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, \
22 #define bch2_bkey_ops_inode_v2 ((struct bkey_ops) { \
23 .key_invalid = bch2_inode_v2_invalid, \
24 .val_to_text = bch2_inode_to_text, \
25 .trans_trigger = bch2_trans_mark_inode, \
26 .atomic_trigger = bch2_mark_inode, \
29 #define bch2_bkey_ops_inode_v3 ((struct bkey_ops) { \
30 .key_invalid = bch2_inode_v3_invalid, \
31 .val_to_text = bch2_inode_to_text, \
32 .trans_trigger = bch2_trans_mark_inode, \
33 .atomic_trigger = bch2_mark_inode, \
36 static inline bool bkey_is_inode(const struct bkey *k)
38 return k->type == KEY_TYPE_inode ||
39 k->type == KEY_TYPE_inode_v2 ||
40 k->type == KEY_TYPE_inode_v3;
43 int bch2_inode_generation_invalid(const struct bch_fs *, struct bkey_s_c,
44 unsigned, struct printbuf *);
45 void bch2_inode_generation_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
47 #define bch2_bkey_ops_inode_generation ((struct bkey_ops) { \
48 .key_invalid = bch2_inode_generation_invalid, \
49 .val_to_text = bch2_inode_generation_to_text, \
56 } __packed __aligned(4) u96;
60 struct bch_inode_unpacked {
70 #define x(_name, _bits) u##_bits _name;
75 struct bkey_inode_buf {
76 struct bkey_i_inode_v3 inode;
78 #define x(_name, _bits) + 8 + _bits / 8
79 u8 _pad[0 + BCH_INODE_FIELDS_v3()];
81 } __packed __aligned(8);
83 void bch2_inode_pack(struct bkey_inode_buf *, const struct bch_inode_unpacked *);
84 int bch2_inode_unpack(struct bkey_s_c, struct bch_inode_unpacked *);
85 struct bkey_i *bch2_inode_to_v3(struct btree_trans *, struct bkey_i *);
87 void bch2_inode_unpacked_to_text(struct printbuf *, struct bch_inode_unpacked *);
89 int bch2_inode_peek(struct btree_trans *, struct btree_iter *,
90 struct bch_inode_unpacked *, subvol_inum, unsigned);
91 int bch2_inode_write(struct btree_trans *, struct btree_iter *,
92 struct bch_inode_unpacked *);
94 void bch2_inode_init_early(struct bch_fs *,
95 struct bch_inode_unpacked *);
96 void bch2_inode_init_late(struct bch_inode_unpacked *, u64,
97 uid_t, gid_t, umode_t, dev_t,
98 struct bch_inode_unpacked *);
99 void bch2_inode_init(struct bch_fs *, struct bch_inode_unpacked *,
100 uid_t, gid_t, umode_t, dev_t,
101 struct bch_inode_unpacked *);
103 int bch2_inode_create(struct btree_trans *, struct btree_iter *,
104 struct bch_inode_unpacked *, u32, u64);
106 int bch2_inode_rm(struct bch_fs *, subvol_inum);
108 int bch2_inode_find_by_inum_trans(struct btree_trans *, subvol_inum,
109 struct bch_inode_unpacked *);
110 int bch2_inode_find_by_inum(struct bch_fs *, subvol_inum,
111 struct bch_inode_unpacked *);
113 #define inode_opt_get(_c, _inode, _name) \
114 ((_inode)->bi_##_name ? (_inode)->bi_##_name - 1 : (_c)->opts._name)
116 static inline void bch2_inode_opt_set(struct bch_inode_unpacked *inode,
117 enum inode_opt_id id, u64 v)
120 #define x(_name, ...) \
121 case Inode_opt_##_name: \
122 inode->bi_##_name = v; \
131 static inline u64 bch2_inode_opt_get(struct bch_inode_unpacked *inode,
132 enum inode_opt_id id)
135 #define x(_name, ...) \
136 case Inode_opt_##_name: \
137 return inode->bi_##_name;
145 static inline u8 mode_to_type(umode_t mode)
147 return (mode >> 12) & 15;
150 static inline u8 inode_d_type(struct bch_inode_unpacked *inode)
152 return inode->bi_subvol ? DT_SUBVOL : mode_to_type(inode->bi_mode);
157 static inline unsigned nlink_bias(umode_t mode)
159 return S_ISDIR(mode) ? 2 : 1;
162 static inline unsigned bch2_inode_nlink_get(struct bch_inode_unpacked *bi)
164 return bi->bi_flags & BCH_INODE_UNLINKED
166 : bi->bi_nlink + nlink_bias(bi->bi_mode);
169 static inline void bch2_inode_nlink_set(struct bch_inode_unpacked *bi,
173 bi->bi_nlink = nlink - nlink_bias(bi->bi_mode);
174 bi->bi_flags &= ~BCH_INODE_UNLINKED;
177 bi->bi_flags |= BCH_INODE_UNLINKED;
181 int bch2_inode_nlink_inc(struct bch_inode_unpacked *);
182 void bch2_inode_nlink_dec(struct btree_trans *, struct bch_inode_unpacked *);
184 struct bch_opts bch2_inode_opts_to_opts(struct bch_inode_unpacked *);
185 void bch2_inode_opts_get(struct bch_io_opts *, struct bch_fs *,
186 struct bch_inode_unpacked *);
188 #endif /* _BCACHEFS_INODE_H */