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authorTejun Heo <tj@kernel.org>2011-01-25 12:43:49 +0100
committerJens Axboe <jaxboe@fusionio.com>2011-01-25 12:43:49 +0100
commit414b4ff5eecff0097d09c4a7da12e435fd503692 (patch)
treecc7cd46c1455712af672b3ff872800b3da895837 /block/blk.h
parent3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff)
downloadop-kernel-dev-414b4ff5eecff0097d09c4a7da12e435fd503692.zip
op-kernel-dev-414b4ff5eecff0097d09c4a7da12e435fd503692.tar.gz
block: add REQ_FLUSH_SEQ
rq == &q->flush_rq was used to determine whether a rq is part of a flush sequence, which worked because all requests in a flush sequence were sequenced using the single dedicated request. This is about to change, so introduce REQ_FLUSH_SEQ flag to distinguish flush sequence requests. This patch doesn't cause any behavior change. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk.h b/block/blk.h
index 2db8f32..9d2ee8f 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -61,7 +61,7 @@ static inline struct request *__elv_next_request(struct request_queue *q)
while (!list_empty(&q->queue_head)) {
rq = list_entry_rq(q->queue_head.next);
if (!(rq->cmd_flags & (REQ_FLUSH | REQ_FUA)) ||
- rq == &q->flush_rq)
+ (rq->cmd_flags & REQ_FLUSH_SEQ))
return rq;
rq = blk_do_flush(q, rq);
if (rq)
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