Messages in this thread Patch in this message | | | Subject | [PATCH] raid0: Set discard_granularity to correct value after reshape. | From | Pawel Baldysiak <> | Date | Wed, 30 Oct 2013 13:20:22 +0100 |
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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@intel.com> Cc: Shaohua Li <shli@kernel.org> --- 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
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