Tejun Heo bd87b5898a block: drop @tsk from attempt_plug_merge() and explain sync rules ... attempt_plug_merge() accesses elevator without holding queue_lock and may call into ->elevator_bio_merge_fn(). The elvator is guaranteed to be valid because it's accessed iff the plugged list has requests and elevator is never exited with live requests, so as long as the elevator method can deal with unlocked access, this is safe. Explain the sync rules around attempt_plug_merge() and drop the unnecessary @tsk parameter. This patch doesn't introduce any functional change. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2011-10-19 14:33:08 +02:00
..
blk-cgroup.c	block: fix genhd refcounting in blkio_policy_parse_and_set()	2011-10-19 14:31:15 +02:00
blk-cgroup.h
blk-core.c	block: drop @tsk from attempt_plug_merge() and explain sync rules	2011-10-19 14:33:08 +02:00
blk-exec.c	[SCSI] fix crash in scsi_dispatch_cmd()	2011-07-21 14:21:18 -07:00
blk-flush.c	block: fix flush machinery for stacking drivers with differring flush flags	2011-08-15 21:37:25 +02:00
blk-integrity.c
blk-ioc.c	Merge branch 'for-linus' into for-3.1/core	2011-07-01 16:17:13 +02:00
blk-iopoll.c
blk-lib.c	block: fix patch import error in max_discard_sectors check	2011-07-23 20:34:59 +02:00
blk-map.c
blk-merge.c
blk-settings.c
blk-softirq.c	block: Don't check QUEUE_FLAG_SAME_COMP in __blk_complete_request	2011-09-14 09:31:01 +02:00
blk-sysfs.c	Merge branch 'v3.1-rc10' into for-3.2/core	2011-10-19 14:30:42 +02:00
blk-tag.c
blk-throttle.c	block: reorganize throtl_get_tg() and blk_throtl_bio()	2011-10-19 14:33:01 +02:00
blk-timeout.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
blk.h	block: reorganize throtl_get_tg() and blk_throtl_bio()	2011-10-19 14:33:01 +02:00
bsg-lib.c	bsg-lib: add module.h include	2011-08-02 10:43:35 +02:00
bsg.c	bsg: fix address space warning from sparse	2011-06-20 13:27:45 +02:00
cfq-iosched.c	block: separate priority boosting from REQ_META	2011-08-23 14:50:29 +02:00
cfq.h
compat_ioctl.c	compat_ioctl: fix warning caused by qemu	2011-07-01 22:32:26 +02:00
deadline-iosched.c	iosched: prevent aliased requests from starving other I/O	2011-06-02 21:19:05 +02:00
elevator.c	block: reorganize queue draining	2011-10-19 14:32:38 +02:00
genhd.c	block: make gendisk hold a reference to its queue	2011-10-19 14:31:07 +02:00
ioctl.c
Kconfig	block: add bsg helper library	2011-07-31 22:05:09 +02:00
Kconfig.iosched
Makefile	block: add bsg helper library	2011-07-31 22:05:09 +02:00
noop-iosched.c
scsi_ioctl.c	block: drop unnecessary blk_get/put_queue() in scsi_cmd_ioctl() and blk_get_tg()	2011-10-19 14:31:25 +02:00