu/ipmmu-vmsa: Make use of domain_alloc and domain_free
iommu/shmobile: Make use of domain_alloc and domain_free
iommu/msm: Make use of domain_alloc and domain_free
iommu/tegra-gart: Make use of domain_alloc and domain_free
iommu/tegra-smmu: Make use of domain_alloc and domain_free
...
Tony Lindgren [Mon, 20 Apr 2015 17:36:31 +0000 (10:36 -0700)]
ARM: OMAP2+: Fix booting with configs that don't have MFD_SYSCON
With the recent changes omaps have developed a dependency to MFD_SYSCON.
This is used for system control module generic register area and some
clocks.
We do have it selected in omap2plus_defconfig, but targeted config
files may not have it selected. Let's make sure it's selected like
few other ARM platforms are already doing.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Wolfram Sang [Mon, 20 Apr 2015 17:23:38 +0000 (10:23 -0700)]
Input: lm8333 - fix broken email address
My Pengutronix address is not valid anymore, redirect people to the
Pengutronix kernel team.
Reported-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Dudley Du [Mon, 20 Apr 2015 17:00:05 +0000 (10:00 -0700)]
Input: cyapa - fix setting suspend scan rate
The suspend scan rate value should not exceed 1000, unfortunately when
implementing the limit we used max_t instead of min_t, causing the value to
be at least 1000.
Signed-off-by: Dudley Du <dudl@cypress.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Duson Lin [Mon, 20 Apr 2015 17:19:24 +0000 (10:19 -0700)]
Input: elan_i2c - fix calculating number of x and y traces.
According to Elan's firmware engineers we should not be subtracting 1 form
the raw number of x and y traces so that the pitch size is correct. For
example, if the touchpad x resolution is 2800 and x trace number is 20,
the pitch size of x should be 2800/20 = 140, not 2800/19 = 147.36.
Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Duson Lin [Mon, 20 Apr 2015 16:59:04 +0000 (09:59 -0700)]
Input: elan_i2c - report hovering contacts
When hover is detected report ABS_MT_DISTANCE as 1; for active contacts
the distance is reported as 0.
Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Dmitry Torokhov [Sat, 18 Apr 2015 03:42:47 +0000 (20:42 -0700)]
Input: elants_i2c - zero-extend hardware ID in firmware name
Let's zero-extend hardware id number when forming firmware file name,
to avoid kernel requesting firmware like "elants_i2c_ 0.bin", which
is quite unexpected.
Acked-by: Charlie Mooney<charliemooney@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Linus Torvalds [Mon, 20 Apr 2015 17:19:03 +0000 (10:19 -0700)]
Merge tag 'cpumask-next-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull final removal of deprecated cpus_* cpumask functions from Rusty Russell:
"This is the final removal (after several years!) of the obsolete
cpus_* functions, prompted by their mis-use in staging.
With these function removed, all cpu functions should only iterate to
nr_cpu_ids, so we finally only allocate that many bits when cpumasks
are allocated offstack"
* tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits)
cpumask: remove __first_cpu / __next_cpu
cpumask: resurrect CPU_MASK_CPU0
linux/cpumask.h: add typechecking to cpumask_test_cpu
cpumask: only allocate nr_cpumask_bits.
Fix weird uses of num_online_cpus().
cpumask: remove deprecated functions.
mips: fix obsolete cpumask_of_cpu usage.
x86: fix more deprecated cpu function usage.
ia64: remove deprecated cpus_ usage.
powerpc: fix deprecated CPU_MASK_CPU0 usage.
CPU_MASK_ALL/CPU_MASK_NONE: remove from deprecated region.
staging/lustre/o2iblnd: Don't use cpus_weight
staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_
staging/lustre/ptlrpc: Do not use deprecated cpus_* functions
blackfin: fix up obsolete cpu function usage.
parisc: fix up obsolete cpu function usage.
tile: fix up obsolete cpu function usage.
arm64: fix up obsolete cpu function usage.
mips: fix up obsolete cpu function usage.
x86: fix up obsolete cpu function usage.
...
Linus Torvalds [Mon, 20 Apr 2015 17:15:33 +0000 (10:15 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull more s390 updates from Martin Schwidefsky:
"The big thing in this second merge for s390 is the new eBPF JIT from
Michael which replaces the old 32-bit backend.
The remaining commits are bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: add locking for fmb access
s390/pci: extract software counters from fmb
s390/dasd: Fix unresumed device after suspend/resume having no paths
s390/dasd: fix unresumed device after suspend/resume
s390/dasd: fix inability to set a DASD device offline
s390/mm: Fix memory hotplug for unaligned standby memory
s390/bpf: Add s390x eBPF JIT compiler backend
s390: Use bool function return values of true/false not 1/0
Linus Torvalds [Mon, 20 Apr 2015 17:12:29 +0000 (10:12 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/gerg/m68knommu
Pull m68k fixes from Greg Ungerer:
"Nothing big, spelling fixes and fix/cleanup for ColdFire eth device setup"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix fec setup warning for ColdFire 5271 builds
m68knommu: ColdFire 5271 only has a single FEC controller
m68k: Fix trivial typos in comments
Linus Torvalds [Mon, 20 Apr 2015 16:08:49 +0000 (09:08 -0700)]
smp: don't use 16-bit words for atomic accesses
Yes, it should work, but it's a bad idea. Not only did ARM64 not have
the 16-bit access code (there's a separate patch to add it), it's just
not a good atomic type. Some architectures fundamentally don't do
atomic accesses in them (alpha), and it's not like it saves any space
here anyway because of structure packing issues.
We normally should aim for flags to be "unsigned int" or "unsigned
long". And if space is at a premium, use a single byte (although that
causes problems on alpha again). There might be very special cases
where a 16-byte entity is really wanted, but this is not one of them.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yan, Zheng [Thu, 26 Mar 2015 11:06:00 +0000 (19:06 +0800)]
ceph: hold on to exclusive caps on complete directories
If a directory is complete, we want to keep the exclusive
cap. So that MDS does not end up revoking the shared cap
on every create/unlink operation.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Ilya Dryomov [Wed, 25 Mar 2015 18:15:17 +0000 (21:15 +0300)]
libceph: simplify our debugfs attr macro
No need to do single_open()'s job ourselves.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Ilya Dryomov [Wed, 25 Mar 2015 18:10:09 +0000 (21:10 +0300)]
ceph: show non-default options only
Don't pollute /proc/mounts with default options (presently these are
dcache, nofsc and acl). Leave the acl/noacl however - it's a bit of
a special case due to CONFIG_CEPH_FS_POSIX_ACL.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Ilya Dryomov [Wed, 25 Mar 2015 18:07:41 +0000 (21:07 +0300)]
libceph: expose client options through debugfs
Add a client_options attribute for showing libceph options.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Ilya Dryomov [Wed, 25 Mar 2015 18:02:16 +0000 (21:02 +0300)]
libceph, ceph: split ceph_show_options()
Split ceph_show_options() into two pieces and move the piece
responsible for printing client (libceph) options into net/ceph. This
way people adding a libceph option wouldn't have to remember to update
code in fs/ceph.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Ilya Dryomov [Tue, 24 Mar 2015 13:15:17 +0000 (16:15 +0300)]
rbd: mark block queue as non-rotational
Set QUEUE_FLAG_NONROT. Following commit
b277da0a8a59 ("block: disable
entropy contributions for nonrot devices") we should also clear
QUEUE_FLAG_ADD_RANDOM, but it's off by default for blk-mq drivers, so
just note it in the comment.
Also remove physical block size assignment - no sense in repeating
defaults that are not going to change.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Ilya Dryomov [Mon, 23 Mar 2015 11:52:40 +0000 (14:52 +0300)]
libceph: don't overwrite specific con error msgs
- specific con->error_msg messages (e.g. "protocol version mismatch")
end up getting overwritten by a catch-all "socket error on read
/ write", introduced in commit
3a140a0d5c4b ("libceph: report socket
read/write error message")
- "bad message sequence # for incoming message" loses to "bad crc" due
to the fact that -EBADMSG is used for both
Fix it, and tidy up con->error_msg assignments and pr_errs while at it.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Yan, Zheng [Tue, 24 Mar 2015 12:15:36 +0000 (20:15 +0800)]
ceph: cleanup unsafe requests when reconnecting is denied
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Yan, Zheng [Tue, 24 Mar 2015 07:49:36 +0000 (15:49 +0800)]
ceph: don't zero i_wrbuffer_ref when reconnecting is denied
remove_session_caps_cb() does not truncate dirty data in page
cache, but zeros i_wrbuffer_ref/i_wrbuffer_ref_head. This will
result negtive i_wrbuffer_ref/i_wrbuffer_ref_head
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Yan, Zheng [Tue, 24 Mar 2015 03:36:08 +0000 (11:36 +0800)]
ceph: don't mark dirty caps when there is no auth cap
No i_auth_cap means reconnecting to MDS was denied. So don't
add new dirty caps.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Yan, Zheng [Mon, 23 Mar 2015 12:12:20 +0000 (20:12 +0800)]
ceph: keep i_snap_realm while there are writers
when reconnecting to MDS is denied, we remove session caps
forcibly. But it's possible there are ongoing write, the
write code needs to reference i_snap_realm. So if there are
ongoing write, we keep i_snap_realm.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Joe Perches [Mon, 23 Mar 2015 20:35:03 +0000 (13:35 -0700)]
libceph: osdmap.h: Add missing format newlines
To avoid possible interleaving, add missing '\n' to formats.
Convert pr_warning to pr_warn while there.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Sanidhya Kashyap [Sat, 21 Mar 2015 16:54:58 +0000 (12:54 -0400)]
ceph: kstrdup() memory handling
Currently, there is no check for the kstrdup() for r_path2,
r_path1 and snapdir_name as various locations as there is a
possibility of failure during memory pressure. Therefore,
returning ENOMEM where the checks have been missed.
Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Taesoo Kim [Fri, 20 Mar 2015 21:36:56 +0000 (17:36 -0400)]
ceph: properly release page upon error
When ceph_update_writeable_page fails (including -EAGAIN), it
unlocks (w/ unlock_page) the page but does not 'release'
(w/ page_cache_release) properly.
Upon error, properly set *pagep to NULL, indicating an error.
Signed-off-by: Taesoo Kim <tsgatesv@gmail.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Ilya Dryomov [Thu, 5 Mar 2015 07:47:22 +0000 (10:47 +0300)]
rbd: be more informative on -ENOENT failures
pr_info what exactly was the culprit: missing pool, image or snap.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Olof Johansson [Mon, 20 Apr 2015 14:59:04 +0000 (07:59 -0700)]
Merge branch 'fixes' into next/fixes-non-critical
Merge a set of fixes that we missed sending in before v4.0 release. These
will also be sent to -stable.
* fixes: (659 commits)
ARM: at91/dt: sama5d3 xplained: add phy address for macb1
kbuild: Create directory for target DTB
ARM: mvebu: Disable CPU Idle on Armada 38x
arm64: juno: Fix misleading name of UART reference clock
ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
ARM: socfpga: dts: fix spi1 interrupt
ARM: dts: Fix gpio interrupts for dm816x
ARM: dts: dra7: remove ti,hwmod property from pcie phy
ARM: EXYNOS: Fix build breakage cpuidle on !SMP
ARM: OMAP: dmtimer: disable pm runtime on remove
ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
ARM: dts: fix lid and power pin-functions for exynos5250-spring
ARM: dts: fix mmc node updates for exynos5250-spring
ARM: OMAP2+: Fix socbus family info for AM33xx devices
ARM: dts: omap3: Add missing dmas for crypto
+ Linux 4.0-rc4
Signed-off-by: Olof Johansson <olof@lixom.net>
Nicholas Mc Guire [Tue, 10 Mar 2015 15:18:15 +0000 (11:18 -0400)]
ceph: match wait_for_completion_timeout return type
return type of wait_for_completion_timeout is unsigned long not int. An
appropriately named unsigned long is added and the assignment fixed up.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Nicholas Mc Guire [Fri, 6 Feb 2015 11:52:17 +0000 (06:52 -0500)]
ceph: use msecs_to_jiffies for time conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Fabian Frederick [Tue, 3 Mar 2015 17:57:49 +0000 (18:57 +0100)]
ceph: remove redundant declaration
ceph_aops was already defined extern in addr.c section
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Yan, Zheng [Wed, 4 Mar 2015 08:05:04 +0000 (16:05 +0800)]
ceph: fix dcache/nocache mount option
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Yan, Zheng [Fri, 27 Feb 2015 00:54:08 +0000 (08:54 +0800)]
ceph: drop cap releases in requests composed before cap reconnect
These cap releases are stale because MDS will re-establish client
caps according to the cap reconnect messages.
Note: MDS can detect stale cap messages, so these stale cap
releases are harmless even we don't drop them.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Vineet Gupta [Mon, 20 Apr 2015 11:19:30 +0000 (16:49 +0530)]
ARC: perf: don't add code for impossible case
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta [Wed, 15 Apr 2015 11:05:38 +0000 (16:35 +0530)]
ARC: perf: Rename DT binding to not confuse with power mgmt
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta [Fri, 12 Jul 2013 13:55:54 +0000 (15:55 +0200)]
ARC: perf: add user space attribution in callchains
The actual user space unwinding is more involved, so simply capture the
user space PC
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta [Tue, 12 Nov 2013 10:00:03 +0000 (11:00 +0100)]
ARC: perf: Add kernel callchain support
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta [Wed, 7 Jan 2015 07:44:07 +0000 (13:14 +0530)]
ARC: perf: support cache hit/miss ratio
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta [Wed, 15 Apr 2015 14:14:07 +0000 (19:44 +0530)]
ARC: perf: Add some comments/debug stuff
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Vineet Gupta [Mon, 17 Nov 2014 11:43:03 +0000 (17:13 +0530)]
ARC: perf: make @arc_pmu static global
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Tomi Valkeinen [Mon, 20 Apr 2015 09:09:31 +0000 (12:09 +0300)]
Merge omapdss topic branch for fbdev 4.1
Grygorii Strashko [Wed, 25 Feb 2015 17:03:56 +0000 (19:03 +0200)]
omapdss: extend pm notifier to handle hibernation
Add handling of missed events in omap_dss_pm_notif which are
needed to support hibernation (suspend to disk).
Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Javier Martinez Canillas [Sat, 7 Mar 2015 16:08:03 +0000 (17:08 +0100)]
OMAPDSS: Correct video ports description file path in DT binding doc
The doc refers to Documentation/devicetree/bindings/video/video-ports.txt
which does not exist. The documentation seems to be outdated and wants to
refer to Documentation/devicetree/bindings/graph.txt instead.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tomi Valkeinen [Wed, 25 Feb 2015 10:08:14 +0000 (12:08 +0200)]
OMAPDSS: disable VT switch
We don't need VT switch when suspending/resuming, so disable it. This
speeds up suspend/resume.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: NeilBrown <neil@brown.name>