^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2000-2005 Silicon Graphics, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef __XFS_QUOTA_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define __XFS_QUOTA_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "xfs_quota_defs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Kernel only quota definitions and functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct xfs_trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct xfs_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * This check is done typically without holding the inode lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * that may seem racy, but it is harmless in the context that it is used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * The inode cannot go inactive as long a reference is kept, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * therefore if dquot(s) were attached, they'll stay consistent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * If, for example, the ownership of the inode changes while
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * we didn't have the inode locked, the appropriate dquot(s) will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * attached atomically.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define XFS_NOT_DQATTACHED(mp, ip) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) ((XFS_IS_UQUOTA_ON(mp) && (ip)->i_udquot == NULL) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) (XFS_IS_GQUOTA_ON(mp) && (ip)->i_gdquot == NULL) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) (XFS_IS_PQUOTA_ON(mp) && (ip)->i_pdquot == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define XFS_QM_NEED_QUOTACHECK(mp) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ((XFS_IS_UQUOTA_ON(mp) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) (mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) (XFS_IS_GQUOTA_ON(mp) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) (XFS_IS_PQUOTA_ON(mp) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static inline uint
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) xfs_quota_chkd_flag(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) xfs_dqtype_t type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) case XFS_DQTYPE_USER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return XFS_UQUOTA_CHKD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) case XFS_DQTYPE_GROUP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return XFS_GQUOTA_CHKD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) case XFS_DQTYPE_PROJ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return XFS_PQUOTA_CHKD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * The structure kept inside the xfs_trans_t keep track of dquot changes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * within a transaction and apply them later.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct xfs_dqtrx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct xfs_dquot *qt_dquot; /* the dquot this refers to */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) uint64_t qt_blk_res; /* blks reserved on a dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) int64_t qt_bcount_delta; /* dquot blk count changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) int64_t qt_delbcnt_delta; /* delayed dquot blk count changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) uint64_t qt_rtblk_res; /* # blks reserved on a dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) uint64_t qt_rtblk_res_used;/* # blks used from reservation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int64_t qt_rtbcount_delta;/* dquot realtime blk changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int64_t qt_delrtb_delta; /* delayed RT blk count changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) uint64_t qt_ino_res; /* inode reserved on a dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) uint64_t qt_ino_res_used; /* inodes used from the reservation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) int64_t qt_icount_delta; /* dquot inode count changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #ifdef CONFIG_XFS_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) extern void xfs_trans_dup_dqinfo(struct xfs_trans *, struct xfs_trans *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) extern void xfs_trans_free_dqinfo(struct xfs_trans *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) extern void xfs_trans_mod_dquot_byino(struct xfs_trans *, struct xfs_inode *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) uint, int64_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) extern void xfs_trans_apply_dquot_deltas(struct xfs_trans *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) extern int xfs_trans_reserve_quota_nblks(struct xfs_trans *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct xfs_inode *, int64_t, long, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct xfs_mount *, struct xfs_dquot *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct xfs_dquot *, struct xfs_dquot *, int64_t, long, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) extern int xfs_qm_vop_dqalloc(struct xfs_inode *, kuid_t, kgid_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) prid_t, uint, struct xfs_dquot **, struct xfs_dquot **,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct xfs_dquot **);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) extern int xfs_qm_vop_rename_dqattach(struct xfs_inode **);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) extern struct xfs_dquot *xfs_qm_vop_chown(struct xfs_trans *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) extern int xfs_qm_vop_chown_reserve(struct xfs_trans *, struct xfs_inode *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct xfs_dquot *, struct xfs_dquot *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct xfs_dquot *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) extern int xfs_qm_dqattach(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) extern int xfs_qm_dqattach_locked(struct xfs_inode *ip, bool doalloc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) extern void xfs_qm_dqdetach(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) extern void xfs_qm_dqrele(struct xfs_dquot *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) extern void xfs_qm_statvfs(struct xfs_inode *, struct kstatfs *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) extern int xfs_qm_newmount(struct xfs_mount *, uint *, uint *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) extern void xfs_qm_mount_quotas(struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) extern void xfs_qm_unmount(struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) extern void xfs_qm_unmount_quotas(struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) xfs_qm_vop_dqalloc(struct xfs_inode *ip, kuid_t kuid, kgid_t kgid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) prid_t prid, uint flags, struct xfs_dquot **udqp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct xfs_dquot **gdqp, struct xfs_dquot **pdqp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) *udqp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) *gdqp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *pdqp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define xfs_trans_dup_dqinfo(tp, tp2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define xfs_trans_free_dqinfo(tp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define xfs_trans_apply_dquot_deltas(tp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define xfs_trans_unreserve_and_mod_dquots(tp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct xfs_inode *ip, int64_t nblks, long ninos, uint flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct xfs_mount *mp, struct xfs_dquot *udqp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct xfs_dquot *gdqp, struct xfs_dquot *pdqp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int64_t nblks, long nions, uint flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define xfs_qm_vop_create_dqattach(tp, ip, u, g, p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) #define xfs_qm_vop_rename_dqattach(it) (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #define xfs_qm_vop_chown(tp, ip, old, new) (NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define xfs_qm_vop_chown_reserve(tp, ip, u, g, p, fl) (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define xfs_qm_dqattach(ip) (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define xfs_qm_dqattach_locked(ip, fl) (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #define xfs_qm_dqdetach(ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #define xfs_qm_dqrele(d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define xfs_qm_statvfs(ip, s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define xfs_qm_newmount(mp, a, b) (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define xfs_qm_mount_quotas(mp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define xfs_qm_unmount(mp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define xfs_qm_unmount_quotas(mp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #endif /* CONFIG_XFS_QUOTA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) xfs_trans_reserve_quota_nblks(tp, ip, -(nblks), -(ninos), flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) #define xfs_trans_reserve_quota(tp, mp, ud, gd, pd, nb, ni, f) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) xfs_trans_reserve_quota_bydquots(tp, mp, ud, gd, pd, nb, ni, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) f | XFS_QMOPT_RES_REGBLKS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #endif /* __XFS_QUOTA_H__ */