On Wed, 10 Jul 2013 14:54:30 +0300, Ilya Dryomov wrote:
> Currently num_tolerated_disk_barrier_failures gets the value of
> fs_devices->num_devices in the RAID6 case. But, RAID6 can tolerate only
> two simultaneous failures, so set it to 2.
>
> CC: Stefan Behrens <sbehrens@xxxxxxxxxxxxxxxx>
> Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
> ---
> fs/btrfs/disk-io.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index b8b60b6..aecf788 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -3258,7 +3258,7 @@ int btrfs_calc_num_tolerated_disk_barrier_failures(
> BTRFS_BLOCK_GROUP_RAID10)) {
> num_tolerated_disk_barrier_failures = 1;
> } else if (flags &
> - BTRFS_BLOCK_GROUP_RAID5) {
> + BTRFS_BLOCK_GROUP_RAID6) {
> num_tolerated_disk_barrier_failures = 2;
> }
> }
>
ELATE :), Henrik Nordvik already fixed it with commit 15b0a89d7.
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