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Btrfs: drop the inode map tree

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-04-10 12:13:09 -04:00
committed by David Woodhouse
parent c5739bba52
commit 1b05da2ee6
8 changed files with 33 additions and 204 deletions
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39
fs/btrfs/ctree.h
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@@ -14,9 +14,8 @@ extern struct kmem_cache *btrfs_path_cachep;
#define BTRFS_ROOT_TREE_OBJECTID 1ULL
#define BTRFS_EXTENT_TREE_OBJECTID 2ULL
#define BTRFS_INODE_MAP_OBJECTID 3ULL
#define BTRFS_FS_TREE_OBJECTID 4ULL
#define BTRFS_FIRST_FREE_OBJECTID 5ULL
#define BTRFS_FS_TREE_OBJECTID 3ULL
#define BTRFS_FIRST_FREE_OBJECTID 4ULL
/*
* we can actually store much bigger names, but lets not confuse the rest
@@ -62,7 +61,6 @@ struct btrfs_header {
__le64 blocknr; /* which block this node is supposed to live in */
__le64 generation;
__le64 parentid; /* objectid of the tree root */
__le32 ham;
__le16 nritems;
__le16 flags;
u8 level;
@@ -226,23 +224,16 @@ struct btrfs_csum_item {
u8 csum[BTRFS_CSUM_SIZE];
} __attribute__ ((__packed__));
struct btrfs_inode_map_item {
u32 refs;
} __attribute__ ((__packed__));
struct crypto_hash;
struct btrfs_fs_info {
struct btrfs_root *extent_root;
struct btrfs_root *tree_root;
struct btrfs_root *inode_root;
struct btrfs_key current_insert;
struct btrfs_key last_insert;
struct radix_tree_root fs_roots_radix;
struct radix_tree_root pending_del_radix;
struct radix_tree_root pinned_radix;
u64 last_inode_alloc;
u64 generation;
u64 highest_inode;
struct btrfs_transaction *running_transaction;
struct btrfs_super_block *disk_super;
struct buffer_head *sb_buffer;
@@ -272,6 +263,8 @@ struct btrfs_root {
u32 blocksize;
int ref_cows;
u32 type;
u64 highest_inode;
u64 last_inode_alloc;
};
/* the lower bits in the key flags defines the item type */
@@ -320,16 +313,11 @@ struct btrfs_root {
*/
#define BTRFS_EXTENT_ITEM_KEY 8
/*
* the inode map records which inode numbers are in use and where
* they actually live on disk
*/
#define BTRFS_INODE_MAP_ITEM_KEY 9
/*
* string items are for debugging. They just store a short string of
* data in the FS
*/
#define BTRFS_STRING_ITEM_KEY 10
#define BTRFS_STRING_ITEM_KEY 9
static inline u64 btrfs_inode_generation(struct btrfs_inode_item *i)
{
@@ -883,17 +871,6 @@ static inline void btrfs_set_file_extent_num_blocks(struct
e->num_blocks = cpu_to_le64(val);
}
static inline u32 btrfs_inode_map_refs(struct btrfs_inode_map_item *m)
{
return le32_to_cpu(m->refs);
}
static inline void btrfs_set_inode_map_refs(struct btrfs_inode_map_item *m,
u32 val)
{
m->refs = cpu_to_le32(val);
}
static inline struct btrfs_root *btrfs_sb(struct super_block *sb)
{
return sb->s_fs_info;
@@ -996,12 +973,6 @@ int btrfs_match_dir_item_name(struct btrfs_root *root, struct btrfs_path *path,
int btrfs_find_free_objectid(struct btrfs_trans_handle *trans,
struct btrfs_root *fs_root,
u64 dirid, u64 *objectid);
int btrfs_insert_inode_map(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 objectid, struct btrfs_key *location);
int btrfs_lookup_inode_map(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct btrfs_path *path,
u64 objectid, int mod);
int btrfs_find_highest_inode(struct btrfs_root *fs_root, u64 *objectid);
/* inode-item.c */