1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_DIRENT_H
#define _BCACHEFS_DIRENT_H
#include "str_hash.h"
extern const struct bch_hash_desc bch2_dirent_hash_desc;
const char *bch2_dirent_invalid(const struct bch_fs *, struct bkey_s_c);
void bch2_dirent_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
#define bch2_bkey_ops_dirent (struct bkey_ops) { \
.key_invalid = bch2_dirent_invalid, \
.val_to_text = bch2_dirent_to_text, \
}
struct qstr;
struct file;
struct dir_context;
struct bch_fs;
struct bch_hash_info;
struct bch_inode_info;
unsigned bch2_dirent_name_bytes(struct bkey_s_c_dirent);
static inline unsigned dirent_val_u64s(unsigned len)
{
return DIV_ROUND_UP(offsetof(struct bch_dirent, d_name) + len,
sizeof(u64));
}
int bch2_dirent_read_target(struct btree_trans *, subvol_inum,
struct bkey_s_c_dirent, subvol_inum *);
int bch2_dirent_create(struct btree_trans *, subvol_inum,
const struct bch_hash_info *, u8,
const struct qstr *, u64, u64 *, int);
static inline unsigned vfs_d_type(unsigned type)
{
return type == DT_SUBVOL ? DT_DIR : type;
}
enum bch_rename_mode {
BCH_RENAME,
BCH_RENAME_OVERWRITE,
BCH_RENAME_EXCHANGE,
};
int bch2_dirent_rename(struct btree_trans *,
subvol_inum, struct bch_hash_info *,
subvol_inum, struct bch_hash_info *,
const struct qstr *, subvol_inum *, u64 *,
const struct qstr *, subvol_inum *, u64 *,
enum bch_rename_mode);
int __bch2_dirent_lookup_trans(struct btree_trans *, struct btree_iter *,
subvol_inum, const struct bch_hash_info *,
const struct qstr *, subvol_inum *, unsigned);
u64 bch2_dirent_lookup(struct bch_fs *, subvol_inum,
const struct bch_hash_info *,
const struct qstr *, subvol_inum *);
int bch2_empty_dir_trans(struct btree_trans *, subvol_inum);
int bch2_readdir(struct bch_fs *, subvol_inum, struct dir_context *);
#endif /* _BCACHEFS_DIRENT_H */
|
