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block: add blk_run_queue_async

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Instead of overloading __blk_run_queue to force an offload to kblockd
add a new blk_run_queue_async helper to do it explicitly.  I've kept
the blk_queue_stopped check for now, but I suspect it's not needed
as the check we do when the workqueue items runs should be enough.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Christoph Hellwig
2011-04-18 11:41:33 +02:00
committed by Jens Axboe
parent 4521cc4ed5
commit 24ecfbe27f
9 changed files with 36 additions and 23 deletions
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2
drivers/scsi/scsi_lib.c
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@@ -443,7 +443,7 @@ static void scsi_run_queue(struct request_queue *q)
&sdev->request_queue->queue_flags);
if (flagset)
queue_flag_set(QUEUE_FLAG_REENTER, sdev->request_queue);
__blk_run_queue(sdev->request_queue, false);
__blk_run_queue(sdev->request_queue);
if (flagset)
queue_flag_clear(QUEUE_FLAG_REENTER, sdev->request_queue);
spin_unlock(sdev->request_queue->queue_lock);