1 files changed, 9 insertions, 1 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9ee099f3f834..541ce9a9949e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -953,7 +953,15 @@ struct btrfs_dev_replace_item {
 #define BTRFS_BLOCK_GROUP_DUP           (1ULL << 5)
 #define BTRFS_BLOCK_GROUP_RAID10        (1ULL << 6)
 #define BTRFS_BLOCK_GROUP_RESERVED      BTRFS_AVAIL_ALLOC_BIT_SINGLE
-#define BTRFS_NR_RAID_TYPES             5
+
+enum btrfs_raid_types {
+        BTRFS_RAID_RAID10,
+        BTRFS_RAID_RAID1,
+        BTRFS_RAID_DUP,
+        BTRFS_RAID_RAID0,
+        BTRFS_RAID_SINGLE,
+        BTRFS_NR_RAID_TYPES
+};
 
 #define BTRFS_BLOCK_GROUP_TYPE_MASK     (BTRFS_BLOCK_GROUP_DATA |    \
                                          BTRFS_BLOCK_GROUP_SYSTEM |  \