Message ID | 20190424102331.31624-3-kai.heng.feng@canonical.com |
---|---|
State | New |
Headers | show |
Series | [C,1/2] block: avoid setting nr_requests to current value | expand |
diff --git a/block/blk-mq.c b/block/blk-mq.c index 90e8058ae557..6645dcecc9ff 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2816,6 +2816,9 @@ int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr) if (!set) return -EINVAL; + if (q->nr_requests == nr) + return 0; + blk_mq_freeze_queue(q); blk_mq_quiesce_queue(q);