From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx> raid1 arrays do not have the notion of chunk size. Set the existing chunk size of the new raid0 to the same as the proposed new chunk size to avoid a divide by zero OOPS when aligning the size of the new array to that of the chunk size. Signed-off-by: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx> --- drivers/md/raid0.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 6f31f55..dff8d6b 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -639,6 +639,14 @@ static void *raid0_takeover_raid1(struct mddev *mddev) mddev->new_level = 0; mddev->new_layout = 0; mddev->new_chunk_sectors = 128; /* by default set chunk size to 64k */ + mddev->chunk_sectors = 128; /* + * a raid1 one doesn't have the + * notion of chunk size, so set + * existing chunk_sector to match the + * new size to avoid divide by zero + * when aligning the size of the new + * raid0 to the existing chunk size. + */ mddev->delta_disks = 1 - mddev->raid_disks; mddev->raid_disks = 1; /* make sure it will be not marked as dirty */ -- 1.7.7.6 -- 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
