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Btrfs: Reorder extent back refs to differentiate btree blocks from file data

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-12-13 11:13:32 -05:00
parent 6caab489c5
commit f6dbff55d7
2 changed files with 10 additions and 10 deletions
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4
fs/btrfs/ctree.h
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@ -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))