3 #include "kerncompat.h"
4 #include "radix-tree.h"
8 #include "transaction.h"
10 int btrfs_insert_dir_item(struct btrfs_trans_handle
*trans
, struct btrfs_root
11 *root
, char *name
, int name_len
, u64 dir
, u64
15 struct btrfs_path path
;
16 struct btrfs_dir_item
*dir_item
;
23 btrfs_set_key_type(&key
, BTRFS_DIR_ITEM_KEY
);
24 if (name_len
== 1 && *name
== '.')
26 else if (name_len
== 2 && name
[0] == '.' && name
[1] == '.')
29 ret
= btrfs_name_hash(name
, name_len
, &key
.offset
);
31 btrfs_init_path(&path
);
32 data_size
= sizeof(*dir_item
) + name_len
;
33 ret
= btrfs_insert_empty_item(trans
, root
, &path
, &key
, data_size
);
37 dir_item
= btrfs_item_ptr(&path
.nodes
[0]->leaf
, path
.slots
[0],
38 struct btrfs_dir_item
);
39 btrfs_set_dir_objectid(dir_item
, objectid
);
40 btrfs_set_dir_type(dir_item
, type
);
41 btrfs_set_dir_flags(dir_item
, 0);
42 btrfs_set_dir_name_len(dir_item
, name_len
);
43 name_ptr
= (char *)(dir_item
+ 1);
44 memcpy(name_ptr
, name
, name_len
);
46 btrfs_release_path(root
, &path
);
50 int btrfs_lookup_dir_item(struct btrfs_trans_handle
*trans
, struct btrfs_root
51 *root
, struct btrfs_path
*path
, u64 dir
, char *name
,
52 int name_len
, int mod
)
56 int ins_len
= mod
< 0 ? -1 : 0;
61 btrfs_set_key_type(&key
, BTRFS_DIR_ITEM_KEY
);
62 ret
= btrfs_name_hash(name
, name_len
, &key
.offset
);
64 ret
= btrfs_search_slot(trans
, root
, &key
, path
, ins_len
, cow
);
68 int btrfs_match_dir_item_name(struct btrfs_root
*root
,
69 struct btrfs_path
*path
, char
72 struct btrfs_dir_item
*dir_item
;
75 dir_item
= btrfs_item_ptr(&path
->nodes
[0]->leaf
, path
->slots
[0],
76 struct btrfs_dir_item
);
77 if (btrfs_dir_name_len(dir_item
) != name_len
)
79 name_ptr
= (char *)(dir_item
+ 1);
80 if (memcmp(name_ptr
, name
, name_len
))