Add a new member struct btrfs_raid_attr::raid_name so that btrfs_raid_array[] can maintain the name of the raid type, and so we can kill btrfs_raid_type_names[].
Signed-off-by: Anand Jain <anand.j...@oracle.com> Reviewed-by: Qu Wenruo <w...@suse.com> Reviewed-by: Nikolay Borisov <nbori...@suse.com> --- v2->v3: use const char raid_name[8] v1->v2: add space after =. Such as.. + .raid_name = "raid10", fs/btrfs/extent-tree.c | 18 ------------------ fs/btrfs/volumes.c | 15 +++++++++++++++ fs/btrfs/volumes.h | 3 +++ 3 files changed, 18 insertions(+), 18 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 90d28a3727c6..4742734a73d7 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -7338,24 +7338,6 @@ wait_block_group_cache_done(struct btrfs_block_group_cache *cache) return ret; } -static const char *btrfs_raid_type_names[BTRFS_NR_RAID_TYPES] = { - [BTRFS_RAID_RAID10] = "raid10", - [BTRFS_RAID_RAID1] = "raid1", - [BTRFS_RAID_DUP] = "dup", - [BTRFS_RAID_RAID0] = "raid0", - [BTRFS_RAID_SINGLE] = "single", - [BTRFS_RAID_RAID5] = "raid5", - [BTRFS_RAID_RAID6] = "raid6", -}; - -static const char *get_raid_name(enum btrfs_raid_types type) -{ - if (type >= BTRFS_NR_RAID_TYPES) - return NULL; - - return btrfs_raid_type_names[type]; -} - enum btrfs_loop_type { LOOP_CACHING_NOWAIT = 0, LOOP_CACHING_WAIT = 1, diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 9c29fdca9075..5bb18ad6433d 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -52,6 +52,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 1, .devs_increment = 2, .ncopies = 2, + .raid_name = "raid10", }, [BTRFS_RAID_RAID1] = { .sub_stripes = 1, @@ -61,6 +62,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 1, .devs_increment = 2, .ncopies = 2, + .raid_name = "raid1", }, [BTRFS_RAID_DUP] = { .sub_stripes = 1, @@ -70,6 +72,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 0, .devs_increment = 1, .ncopies = 2, + .raid_name = "dup", }, [BTRFS_RAID_RAID0] = { .sub_stripes = 1, @@ -79,6 +82,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 0, .devs_increment = 1, .ncopies = 1, + .raid_name = "raid0", }, [BTRFS_RAID_SINGLE] = { .sub_stripes = 1, @@ -88,6 +92,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 0, .devs_increment = 1, .ncopies = 1, + .raid_name = "single", }, [BTRFS_RAID_RAID5] = { .sub_stripes = 1, @@ -97,6 +102,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 1, .devs_increment = 1, .ncopies = 2, + .raid_name = "raid5", }, [BTRFS_RAID_RAID6] = { .sub_stripes = 1, @@ -106,9 +112,18 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = { .tolerated_failures = 2, .devs_increment = 1, .ncopies = 3, + .raid_name = "raid6", }, }; +const char *get_raid_name(enum btrfs_raid_types type) +{ + if (type >= BTRFS_NR_RAID_TYPES) + return NULL; + + return btrfs_raid_array[type].raid_name; +} + const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES] = { [BTRFS_RAID_RAID10] = BTRFS_BLOCK_GROUP_RAID10, [BTRFS_RAID_RAID1] = BTRFS_BLOCK_GROUP_RAID1, diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index ef220d541d4b..d6edff847871 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -342,6 +342,7 @@ struct btrfs_raid_attr { int tolerated_failures; /* max tolerated fail devs */ int devs_increment; /* ndevs has to be a multiple of this */ int ncopies; /* how many copies to data has */ + const char raid_name[8];/* name of the raid */ }; extern const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES]; @@ -563,6 +564,8 @@ static inline enum btrfs_raid_types btrfs_bg_flags_to_raid_index(u64 flags) return BTRFS_RAID_SINGLE; /* BTRFS_BLOCK_GROUP_SINGLE */ } +const char *get_raid_name(enum btrfs_raid_types type); + void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info); void btrfs_update_commit_device_bytes_used(struct btrfs_transaction *trans); -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html