[PATCH AUTOSEL 4.19 072/219] btrfs: fix ncopies raid_attr for RAID56

Sasha Levin
2019-11-22T05:50:38Z

From: Hans van Kranenburg <hans.van.kranenburg@mendix.com>

[ Upstream commit da612e31aee51bd13231c78a47c714b543bd3ad8 ]

RAID5 and RAID6 profile store one copy of the data, not 2 or 3. These
values are not yet used anywhere so there's no change.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Hans van Kranenburg <hans.van.kranenburg@mendix.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 f84c18e86c816..5bbcdcff68a9e 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,
--
2.20.1