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174f930b8e
This adds a new field to bkey_ops for the minimum size of the value, which standardizes that check and also enforces the new rule (previously done somewhat ad-hoc) that we can extend value types by adding new fields on to the end. To make that work we do _not_ initialize min_val_size with sizeof, instead we initialize it to the size of the first version of those values. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_QUOTA_H
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#define _BCACHEFS_QUOTA_H
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#include "inode.h"
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#include "quota_types.h"
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extern const struct bch_sb_field_ops bch_sb_field_ops_quota;
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int bch2_quota_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
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void bch2_quota_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
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#define bch2_bkey_ops_quota ((struct bkey_ops) { \
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.key_invalid = bch2_quota_invalid, \
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.val_to_text = bch2_quota_to_text, \
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.min_val_size = 32, \
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})
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static inline struct bch_qid bch_qid(struct bch_inode_unpacked *u)
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{
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return (struct bch_qid) {
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.q[QTYP_USR] = u->bi_uid,
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.q[QTYP_GRP] = u->bi_gid,
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.q[QTYP_PRJ] = u->bi_project ? u->bi_project - 1 : 0,
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};
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}
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static inline unsigned enabled_qtypes(struct bch_fs *c)
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{
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return ((c->opts.usrquota << QTYP_USR)|
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(c->opts.grpquota << QTYP_GRP)|
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(c->opts.prjquota << QTYP_PRJ));
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}
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#ifdef CONFIG_BCACHEFS_QUOTA
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int bch2_quota_acct(struct bch_fs *, struct bch_qid, enum quota_counters,
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s64, enum quota_acct_mode);
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int bch2_quota_transfer(struct bch_fs *, unsigned, struct bch_qid,
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struct bch_qid, u64, enum quota_acct_mode);
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void bch2_fs_quota_exit(struct bch_fs *);
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void bch2_fs_quota_init(struct bch_fs *);
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int bch2_fs_quota_read(struct bch_fs *);
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extern const struct quotactl_ops bch2_quotactl_operations;
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#else
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static inline int bch2_quota_acct(struct bch_fs *c, struct bch_qid qid,
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enum quota_counters counter, s64 v,
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enum quota_acct_mode mode)
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{
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return 0;
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}
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static inline int bch2_quota_transfer(struct bch_fs *c, unsigned qtypes,
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struct bch_qid dst,
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struct bch_qid src, u64 space,
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enum quota_acct_mode mode)
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{
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return 0;
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}
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static inline void bch2_fs_quota_exit(struct bch_fs *c) {}
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static inline void bch2_fs_quota_init(struct bch_fs *c) {}
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static inline int bch2_fs_quota_read(struct bch_fs *c) { return 0; }
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#endif
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#endif /* _BCACHEFS_QUOTA_H */
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