On 5.10.2018 00:24, Hans van Kranenburg wrote:
> RAID5 and RAID6 profile store one copy of the data, not 2 or 3. These
> values are not used anywhere by the way.
>
> Signed-off-by: Hans van Kranenburg <hans.van.kranenburg@xxxxxxxxxx>
Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
> ---
> fs/btrfs/volumes.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index 7045814fc98d..d82b3d735ebe 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -96,7 +96,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = {
> .devs_min = 2,
> .tolerated_failures = 1,
> .devs_increment = 1,
> - .ncopies = 2,
> + .ncopies = 1,
> .raid_name = "raid5",
> .bg_flag = BTRFS_BLOCK_GROUP_RAID5,
> .mindev_error = BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
> @@ -108,7 +108,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = {
> .devs_min = 3,
> .tolerated_failures = 2,
> .devs_increment = 1,
> - .ncopies = 3,
> + .ncopies = 1,
> .raid_name = "raid6",
> .bg_flag = BTRFS_BLOCK_GROUP_RAID6,
> .mindev_error = BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
>
