1/* SPDX-License-Identifier: GPL-2.0 */
 2
 3#ifndef BTRFS_DIR_ITEM_H
 4#define BTRFS_DIR_ITEM_H
 5
 
 
 
 
 
 
 
 
 
 
 6int btrfs_check_dir_item_collision(struct btrfs_root *root, u64 dir,
 7			  const struct fscrypt_str *name);
 8int btrfs_insert_dir_item(struct btrfs_trans_handle *trans,
 9			  const struct fscrypt_str *name, struct btrfs_inode *dir,
10			  struct btrfs_key *location, u8 type, u64 index);
11struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans,
12					     struct btrfs_root *root,
13					     struct btrfs_path *path, u64 dir,
14					     const struct fscrypt_str *name, int mod);
15struct btrfs_dir_item *btrfs_lookup_dir_index_item(
16			struct btrfs_trans_handle *trans,
17			struct btrfs_root *root,
18			struct btrfs_path *path, u64 dir,
19			u64 index, const struct fscrypt_str *name, int mod);
20struct btrfs_dir_item *btrfs_search_dir_index_item(struct btrfs_root *root,
21			    struct btrfs_path *path, u64 dirid,
22			    const struct fscrypt_str *name);
23int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans,
24			      struct btrfs_root *root,
25			      struct btrfs_path *path,
26			      struct btrfs_dir_item *di);
27int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans,
28			    struct btrfs_root *root,
29			    struct btrfs_path *path, u64 objectid,
30			    const char *name, u16 name_len,
31			    const void *data, u16 data_len);
32struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
33					  struct btrfs_root *root,
34					  struct btrfs_path *path, u64 dir,
35					  const char *name, u16 name_len,
36					  int mod);
37struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_fs_info *fs_info,
38						 struct btrfs_path *path,
39						 const char *name,
40						 int name_len);
 
 
 
 
 
41
42#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2
 3#ifndef BTRFS_DIR_ITEM_H
 4#define BTRFS_DIR_ITEM_H
 5
 6#include <linux/types.h>
 7#include <linux/crc32c.h>
 8
 9struct fscrypt_str;
10struct btrfs_fs_info;
11struct btrfs_key;
12struct btrfs_path;
13struct btrfs_root;
14struct btrfs_trans_handle;
15
16int btrfs_check_dir_item_collision(struct btrfs_root *root, u64 dir,
17			  const struct fscrypt_str *name);
18int btrfs_insert_dir_item(struct btrfs_trans_handle *trans,
19			  const struct fscrypt_str *name, struct btrfs_inode *dir,
20			  const struct btrfs_key *location, u8 type, u64 index);
21struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans,
22					     struct btrfs_root *root,
23					     struct btrfs_path *path, u64 dir,
24					     const struct fscrypt_str *name, int mod);
25struct btrfs_dir_item *btrfs_lookup_dir_index_item(
26			struct btrfs_trans_handle *trans,
27			struct btrfs_root *root,
28			struct btrfs_path *path, u64 dir,
29			u64 index, const struct fscrypt_str *name, int mod);
30struct btrfs_dir_item *btrfs_search_dir_index_item(struct btrfs_root *root,
31			    struct btrfs_path *path, u64 dirid,
32			    const struct fscrypt_str *name);
33int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans,
34			      struct btrfs_root *root,
35			      struct btrfs_path *path,
36			      const struct btrfs_dir_item *di);
37int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans,
38			    struct btrfs_root *root,
39			    struct btrfs_path *path, u64 objectid,
40			    const char *name, u16 name_len,
41			    const void *data, u16 data_len);
42struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
43					  struct btrfs_root *root,
44					  struct btrfs_path *path, u64 dir,
45					  const char *name, u16 name_len,
46					  int mod);
47struct btrfs_dir_item *btrfs_match_dir_item_name(const struct btrfs_path *path,
 
48						 const char *name,
49						 int name_len);
50
51static inline u64 btrfs_name_hash(const char *name, int len)
52{
53       return crc32c((u32)~1, name, len);
54}
55
56#endif