Btrfs: Add support for duplicate blocks on a single spindle

[linux-2.6-block.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0a207861472ef4541c6c5740be4d3b2f2d5325f4..72deae63ec28e61818ca55aaca56b35795206b58 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -419,6 +419,7 @@ struct btrfs_csum_item {
 #define BTRFS_BLOCK_GROUP_METADATA (1 << 2)
 #define BTRFS_BLOCK_GROUP_RAID0    (1 << 3)
 #define BTRFS_BLOCK_GROUP_RAID1    (1 << 4)
+#define BTRFS_BLOCK_GROUP_DUP     (1 << 5)
 
 
 struct btrfs_block_group_item {