Tejun Heo 47f70d5a6c block: kick queue after sequencing REQ_FLUSH/FUA ... While completing a request from a REQ_FLUSH/FUA sequence, another request can be pushed to the request queue. If a driver tests elv_queue_empty() before completing a request and runs the queue again only if the queue wasn't empty, this may lead to hang. Please note that most drivers either kick the queue unconditionally or test queue emptiness after completing the current request and don't have this problem. This patch removes this possibility by making REQ_FLUSH/FUA sequence code kick the queue if the queue was empty before completing a request from REQ_FLUSH/FUA sequence. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2010-09-10 12:35:37 +02:00
..
blk-cgroup.c	Merge branch 'master' into for-2.6.35	2010-05-21 21:27:26 +02:00
blk-cgroup.h	blk-cgroup: config options re-arrangement	2010-04-26 19:27:56 +02:00
blk-core.c	block: filter flush bio's in __generic_make_request()	2010-09-10 12:35:37 +02:00
blk-exec.c	block: remove wrappers for request type/flags	2010-08-07 18:17:56 +02:00
blk-flush.c	block: kick queue after sequencing REQ_FLUSH/FUA	2010-09-10 12:35:37 +02:00
blk-integrity.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
blk-ioc.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
blk-iopoll.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
blk-lib.c	block: add secure discard	2010-08-12 08:43:30 -07:00
blk-map.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
blk-merge.c	gcc-4.6: block: fix unused but set variables in blk-merge	2010-08-07 18:23:10 +02:00
blk-settings.c	block: deprecate barrier and replace blk_queue_ordered() with blk_queue_flush()	2010-09-10 12:35:36 +02:00
blk-softirq.c	generic-ipi: remove CSD_FLAG_WAIT	2009-02-25 14:13:44 +01:00
blk-sysfs.c	block: add helpers for the trivial queue flag sysfs show/store entries	2010-08-07 18:13:50 +02:00
blk-tag.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
blk-timeout.c	block: ensure jiffies wrap is handled correctly in blk_rq_timed_out_timer	2010-04-21 17:42:08 +02:00
blk.h	block: implement REQ_FLUSH/FUA based interface for FLUSH/FUA requests	2010-09-10 12:35:37 +02:00
bsg.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
cfq-iosched.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
cfq.h	cfq: fix recursive call in cfq_blkiocg_update_completion_stats()	2010-06-21 09:10:55 +02:00
compat_ioctl.c	block: add secure discard	2010-08-12 08:43:30 -07:00
deadline-iosched.c	block: convert to pos and nr_sectors accessors	2009-05-11 09:50:54 +02:00
elevator.c	block: drop barrier ordering by queue draining	2010-09-10 12:35:36 +02:00
genhd.c	block: remove all rcu head initializations	2010-05-21 20:01:02 +02:00
ioctl.c	block: add secure discard	2010-08-12 08:43:30 -07:00
Kconfig	blk-cgroup: config options re-arrangement	2010-04-26 19:27:56 +02:00
Kconfig.iosched	blk-cgroup: config options re-arrangement	2010-04-26 19:27:56 +02:00
Makefile	block: rename blk-barrier.c to blk-flush.c	2010-09-10 12:35:36 +02:00
noop-iosched.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
scsi_ioctl.c	block/scsi_ioctl.c: quiet sparse noise	2009-11-04 09:10:33 +01:00