diff options
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 654df38faa7a..d110fb03ec0d 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -544,6 +544,28 @@ static inline void btrfs_dev_stat_reset(struct btrfs_device *dev, btrfs_dev_stat_set(dev, index, 0); } +/* + * Convert block group flags (BTRFS_BLOCK_GROUP_*) to btrfs_raid_types, which + * can be used as index to access btrfs_raid_array[]. + */ +static inline enum btrfs_raid_types btrfs_bg_flags_to_raid_index(u64 flags) +{ + if (flags & BTRFS_BLOCK_GROUP_RAID10) + return BTRFS_RAID_RAID10; + else if (flags & BTRFS_BLOCK_GROUP_RAID1) + return BTRFS_RAID_RAID1; + else if (flags & BTRFS_BLOCK_GROUP_DUP) + return BTRFS_RAID_DUP; + else if (flags & BTRFS_BLOCK_GROUP_RAID0) + return BTRFS_RAID_RAID0; + else if (flags & BTRFS_BLOCK_GROUP_RAID5) + return BTRFS_RAID_RAID5; + else if (flags & BTRFS_BLOCK_GROUP_RAID6) + return BTRFS_RAID_RAID6; + + return BTRFS_RAID_SINGLE; /* BTRFS_BLOCK_GROUP_SINGLE */ +} + void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info); void btrfs_update_commit_device_bytes_used(struct btrfs_transaction *trans); |