diff options
| -rw-r--r-- | block/blk-mq.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 22397ba815ca..84400157c5f4 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -4397,6 +4397,16 @@ static int blk_mq_realloc_tag_set_tags(struct blk_mq_tag_set *set, sizeof(*set->tags)); kfree(set->tags); set->tags = new_tags; + + for (i = set->nr_hw_queues; i < new_nr_hw_queues; i++) { + if (!__blk_mq_alloc_map_and_rqs(set, i)) { + while (--i >= set->nr_hw_queues) + __blk_mq_free_map_and_rqs(set, i); + return -ENOMEM; + } + cond_resched(); + } + done: set->nr_hw_queues = new_nr_hw_queues; return 0; |