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 path = btrfs_alloc_path();
24 btrfs_init_path(path);
25 data_size = sizeof(*dir_item) + name_len;
26 ret = btrfs_insert_empty_item(trans, root, path, &key, data_size);
30 dir_item = btrfs_item_ptr(btrfs_buffer_leaf(path->nodes[0]),
32 struct btrfs_dir_item);
33 btrfs_set_dir_objectid(dir_item, objectid);
34 btrfs_set_dir_type(dir_item, type);
35 btrfs_set_dir_flags(dir_item, 0);
36 btrfs_set_dir_name_len(dir_item, name_len);
37 name_ptr = (char *)(dir_item + 1);
38 btrfs_memcpy(root, path->nodes[0]->b_data, name_ptr, name, name_len);
39 btrfs_mark_buffer_dirty(path->nodes[0]);
41 btrfs_release_path(root, path);
42 btrfs_free_path(path);
46 int btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
47 *root, struct btrfs_path *path, u64 dir,
48 const char *name, int name_len, int mod)
52 int ins_len = mod < 0 ? -1 : 0;
57 btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY);
58 ret = btrfs_name_hash(name, name_len, &key.offset);
60 ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
64 int btrfs_match_dir_item_name(struct btrfs_root *root,
65 struct btrfs_path *path,
66 const char *name, int name_len)
68 struct btrfs_dir_item *dir_item;
71 dir_item = btrfs_item_ptr(btrfs_buffer_leaf(path->nodes[0]),
73 struct btrfs_dir_item);
74 if (btrfs_dir_name_len(dir_item) != name_len)
76 name_ptr = (char *)(dir_item + 1);
77 if (memcmp(name_ptr, name, name_len))