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| author | Chris Mason <chris.mason@oracle.com> | 2007-12-13 11:13:32 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:58 -0400 |
| commit | f6dbff55d77dee363c22873481db54d3bada3ea6 (patch) | |
| tree | 9a669d43101730bd48044e4943ea833fc2320c15 /fs/btrfs/ctree.h | |
| parent | 6caab489c5866788ae64a72986520b1f0e40c706 (diff) | |
| download | lwn-f6dbff55d77dee363c22873481db54d3bada3ea6.tar.gz lwn-f6dbff55d77dee363c22873481db54d3bada3ea6.zip | |
Btrfs: Reorder extent back refs to differentiate btree blocks from file data
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 035fa1550343..052555ced44d 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -37,11 +37,12 @@ extern struct kmem_cache *btrfs_path_cachep; #define BTRFS_MAGIC "_B2RfS_M" +#define BTRFS_MAX_LEVEL 8 #define BTRFS_ROOT_TREE_OBJECTID 1ULL #define BTRFS_EXTENT_TREE_OBJECTID 2ULL #define BTRFS_FS_TREE_OBJECTID 3ULL #define BTRFS_ROOT_TREE_DIR_OBJECTID 4ULL -#define BTRFS_FIRST_FREE_OBJECTID 5ULL +#define BTRFS_FIRST_FREE_OBJECTID 256ULL /* * we can actually store much bigger names, but lets not confuse the rest @@ -107,7 +108,6 @@ struct btrfs_header { u8 level; } __attribute__ ((__packed__)); -#define BTRFS_MAX_LEVEL 8 #define BTRFS_NODEPTRS_PER_BLOCK(r) (((r)->nodesize - \ sizeof(struct btrfs_header)) / \ sizeof(struct btrfs_key_ptr)) |