Set limits.nowait_requests = 1 before stacking limits.
Raid itself does not delay bio in raid0_make_request().
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
---
drivers/md/raid0.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 322386ff5d22..e34292b05488 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -406,6 +406,9 @@ static int raid0_run(struct mddev *mddev)
blk_queue_io_opt(mddev->queue,
(mddev->chunk_sectors << 9) * mddev->raid_disks);
+ /* raid0_make_request() does not delay requests */
+ mddev->queue->limits.nowait_requests = 1;
+
rdev_for_each(rdev, mddev) {
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
--
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