From: David Sterba Date: Mon, 15 Feb 2016 15:28:03 +0000 (+0100) Subject: btrfs: introduce raid-type to error-code table, for minimum device constraint X-Git-Tag: next-20160301~106^2^2^2~4 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a51338c7b9ddb11329133406a65360d0daad3285;p=karo-tx-linux.git btrfs: introduce raid-type to error-code table, for minimum device constraint Reviewed-by: Anand Jain Signed-off-by: David Sterba --- diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index ae94e06f3e61..a67249582a6f 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -118,6 +118,21 @@ const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES] = { [BTRFS_RAID_RAID6] = BTRFS_BLOCK_GROUP_RAID6, }; +/* + * Table to convert BTRFS_RAID_* to the error code if minimum number of devices + * condition is not met. Zero means there's no corresponding + * BTRFS_ERROR_DEV_*_NOT_MET value. + */ +const int btrfs_raid_mindev_error[BTRFS_NR_RAID_TYPES] = { + [BTRFS_RAID_RAID10] = BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET, + [BTRFS_RAID_RAID1] = BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET, + [BTRFS_RAID_DUP] = 0, + [BTRFS_RAID_RAID0] = 0, + [BTRFS_RAID_SINGLE] = 0, + [BTRFS_RAID_RAID5] = BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET, + [BTRFS_RAID_RAID6] = BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET, +}; + static int init_first_rw_device(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_device *device); diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index c73d027e2f8b..a13a538cb01e 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -340,7 +340,7 @@ struct btrfs_raid_attr { }; extern const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES]; - +extern const int btrfs_raid_mindev_error[BTRFS_NR_RAID_TYPES]; extern const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES]; struct map_lookup {