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| author | Mike Snitzer <msnitzer@redhat.com> | 2014-03-08 20:19:20 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-03-08 20:31:31 -0700 |
| commit | 10beafc190abcc4ad64024a053441520ba116127 (patch) | |
| tree | ab36c3d76a426d4a195e9344b8b323daba04f689 /block/blk-flush.c | |
| parent | 7982e90c3a574c90b51aa1c77404e7e6189d58d5 (diff) | |
| download | linux-stable-10beafc190abcc4ad64024a053441520ba116127.tar.gz linux-stable-10beafc190abcc4ad64024a053441520ba116127.tar.bz2 linux-stable-10beafc190abcc4ad64024a053441520ba116127.zip | |
block: change flush sequence list addition back to front add
Commit 18741986 inadvertently changed the rq flush insertion
from a head to a tail insertion. Fix that back up.
Signed-off-by: Mike Snitzer <msnitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-flush.c')
| -rw-r--r-- | block/blk-flush.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index f598f794c3c6..43e6b4755e9a 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -140,14 +140,17 @@ static void mq_flush_run(struct work_struct *work) blk_mq_insert_request(rq, false, true, false); } -static bool blk_flush_queue_rq(struct request *rq) +static bool blk_flush_queue_rq(struct request *rq, bool add_front) { if (rq->q->mq_ops) { INIT_WORK(&rq->mq_flush_work, mq_flush_run); kblockd_schedule_work(rq->q, &rq->mq_flush_work); return false; } else { - list_add_tail(&rq->queuelist, &rq->q->queue_head); + if (add_front) + list_add(&rq->queuelist, &rq->q->queue_head); + else + list_add_tail(&rq->queuelist, &rq->q->queue_head); return true; } } @@ -193,7 +196,7 @@ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq, case REQ_FSEQ_DATA: list_move_tail(&rq->flush.list, &q->flush_data_in_flight); - queued = blk_flush_queue_rq(rq); + queued = blk_flush_queue_rq(rq, true); break; case REQ_FSEQ_DONE: @@ -326,7 +329,7 @@ static bool blk_kick_flush(struct request_queue *q) q->flush_rq->rq_disk = first_rq->rq_disk; q->flush_rq->end_io = flush_end_io; - return blk_flush_queue_rq(q->flush_rq); + return blk_flush_queue_rq(q->flush_rq, false); } static void flush_data_end_io(struct request *rq, int error) |