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Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Browse Source 
Pull block fixes from Jens Axboe:
 "Been sitting on this for a while, but lets get this out the door.
  This fixes various important bugs for 3.3 final, along with a few more
  trivial ones.  Please pull!"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: fix ioc leak in put_io_context
  block, sx8: fix pointer math issue getting fw version
  Block: use a freezable workqueue for disk-event polling
  drivers/block/DAC960: fix -Wuninitialized warning
  drivers/block/DAC960: fix DAC960_V2_IOCTL_Opcode_T -Wenum-compare warning
  block: fix __blkdev_get and add_disk race condition
  block: Fix setting bio flags in drivers (sd_dif/floppy)
  block: Fix NULL pointer dereference in sd_revalidate_disk
  block: exit_io_context() should call elevator_exit_icq_fn()
  block: simplify ioc_release_fn()
  block: replace icq->changed with icq->flags
This commit is contained in:
Linus Torvalds
2012-03-14 17:16:45 -07:00
parent ff398c45b0 ff8c1474cc
commit f1cbd03f5e
11 changed files with 198 additions and 95 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/genhd.h
View File

@@ -596,6 +596,7 @@ extern char *disk_name (struct gendisk *hd, int partno, char *buf);
extern int disk_expand_part_tbl(struct gendisk *disk, int target);
extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
extern int invalidate_partitions(struct gendisk *disk, struct block_device *bdev);
extern struct hd_struct * __must_check add_partition(struct gendisk *disk,
int partno, sector_t start,
sector_t len, int flags,

10
include/linux/iocontext.h
View File

@@ -6,8 +6,11 @@
#include <linux/workqueue.h>
enum {
ICQ_IOPRIO_CHANGED,
ICQ_CGROUP_CHANGED,
ICQ_IOPRIO_CHANGED = 1 << 0,
ICQ_CGROUP_CHANGED = 1 << 1,
ICQ_EXITED = 1 << 2,
ICQ_CHANGED_MASK = ICQ_IOPRIO_CHANGED | ICQ_CGROUP_CHANGED,
};
/*
@@ -88,7 +91,7 @@ struct io_cq {
struct rcu_head __rcu_head;
};
unsigned long changed;
unsigned int flags;
};
/*
@@ -139,6 +142,7 @@ struct io_context *get_task_io_context(struct task_struct *task,
gfp_t gfp_flags, int node);
void ioc_ioprio_changed(struct io_context *ioc, int ioprio);
void ioc_cgroup_changed(struct io_context *ioc);
unsigned int icq_get_changed(struct io_cq *icq);
#else
struct io_context;
static inline void put_io_context(struct io_context *ioc) { }

4
include/linux/workqueue.h
View File

@@ -289,12 +289,16 @@ enum {
*
* system_freezable_wq is equivalent to system_wq except that it's
* freezable.
*
* system_nrt_freezable_wq is equivalent to system_nrt_wq except that
* it's freezable.
*/
extern struct workqueue_struct *system_wq;
extern struct workqueue_struct *system_long_wq;
extern struct workqueue_struct *system_nrt_wq;
extern struct workqueue_struct *system_unbound_wq;
extern struct workqueue_struct *system_freezable_wq;
extern struct workqueue_struct *system_nrt_freezable_wq;
extern struct workqueue_struct *
__alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,