1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
9 #include "xfs_dquot_item.h"
10 #include "xfs_dquot.h"
14 extern struct kmem_zone *xfs_qm_dqtrxzone;
17 * Number of bmaps that we ask from bmapi when doing a quotacheck.
18 * We make this restriction to keep the memory usage to a minimum.
20 #define XFS_DQITER_MAP_SIZE 10
22 #define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
23 !dqp->q_core.d_blk_hardlimit && \
24 !dqp->q_core.d_blk_softlimit && \
25 !dqp->q_core.d_rtb_hardlimit && \
26 !dqp->q_core.d_rtb_softlimit && \
27 !dqp->q_core.d_ino_hardlimit && \
28 !dqp->q_core.d_ino_softlimit && \
29 !dqp->q_core.d_bcount && \
30 !dqp->q_core.d_rtbcount && \
31 !dqp->q_core.d_icount)
34 * This defines the unit of allocation of dquots.
35 * Currently, it is just one file system block, and a 4K blk contains 30
36 * (136 * 30 = 4080) dquots. It's probably not worth trying to make
38 * XXXsup However, if this number is changed, we have to make sure that we don't
39 * implicitly assume that we do allocations in chunks of a single filesystem
40 * block in the dquot/xqm code.
42 #define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
44 /* Defaults for each quota type: time limits, warn limits, usage limits */
45 struct xfs_def_quota {
46 time64_t btimelimit; /* limit for blks timer */
47 time64_t itimelimit; /* limit for inodes timer */
48 time64_t rtbtimelimit; /* limit for rt blks timer */
49 xfs_qwarncnt_t bwarnlimit; /* limit for blks warnings */
50 xfs_qwarncnt_t iwarnlimit; /* limit for inodes warnings */
51 xfs_qwarncnt_t rtbwarnlimit; /* limit for rt blks warnings */
52 xfs_qcnt_t bhardlimit; /* default data blk hard limit */
53 xfs_qcnt_t bsoftlimit; /* default data blk soft limit */
54 xfs_qcnt_t ihardlimit; /* default inode count hard limit */
55 xfs_qcnt_t isoftlimit; /* default inode count soft limit */
56 xfs_qcnt_t rtbhardlimit; /* default realtime blk hard limit */
57 xfs_qcnt_t rtbsoftlimit; /* default realtime blk soft limit */
61 * Various quota information for individual filesystems.
62 * The mount structure keeps a pointer to this.
64 struct xfs_quotainfo {
65 struct radix_tree_root qi_uquota_tree;
66 struct radix_tree_root qi_gquota_tree;
67 struct radix_tree_root qi_pquota_tree;
68 struct mutex qi_tree_lock;
69 struct xfs_inode *qi_uquotaip; /* user quota inode */
70 struct xfs_inode *qi_gquotaip; /* group quota inode */
71 struct xfs_inode *qi_pquotaip; /* project quota inode */
72 struct list_lru qi_lru;
74 struct mutex qi_quotaofflock;/* to serialize quotaoff */
75 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
76 uint qi_dqperchunk; /* # ondisk dq in above chunk */
77 struct xfs_def_quota qi_usr_default;
78 struct xfs_def_quota qi_grp_default;
79 struct xfs_def_quota qi_prj_default;
80 struct shrinker qi_shrinker;
83 static inline struct radix_tree_root *
85 struct xfs_quotainfo *qi,
90 return &qi->qi_uquota_tree;
92 return &qi->qi_gquota_tree;
94 return &qi->qi_pquota_tree;
101 static inline struct xfs_inode *
102 xfs_quota_inode(xfs_mount_t *mp, uint dq_flags)
104 switch (dq_flags & XFS_DQ_ALLTYPES) {
106 return mp->m_quotainfo->qi_uquotaip;
108 return mp->m_quotainfo->qi_gquotaip;
110 return mp->m_quotainfo->qi_pquotaip;
118 xfs_dquot_type(struct xfs_dquot *dqp)
120 if (XFS_QM_ISUDQ(dqp))
122 if (XFS_QM_ISGDQ(dqp))
124 ASSERT(XFS_QM_ISPDQ(dqp));
128 extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp,
129 uint field, int64_t delta);
130 extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
131 extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
134 * We keep the usr, grp, and prj dquots separately so that locking will be
135 * easier to do at commit time. All transactions that we know of at this point
136 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
139 XFS_QM_TRANS_USR = 0,
144 #define XFS_QM_TRANS_MAXDQS 2
145 struct xfs_dquot_acct {
146 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
150 * Users are allowed to have a usage exceeding their softlimit for
151 * a period this long.
153 #define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
154 #define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
155 #define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
157 #define XFS_QM_BWARNLIMIT 5
158 #define XFS_QM_IWARNLIMIT 5
159 #define XFS_QM_RTBWARNLIMIT 5
161 extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
164 extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint);
165 extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
168 extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
169 extern int xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
170 uint, struct qc_dqblk *);
171 extern int xfs_qm_scall_getquota_next(struct xfs_mount *,
172 xfs_dqid_t *, uint, struct qc_dqblk *);
173 extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
175 extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);
176 extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
178 static inline struct xfs_def_quota *
179 xfs_get_defquota(struct xfs_quotainfo *qi, int type)
183 return &qi->qi_usr_default;
185 return &qi->qi_grp_default;
187 return &qi->qi_prj_default;
194 #endif /* __XFS_QM_H__ */