1 #include <linux/module.h>
5 #include "transaction.h"
7 int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
8 *root, const char *name, int name_len, u64 dir, u64
12 struct btrfs_path path;
13 struct btrfs_dir_item *dir_item;
20 btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY);
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(trans, root, &path, &key, data_size);
29 dir_item = btrfs_item_ptr(btrfs_buffer_leaf(path.nodes[0]),
31 struct btrfs_dir_item);
32 btrfs_set_dir_objectid(dir_item, objectid);
33 btrfs_set_dir_type(dir_item, type);
34 btrfs_set_dir_flags(dir_item, 0);
35 btrfs_set_dir_name_len(dir_item, name_len);
36 name_ptr = (char *)(dir_item + 1);
37 btrfs_memcpy(root, path.nodes[0]->b_data, name_ptr, name, name_len);
38 btrfs_mark_buffer_dirty(path.nodes[0]);
40 btrfs_release_path(root, &path);
44 int btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
45 *root, struct btrfs_path *path, u64 dir,
46 const char *name, int name_len, int mod)
50 int ins_len = mod < 0 ? -1 : 0;
55 btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY);
56 ret = btrfs_name_hash(name, name_len, &key.offset);
58 ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
62 int btrfs_match_dir_item_name(struct btrfs_root *root,
63 struct btrfs_path *path,
64 const char *name, int name_len)
66 struct btrfs_dir_item *dir_item;
69 dir_item = btrfs_item_ptr(btrfs_buffer_leaf(path->nodes[0]),
71 struct btrfs_dir_item);
72 if (btrfs_dir_name_len(dir_item) != name_len)
74 name_ptr = (char *)(dir_item + 1);
75 if (memcmp(name_ptr, name, name_len))