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| author | Tejun Heo <tj@kernel.org> | 2011-01-25 12:43:49 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-01-25 12:43:49 +0100 |
| commit | 414b4ff5eecff0097d09c4a7da12e435fd503692 (patch) | |
| tree | cc7cd46c1455712af672b3ff872800b3da895837 /block/blk-flush.c | |
| parent | 3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff) | |
| download | blackbird-obmc-linux-414b4ff5eecff0097d09c4a7da12e435fd503692.tar.gz blackbird-obmc-linux-414b4ff5eecff0097d09c4a7da12e435fd503692.zip | |
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-flush.c')
| -rw-r--r-- | block/blk-flush.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index 54b123d6563e..8592869bcbe7 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -130,6 +130,7 @@ static struct request *queue_next_fseq(struct request_queue *q) BUG(); } + rq->cmd_flags |= REQ_FLUSH_SEQ; elv_insert(q, rq, ELEVATOR_INSERT_FRONT); return rq; } |
