On 2020-09-25 19:39, Xianting Tian wrote:
> diff --git a/block/blk-mq.c b/block/blk-mq.c
> index b3d2785ee..62d152d03 100644
> --- a/block/blk-mq.c
> +++ b/block/blk-mq.c
> @@ -3256,9 +3256,11 @@ static int __blk_mq_alloc_rq_maps(struct blk_mq_tag_set *set)
> {
> int i;
>
> - for (i = 0; i < set->nr_hw_queues; i++)
> + for (i = 0; i < set->nr_hw_queues; i++) {
> if (!__blk_mq_alloc_map_and_request(set, i))
> goto out_unwind;
> + cond_resched();
> + }
>
> return 0;
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
