1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_INODE_H
3 #define _BCACHEFS_INODE_H
8 extern const char * const bch2_inode_opts[];
10 int bch2_inode_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
11 int bch2_inode_v2_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
12 int bch2_inode_v3_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
13 void bch2_inode_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
15 #define bch2_bkey_ops_inode ((struct bkey_ops) { \
16 .key_invalid = bch2_inode_invalid, \
17 .val_to_text = bch2_inode_to_text, \
18 .trans_trigger = bch2_trans_mark_inode, \
19 .atomic_trigger = bch2_mark_inode, \
23 #define bch2_bkey_ops_inode_v2 ((struct bkey_ops) { \
24 .key_invalid = bch2_inode_v2_invalid, \
25 .val_to_text = bch2_inode_to_text, \
26 .trans_trigger = bch2_trans_mark_inode, \
27 .atomic_trigger = bch2_mark_inode, \
31 #define bch2_bkey_ops_inode_v3 ((struct bkey_ops) { \
32 .key_invalid = bch2_inode_v3_invalid, \
33 .val_to_text = bch2_inode_to_text, \
34 .trans_trigger = bch2_trans_mark_inode, \
35 .atomic_trigger = bch2_mark_inode, \
39 static inline bool bkey_is_inode(const struct bkey *k)
41 return k->type == KEY_TYPE_inode ||
42 k->type == KEY_TYPE_inode_v2 ||
43 k->type == KEY_TYPE_inode_v3;
46 int bch2_inode_generation_invalid(const struct bch_fs *, struct bkey_s_c,
47 unsigned, struct printbuf *);
48 void bch2_inode_generation_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
50 #define bch2_bkey_ops_inode_generation ((struct bkey_ops) { \
51 .key_invalid = bch2_inode_generation_invalid, \
52 .val_to_text = bch2_inode_generation_to_text, \
60 } __packed __aligned(4) u96;
64 struct bch_inode_unpacked {
74 #define x(_name, _bits) u##_bits _name;
79 struct bkey_inode_buf {
80 struct bkey_i_inode_v3 inode;
82 #define x(_name, _bits) + 8 + _bits / 8
83 u8 _pad[0 + BCH_INODE_FIELDS_v3()];
85 } __packed __aligned(8);
87 void bch2_inode_pack(struct bkey_inode_buf *, const struct bch_inode_unpacked *);
88 int bch2_inode_unpack(struct bkey_s_c, struct bch_inode_unpacked *);
89 struct bkey_i *bch2_inode_to_v3(struct btree_trans *, struct bkey_i *);
91 void bch2_inode_unpacked_to_text(struct printbuf *, struct bch_inode_unpacked *);
93 int bch2_inode_peek(struct btree_trans *, struct btree_iter *,
94 struct bch_inode_unpacked *, subvol_inum, unsigned);
95 int bch2_inode_write(struct btree_trans *, struct btree_iter *,
96 struct bch_inode_unpacked *);
98 void bch2_inode_init_early(struct bch_fs *,
99 struct bch_inode_unpacked *);
100 void bch2_inode_init_late(struct bch_inode_unpacked *, u64,
101 uid_t, gid_t, umode_t, dev_t,
102 struct bch_inode_unpacked *);
103 void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *,
104 uid_t, gid_t, umode_t, dev_t,
105 struct bch_inode_unpacked *);
107 int bch2_inode_create(struct btree_trans *, struct btree_iter *,
108 struct bch_inode_unpacked *, u32, u64);
110 int bch2_inode_rm(struct bch_fs *, subvol_inum);
112 int bch2_inode_find_by_inum_trans(struct btree_trans *, subvol_inum,
113 struct bch_inode_unpacked *);
114 int bch2_inode_find_by_inum(struct bch_fs *, subvol_inum,
115 struct bch_inode_unpacked *);
117 #define inode_opt_get(_c, _inode, _name) \
118 ((_inode)->bi_##_name ? (_inode)->bi_##_name - 1 : (_c)->opts._name)
120 static inline void bch2_inode_opt_set(struct bch_inode_unpacked *inode,
121 enum inode_opt_id id, u64 v)
124 #define x(_name, ...) \
125 case Inode_opt_##_name: \
126 inode->bi_##_name = v; \
135 static inline u64 bch2_inode_opt_get(struct bch_inode_unpacked *inode,
136 enum inode_opt_id id)
139 #define x(_name, ...) \
140 case Inode_opt_##_name: \
141 return inode->bi_##_name;
149 static inline u8 mode_to_type(umode_t mode)
151 return (mode >> 12) & 15;
154 static inline u8 inode_d_type(struct bch_inode_unpacked *inode)
156 return inode->bi_subvol ? DT_SUBVOL : mode_to_type(inode->bi_mode);
161 static inline unsigned nlink_bias(umode_t mode)
163 return S_ISDIR(mode) ? 2 : 1;
166 static inline unsigned bch2_inode_nlink_get(struct bch_inode_unpacked *bi)
168 return bi->bi_flags & BCH_INODE_UNLINKED
170 : bi->bi_nlink + nlink_bias(bi->bi_mode);
173 static inline void bch2_inode_nlink_set(struct bch_inode_unpacked *bi,
177 bi->bi_nlink = nlink - nlink_bias(bi->bi_mode);
178 bi->bi_flags &= ~BCH_INODE_UNLINKED;
181 bi->bi_flags |= BCH_INODE_UNLINKED;
185 int bch2_inode_nlink_inc(struct bch_inode_unpacked *);
186 void bch2_inode_nlink_dec(struct btree_trans *, struct bch_inode_unpacked *);
188 struct bch_opts bch2_inode_opts_to_opts(struct bch_inode_unpacked *);
189 void bch2_inode_opts_get(struct bch_io_opts *, struct bch_fs *,
190 struct bch_inode_unpacked *);
192 #endif /* _BCACHEFS_INODE_H */