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block: set up rq->rq_disk properly for flush requests

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q->bar_rq.rq_disk is NULL. Use the rq_disk of the original request
instead.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
FUJITA Tomonori 2010-07-09 09:38:25 +09:00 committed by Jens Axboe
parent 28e18d0188
commit 16f2319fd6
1 changed files with 1 additions and 1 deletions
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2
block/blk-barrier.c
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@ -136,7 +136,7 @@ static void queue_flush(struct request_queue *q, unsigned which)
blk_rq_init(q, rq);
rq->cmd_type = REQ_TYPE_FS;
rq->cmd_flags = REQ_HARDBARRIER | REQ_FLUSH;
rq->rq_disk = q->bar_rq.rq_disk;
rq->rq_disk = q->orig_bar_rq->rq_disk;
rq->end_io = end_io;
elv_insert(q, rq, ELEVATOR_INSERT_FRONT);