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[PATCH] block: request_queue->ordcolor must not be flipped on SOFTBARRIER

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q->ordcolor must not be flipped on SOFTBARRIER.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Tejun Heo 2006-02-04 23:27:38 -08:00 committed by Linus Torvalds
parent 9a7a67af8b
commit 238e7db935
1 changed files with 2 additions and 1 deletions
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3
block/elevator.c
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@ -323,7 +323,8 @@ void __elv_add_request(request_queue_t *q, struct request *rq, int where,
/*
* toggle ordered color
*/
q->ordcolor ^= 1;
if (blk_barrier_rq(rq))
q->ordcolor ^= 1;
/*
* barriers implicitly indicate back insertion