diff options
| author | Minchan Kim <minchan@kernel.org> | 2017-03-30 14:20:45 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-03-30 08:13:23 -0600 |
| commit | ac77a0c463c1d7d659861f7b6d1261970dd3282a (patch) | |
| tree | c9009d64ed977ea79e70d6cc0014e08af47c6283 /block | |
| parent | 89970a04d70c6c9e5e4492fd4096c0b5630a478c (diff) | |
| download | linux-0-day-ac77a0c463c1d7d659861f7b6d1261970dd3282a.tar.gz linux-0-day-ac77a0c463c1d7d659861f7b6d1261970dd3282a.tar.xz | |
block: do not put mq context in blk_mq_alloc_request_hctx
In blk_mq_alloc_request_hctx, blk_mq_sched_get_request doesn't
get sw context so we don't need to put the context with
blk_mq_put_ctx. Unless, we will see preempt counter underflow.
Cc: Omar Sandoval <osandov@fb.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 6b6e7bc041dbf..935f2cc7c8c3a 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -321,7 +321,6 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q, int rw, rq = blk_mq_sched_get_request(q, NULL, rw, &alloc_data); - blk_mq_put_ctx(alloc_data.ctx); blk_queue_exit(q); if (!rq) |