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| author | Chengming Zhou <zhouchengming@bytedance.com> | 2023-07-17 12:00:56 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-07-17 08:18:21 -0600 |
| commit | 28b241237470981a96fbd82077c8044466b61e5f (patch) | |
| tree | d7dea692d7a353845dca7bcca17f7c0e788f4e80 /block | |
| parent | 660e802c76c89e871c29cd3174c07c8d23e39c35 (diff) | |
| download | linux-stable-28b241237470981a96fbd82077c8044466b61e5f.tar.gz linux-stable-28b241237470981a96fbd82077c8044466b61e5f.tar.bz2 linux-stable-28b241237470981a96fbd82077c8044466b61e5f.zip | |
blk-flush: fix rq->flush.seq for post-flush requests
If the policy == (REQ_FSEQ_DATA | REQ_FSEQ_POSTFLUSH), it means that the
data sequence and post-flush sequence need to be done for this request.
The rq->flush.seq should record what sequences have been done (or don't
need to be done). So in this case, pre-flush doesn't need to be done,
we should init rq->flush.seq to REQ_FSEQ_PREFLUSH not REQ_FSEQ_POSTFLUSH.
Fixes: 615939a2ae73 ("blk-mq: defer to the normal submission path for post-flush requests")
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230717040058.3993930-3-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-flush.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index 8220517c2d67..fdc489e0ea16 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -443,7 +443,7 @@ bool blk_insert_flush(struct request *rq) * the post flush, and then just pass the command on. */ blk_rq_init_flush(rq); - rq->flush.seq |= REQ_FSEQ_POSTFLUSH; + rq->flush.seq |= REQ_FSEQ_PREFLUSH; spin_lock_irq(&fq->mq_flush_lock); list_move_tail(&rq->flush.list, &fq->flush_data_in_flight); spin_unlock_irq(&fq->mq_flush_lock); |