diff options
| author | Minchan Kim <minchan@kernel.org> | 2017-03-30 14:20:45 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-03-30 08:13:05 -0600 |
| commit | 3e06eb3dacdff52749df85694cf6bc48283973c6 (patch) | |
| tree | bc38f716ed89e087343088cd7eae45ccfef41d81 /block | |
| parent | 3e8a7069b9ded55d408e3272213a95f07036dfa5 (diff) | |
| download | linux-0-day-3e06eb3dacdff52749df85694cf6bc48283973c6.tar.gz linux-0-day-3e06eb3dacdff52749df85694cf6bc48283973c6.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 e6ac774b0e41a..ef63367077ad8 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -324,7 +324,6 @@ 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) |