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osdblk: stop using q->prepare_flush_fn

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use REQ_FLUSH flag instead.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
FUJITA Tomonori 2010-07-03 17:45:35 +09:00 committed by Jens Axboe
parent 90467c294a
commit 7f9815f09d
1 changed files with 2 additions and 10 deletions
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12
drivers/block/osdblk.c
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@ -323,7 +323,7 @@ static void osdblk_rq_fn(struct request_queue *q)
* driver-specific, etc.
*/
do_flush = (rq->special == (void *) 0xdeadbeefUL);
do_flush = rq->cmd_flags & REQ_FLUSH;
do_write = (rq_data_dir(rq) == WRITE);
if (!do_flush) { /* osd_flush does not use a bio */
@ -380,14 +380,6 @@ static void osdblk_rq_fn(struct request_queue *q)
}
}
static void osdblk_prepare_flush(struct request_queue *q, struct request *rq)
{
/* add driver-specific marker, to indicate that this request
* is a flush command
*/
rq->special = (void *) 0xdeadbeefUL;
}
static void osdblk_free_disk(struct osdblk_device *osdev)
{
struct gendisk *disk = osdev->disk;
@ -447,7 +439,7 @@ static int osdblk_init_disk(struct osdblk_device *osdev)
blk_queue_stack_limits(q, osd_request_queue(osdev->osd));
blk_queue_prep_rq(q, blk_queue_start_tag);
blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, osdblk_prepare_flush);
blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
disk->queue = q;