3 #include "kerncompat.h"
4 #include "radix-tree.h"
9 int btrfs_insert_dir_item(struct btrfs_root *root, char *name, int name_len,
10 u64 dir, u64 objectid, u8 type)
13 struct btrfs_path path;
14 struct btrfs_dir_item *dir_item;
21 ret = btrfs_name_hash(name, name_len, &key.offset);
23 btrfs_init_path(&path);
24 data_size = sizeof(*dir_item) + name_len;
25 ret = btrfs_insert_empty_item(root, &path, &key, data_size);
29 dir_item = btrfs_item_ptr(&path.nodes[0]->leaf, path.slots[0],
30 struct btrfs_dir_item);
31 btrfs_set_dir_objectid(dir_item, objectid);
32 btrfs_set_dir_type(dir_item, type);
33 btrfs_set_dir_flags(dir_item, 0);
34 name_ptr = (char *)(dir_item + 1);
35 memcpy(name_ptr, name, name_len);
37 btrfs_release_path(root, &path);
41 int btrfs_del_dir_item(struct btrfs_root *root, u64 dir, char *name,
45 struct btrfs_path path;
50 ret = btrfs_name_hash(name, name_len, &key.offset);
52 btrfs_init_path(&path);
53 ret = btrfs_search_slot(root, &key, &path, 0, 1);
56 ret = btrfs_del_item(root, &path);
58 btrfs_release_path(root, &path);
62 int btrfs_lookup_dir_item(struct btrfs_root *root, u64 dir, char *name,
63 int name_len, u64 *objectid)
66 struct btrfs_path path;
67 struct btrfs_dir_item *dir_item;
71 struct btrfs_item *item;
75 ret = btrfs_name_hash(name, name_len, &key.offset);
77 btrfs_init_path(&path);
78 ret = btrfs_search_slot(root, &key, &path, 0, 0);
82 dir_item = btrfs_item_ptr(&path.nodes[0]->leaf, path.slots[0],
83 struct btrfs_dir_item);
85 item = path.nodes[0]->leaf.items + path.slots[0];
86 item_len = btrfs_item_size(item);
87 if (item_len != name_len + sizeof(struct btrfs_dir_item)) {
92 name_ptr = (char *)(dir_item + 1);
93 if (memcmp(name_ptr, name, name_len)) {
98 *objectid = btrfs_dir_objectid(dir_item);
100 btrfs_release_path(root, &path);