The nvme multipathing code just dispatches bios to one of the blk-mq based paths and never blocks on its own, so set QUEUE_FLAG_NOWAIT to support REQ_NOWAIT bios. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- drivers/nvme/host/multipath.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 4e2c3a6787e9..1d17b2387884 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -442,6 +442,8 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head) if (!q) goto out; blk_queue_flag_set(QUEUE_FLAG_NONROT, q); + blk_queue_flag_set(QUEUE_FLAG_NOWAIT, q); + /* set to a default value for 512 until disk is validated */ blk_queue_logical_block_size(q, 512); blk_set_stacking_limits(&q->limits); -- 2.30.1
