Tejun Heo 1bc691d357 [PATCH] fix queue stalling while barrier sequencing ...

If ordered tag isn't supported, request ordering for barrier
sequencing is performed by queue draining, which basically hangs the
request queue until elv_completed_request() reports completion of all
previous fs requests.

The condition check in elv_completed_request() was only performed for
fs requests.  If a special request is queued between the last
to-be-drained request and the barrier sequence, draining is never
completed and the queue is stalled forever.

This patch moves the end-of-draining condition check such that it's
performed for all requests.

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2006-01-12 09:05:39 -08:00

..

as-iosched.c

[BLOCK] as-iosched: update alias handling

2006-01-06 09:39:03 +01:00

cfq-iosched.c

[BLOCK] mark some block/ variables cons

2006-01-06 09:46:02 +01:00

deadline-iosched.c

[BLOCK] mark some block/ variables cons

2006-01-06 09:46:02 +01:00

elevator.c

[PATCH] fix queue stalling while barrier sequencing

2006-01-12 09:05:39 -08:00

genhd.c

[PATCH] driver core: replace "hotplug" by "uevent"

2006-01-04 16:18:08 -08:00

ioctl.c

[PATCH] move capable() to capability.h

2006-01-11 18:42:13 -08:00

Kconfig

[PATCH] s390: cleanup Kconfig

2006-01-06 08:33:53 -08:00

Kconfig.iosched

…

ll_rw_blk.c

Merge branch 'blk-softirq' of git://brick.kernel.dk/data/git/linux-2.6-block

2006-01-09 09:26:40 -08:00

Makefile

…

noop-iosched.c

[BLOCK] noop-iosched: reimplementation of request dispatching

2005-11-12 10:56:52 +01:00

scsi_ioctl.c

[PATCH] move capable() to capability.h

2006-01-11 18:42:13 -08:00