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| author | Shaohua Li <shli@kernel.org> | 2014-05-30 08:06:42 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-05-30 08:06:42 -0600 |
| commit | 2230237500821aedfcf2bba2a79d9cbca389233c (patch) | |
| tree | b4b7bee385293f8cc318fb309909ca3e701b903b /block/blk-flush.c | |
| parent | da52f22fa924b4a21d8e11fbfd3eeebd7a90a366 (diff) | |
| download | blackbird-op-linux-2230237500821aedfcf2bba2a79d9cbca389233c.tar.gz blackbird-op-linux-2230237500821aedfcf2bba2a79d9cbca389233c.zip | |
blk-mq: blk_mq_tag_to_rq should handle flush request
flush request is special, which borrows the tag from the parent
request. Hence blk_mq_tag_to_rq needs special handling to return
the flush request from the tag.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-flush.c')
| -rw-r--r-- | block/blk-flush.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index ef608b35d9be..ff87c664b7df 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -223,8 +223,10 @@ static void flush_end_io(struct request *flush_rq, int error) struct request *rq, *n; unsigned long flags = 0; - if (q->mq_ops) + if (q->mq_ops) { spin_lock_irqsave(&q->mq_flush_lock, flags); + q->flush_rq->cmd_flags = 0; + } running = &q->flush_queue[q->flush_running_idx]; BUG_ON(q->flush_pending_idx == q->flush_running_idx); |
