In case of reshape of raid0 through raid4 a value of discard_granularity will be set to stripe size. MD driver should re-set this value to correct one when migration will be finished. Otherwise array will be left with wrong value and discard operations will not work properly. Signed-off-by: Pawel Baldysiak <pawel.baldysiak@xxxxxxxxx> Cc: Shaohua Li <shli@xxxxxxxxxx> --- drivers/md/raid0.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index c4d420b..807ca3a 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -266,6 +266,8 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf) } mddev->queue->backing_dev_info.congested_fn = raid0_congested; mddev->queue->backing_dev_info.congested_data = mddev; + mddev->queue->limits.discard_granularity = + queue_logical_block_size(mddev->queue); /* * now since we have the hard sector sizes, we can make sure -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
