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authorMing Lei <tom.leiming@gmail.com>2014-06-05 00:23:55 +0800
committerJens Axboe <axboe@fb.com>2014-06-04 10:40:16 -0600
commit14b83e172f0bc83b8dcf78ee8b1844beeffb418d (patch)
tree3695014cf1ecadfaba613ed6d5e6be39b6788d68 /block/blk-flush.c
parent0e62f51f8753b048f391ee2d7f2af1f7297b0be5 (diff)
downloadlinux-0-day-14b83e172f0bc83b8dcf78ee8b1844beeffb418d.tar.gz
block: mq flush: clear flush_rq's tag in flush_end_io()
blk_mq_tag_to_rq() needs to be able to tell if it should return the original request, or the flush request if we are doing a flush sequence. Clear the flush tag when IO completes for a flush, since that is what we are comparing against. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-flush.c')
-rw-r--r--block/blk-flush.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c
index ff87c66..8ffee4b 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -225,7 +225,7 @@ static void flush_end_io(struct request *flush_rq, int error)
if (q->mq_ops) {
spin_lock_irqsave(&q->mq_flush_lock, flags);
- q->flush_rq->cmd_flags = 0;
+ q->flush_rq->tag = -1;
}
running = &q->flush_queue[q->flush_running_idx];