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(parent: 315fcee) | patch
block: reorganize queue draining
authorTejun Heo <tj@kernel.org>
Wed, 19 Oct 2011 12:32:38 +0000 (14:32 +0200)
committerJens Axboe <axboe@kernel.dk>
Wed, 19 Oct 2011 12:32:38 +0000 (14:32 +0200)
commite3c78ca524d230bc145e902625e88c392a58ddf3
tree833eb544dd4180fd626f60da17788aae7830f4dctree | snapshot
parent315fceee81155ef2aeed9316ca72aeea9347db5ccommit | diff
block: reorganize queue draining

Reorganize queue draining related code in preparation of queue exit
changes.

* Factor out actual draining from elv_quiesce_start() to
  blk_drain_queue().

* Make elv_quiesce_start/end() responsible for their own locking.

* Replace open-coded ELVSWITCH clearing in elevator_switch() with
  elv_quiesce_end().

This patch doesn't cause any visible functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-core.c diff | blob | history
block/blk.h diff | blob | history
block/elevator.c diff | blob | history
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