diff --git a/block/blk-mq.c b/block/blk-mq.c index 88cb5acc4f39..2c850330a32b 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -5218,6 +5218,7 @@ static int blk_hctx_poll(struct request_queue *q, struct blk_mq_hw_ctx *hctx, struct io_comp_batch *iob, unsigned int flags) { int ret; + unsigned long timeout = jiffies + 2; do { ret = q->mq_ops->poll(hctx, iob); @@ -5228,7 +5229,7 @@ static int blk_hctx_poll(struct request_queue *q, struct blk_mq_hw_ctx *hctx, if (ret < 0 || (flags & BLK_POLL_ONESHOT)) break; cpu_relax(); - } while (!need_resched()); + } while (!need_resched() && time_before(jiffies, timeout)); return 0; }