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(parent: 8dd2cb7) | patch
block: add plug for blkdev_issue_discard
authorShaohua Li <shli@kernel.org>
Fri, 14 Dec 2012 03:15:51 +0000 (11:15 +0800)
committerJens Axboe <axboe@kernel.dk>
Fri, 14 Dec 2012 19:46:04 +0000 (20:46 +0100)
commit0cfbcafcae8b7364b5fa96c2b26ccde7a3a296a9
treedc6601c000fc21c80db3f6861ac117359649429atree | snapshot
parent8dd2cb7e880d2f77fba53b523c99133ad5054cfdcommit | diff
block: add plug for blkdev_issue_discard

Last post of this patch appears lost, so I resend this.

Now discard merge works, add plug for blkdev_issue_discard. This will help
discard request merge especially for raid0 case. In raid0, a big discard
request is split to small requests, and if correct plug is added, such small
requests can be merged in low layer.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-lib.c diff | blob | history
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