xref: /linux/fs/bcachefs/quota.h (revision 170aafe35cb98e0f3fbacb446ea86389fbce22ea)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_QUOTA_H
3 #define _BCACHEFS_QUOTA_H
4 
5 #include "inode.h"
6 #include "quota_types.h"
7 
8 enum bch_validate_flags;
9 extern const struct bch_sb_field_ops bch_sb_field_ops_quota;
10 
11 int bch2_quota_validate(struct bch_fs *, struct bkey_s_c, enum bch_validate_flags);
12 void bch2_quota_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
13 
14 #define bch2_bkey_ops_quota ((struct bkey_ops) {	\
15 	.key_validate	= bch2_quota_validate,		\
16 	.val_to_text	= bch2_quota_to_text,		\
17 	.min_val_size	= 32,				\
18 })
19 
20 static inline struct bch_qid bch_qid(struct bch_inode_unpacked *u)
21 {
22 	return (struct bch_qid) {
23 		.q[QTYP_USR] = u->bi_uid,
24 		.q[QTYP_GRP] = u->bi_gid,
25 		.q[QTYP_PRJ] = u->bi_project ? u->bi_project - 1 : 0,
26 	};
27 }
28 
29 static inline unsigned enabled_qtypes(struct bch_fs *c)
30 {
31 	return ((c->opts.usrquota << QTYP_USR)|
32 		(c->opts.grpquota << QTYP_GRP)|
33 		(c->opts.prjquota << QTYP_PRJ));
34 }
35 
36 #ifdef CONFIG_BCACHEFS_QUOTA
37 
38 int bch2_quota_acct(struct bch_fs *, struct bch_qid, enum quota_counters,
39 		    s64, enum quota_acct_mode);
40 
41 int bch2_quota_transfer(struct bch_fs *, unsigned, struct bch_qid,
42 			struct bch_qid, u64, enum quota_acct_mode);
43 
44 void bch2_fs_quota_exit(struct bch_fs *);
45 void bch2_fs_quota_init(struct bch_fs *);
46 int bch2_fs_quota_read(struct bch_fs *);
47 
48 extern const struct quotactl_ops bch2_quotactl_operations;
49 
50 #else
51 
52 static inline int bch2_quota_acct(struct bch_fs *c, struct bch_qid qid,
53 				  enum quota_counters counter, s64 v,
54 				  enum quota_acct_mode mode)
55 {
56 	return 0;
57 }
58 
59 static inline int bch2_quota_transfer(struct bch_fs *c, unsigned qtypes,
60 				      struct bch_qid dst,
61 				      struct bch_qid src, u64 space,
62 				      enum quota_acct_mode mode)
63 {
64 	return 0;
65 }
66 
67 static inline void bch2_fs_quota_exit(struct bch_fs *c) {}
68 static inline void bch2_fs_quota_init(struct bch_fs *c) {}
69 static inline int bch2_fs_quota_read(struct bch_fs *c) { return 0; }
70 
71 #endif
72 
73 #endif /* _BCACHEFS_QUOTA_H */
74