Messages in this thread Patch in this message | | | Subject | [PATCH RFC 2/3] md/raid0: enable REQ_NOWAIT | From | Konstantin Khlebnikov <> | Date | Mon, 01 Jun 2020 15:37:12 +0300 |
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Set limits.nowait_requests = 1 before stacking limits. Raid itself does not delay bio in raid0_make_request().
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> --- 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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