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| author | Jens Axboe <axboe@fb.com> | 2017-02-17 11:37:14 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-02-17 12:35:47 -0700 |
| commit | c7a571b45055dba740156013fef4a7fdbe3262d9 (patch) | |
| tree | e9dac63bccc709731773c4701a74d1b4619abf49 /block | |
| parent | 2aa0f21d5491976729087104553b7bdaef047b9d (diff) | |
| download | lwn-c7a571b45055dba740156013fef4a7fdbe3262d9.tar.gz lwn-c7a571b45055dba740156013fef4a7fdbe3262d9.zip | |
blk-mq-sched: don't add flushes to the head of requeue queue
If we are currently out of driver tags, we don't want to add a
new flush (without a tag) to the head of the requeue list. We
want to add it to the back, behind the others that are
potentially also waiting for a tag.
Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq-sched.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c index 97fe904f0a04..4ee7cb043812 100644 --- a/block/blk-mq-sched.c +++ b/block/blk-mq-sched.c @@ -351,7 +351,7 @@ static void blk_mq_sched_insert_flush(struct blk_mq_hw_ctx *hctx, blk_insert_flush(rq); blk_mq_run_hw_queue(hctx, true); } else - blk_mq_add_to_requeue_list(rq, true, true); + blk_mq_add_to_requeue_list(rq, false, true); } void blk_mq_sched_insert_request(struct request *rq, bool at_head, |