| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _BCACHEFS_DIRENT_H |
| 3 | #define _BCACHEFS_DIRENT_H |
| 4 | |
| 5 | #include "str_hash.h" |
| 6 | |
| 7 | extern const struct bch_hash_desc bch2_dirent_hash_desc; |
| 8 | |
| 9 | const char *bch2_dirent_invalid(const struct bch_fs *, struct bkey_s_c); |
| 10 | void bch2_dirent_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); |
| 11 | |
| 12 | #define bch2_bkey_ops_dirent (struct bkey_ops) { \ |
| 13 | .key_invalid = bch2_dirent_invalid, \ |
| 14 | .val_to_text = bch2_dirent_to_text, \ |
| 15 | } |
| 16 | |
| 17 | struct qstr; |
| 18 | struct file; |
| 19 | struct dir_context; |
| 20 | struct bch_fs; |
| 21 | struct bch_hash_info; |
| 22 | struct bch_inode_info; |
| 23 | |
| 24 | unsigned bch2_dirent_name_bytes(struct bkey_s_c_dirent); |
| 25 | |
| 26 | static inline unsigned dirent_val_u64s(unsigned len) |
| 27 | { |
| 28 | return DIV_ROUND_UP(offsetof(struct bch_dirent, d_name) + len, |
| 29 | sizeof(u64)); |
| 30 | } |
| 31 | |
| 32 | int bch2_dirent_create(struct btree_trans *, u64, |
| 33 | const struct bch_hash_info *, u8, |
| 34 | const struct qstr *, u64, int); |
| 35 | |
| 36 | int bch2_dirent_delete_at(struct btree_trans *, |
| 37 | const struct bch_hash_info *, |
| 38 | struct btree_iter *); |
| 39 | |
| 40 | enum bch_rename_mode { |
| 41 | BCH_RENAME, |
| 42 | BCH_RENAME_OVERWRITE, |
| 43 | BCH_RENAME_EXCHANGE, |
| 44 | }; |
| 45 | |
| 46 | int bch2_dirent_rename(struct btree_trans *, |
| 47 | u64, struct bch_hash_info *, |
| 48 | u64, struct bch_hash_info *, |
| 49 | const struct qstr *, u64 *, |
| 50 | const struct qstr *, u64 *, |
| 51 | enum bch_rename_mode); |
| 52 | |
| 53 | struct btree_iter * |
| 54 | __bch2_dirent_lookup_trans(struct btree_trans *, u64, |
| 55 | const struct bch_hash_info *, |
| 56 | const struct qstr *, unsigned); |
| 57 | u64 bch2_dirent_lookup(struct bch_fs *, u64, const struct bch_hash_info *, |
| 58 | const struct qstr *); |
| 59 | |
| 60 | int bch2_empty_dir_trans(struct btree_trans *, u64); |
| 61 | int bch2_readdir(struct bch_fs *, u64, struct dir_context *); |
| 62 | |
| 63 | #endif /* _BCACHEFS_DIRENT_H */ |