#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
+#include <linux/blkdev.h>
#include <asm/atomic.h>
struct request_queue;
unsigned no_uld_attach:1; /* disable connecting to upper level drivers */
unsigned select_no_atn:1;
unsigned fix_capacity:1; /* READ_CAPACITY is too high by 1 */
+ unsigned guess_capacity:1; /* READ_CAPACITY might be too high by 1 */
unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */
unsigned int device_blocked; /* Device returned QUEUE_FULL. */
#define sdev_printk(prefix, sdev, fmt, a...) \
dev_printk(prefix, &(sdev)->sdev_gendev, fmt, ##a)
-#define scmd_printk(prefix, scmd, fmt, a...) \
- dev_printk(prefix, &(scmd)->device->sdev_gendev, fmt, ##a)
+#define scmd_printk(prefix, scmd, fmt, a...) \
+ (scmd)->request->rq_disk ? \
+ sdev_printk(prefix, (scmd)->device, "[%s] " fmt, \
+ (scmd)->request->rq_disk->disk_name, ##a) : \
+ sdev_printk(prefix, (scmd)->device, fmt, ##a)
enum scsi_target_state {
STARGET_RUNNING = 1,
struct scsi_device *);
/**
- * shost_for_each_device - iterate over all devices of a host
- * @sdev: iterator
- * @host: host whiches devices we want to iterate over
+ * shost_for_each_device - iterate over all devices of a host
+ * @sdev: the &struct scsi_device to use as a cursor
+ * @shost: the &struct scsi_host to iterate over
*
- * This traverses over each devices of @shost. The devices have
- * a reference that must be released by scsi_host_put when breaking
- * out of the loop.
+ * Iterator that returns each device attached to @shost. This loop
+ * takes a reference on each device and releases it at the end. If
+ * you break out of the loop, you must call scsi_device_put(sdev).
*/
#define shost_for_each_device(sdev, shost) \
for ((sdev) = __scsi_iterate_devices((shost), NULL); \
(sdev) = __scsi_iterate_devices((shost), (sdev)))
/**
- * __shost_for_each_device - iterate over all devices of a host (UNLOCKED)
- * @sdev: iterator
- * @host: host whiches devices we want to iterate over
+ * __shost_for_each_device - iterate over all devices of a host (UNLOCKED)
+ * @sdev: the &struct scsi_device to use as a cursor
+ * @shost: the &struct scsi_host to iterate over
*
- * This traverses over each devices of @shost. It does _not_ take a
- * reference on the scsi_device, thus it the whole loop must be protected
- * by shost->host_lock.
+ * Iterator that returns each device attached to @shost. It does _not_
+ * take a reference on the scsi_device, so the whole loop must be
+ * protected by shost->host_lock.
*
- * Note: The only reason why drivers would want to use this is because
- * they're need to access the device list in irq context. Otherwise you
- * really want to use shost_for_each_device instead.
+ * Note: The only reason to use this is because you need to access the
+ * device list in interrupt context. Otherwise you really want to use
+ * shost_for_each_device instead.
*/
#define __shost_for_each_device(sdev, shost) \
list_for_each_entry((sdev), &((shost)->__devices), siblings)
void (*done)(void *, char *, int, int),
gfp_t gfp);
-static inline void scsi_device_reprobe(struct scsi_device *sdev)
+static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
{
- device_reprobe(&sdev->sdev_gendev);
+ return device_reprobe(&sdev->sdev_gendev);
}
static inline unsigned int sdev_channel(struct scsi_device *sdev)