Loading...
1/*
2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18#ifndef __XFS_QM_H__
19#define __XFS_QM_H__
20
21#include "xfs_dquot_item.h"
22#include "xfs_dquot.h"
23
24struct xfs_inode;
25
26extern struct kmem_zone *xfs_qm_dqtrxzone;
27
28/*
29 * Number of bmaps that we ask from bmapi when doing a quotacheck.
30 * We make this restriction to keep the memory usage to a minimum.
31 */
32#define XFS_DQITER_MAP_SIZE 10
33
34#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
35 !dqp->q_core.d_blk_hardlimit && \
36 !dqp->q_core.d_blk_softlimit && \
37 !dqp->q_core.d_rtb_hardlimit && \
38 !dqp->q_core.d_rtb_softlimit && \
39 !dqp->q_core.d_ino_hardlimit && \
40 !dqp->q_core.d_ino_softlimit && \
41 !dqp->q_core.d_bcount && \
42 !dqp->q_core.d_rtbcount && \
43 !dqp->q_core.d_icount)
44
45/*
46 * This defines the unit of allocation of dquots.
47 * Currently, it is just one file system block, and a 4K blk contains 30
48 * (136 * 30 = 4080) dquots. It's probably not worth trying to make
49 * this more dynamic.
50 * XXXsup However, if this number is changed, we have to make sure that we don't
51 * implicitly assume that we do allocations in chunks of a single filesystem
52 * block in the dquot/xqm code.
53 */
54#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
55
56/*
57 * Various quota information for individual filesystems.
58 * The mount structure keeps a pointer to this.
59 */
60typedef struct xfs_quotainfo {
61 struct radix_tree_root qi_uquota_tree;
62 struct radix_tree_root qi_gquota_tree;
63 struct radix_tree_root qi_pquota_tree;
64 struct mutex qi_tree_lock;
65 struct xfs_inode *qi_uquotaip; /* user quota inode */
66 struct xfs_inode *qi_gquotaip; /* group quota inode */
67 struct xfs_inode *qi_pquotaip; /* project quota inode */
68 struct list_lru qi_lru;
69 int qi_dquots;
70 time_t qi_btimelimit; /* limit for blks timer */
71 time_t qi_itimelimit; /* limit for inodes timer */
72 time_t qi_rtbtimelimit;/* limit for rt blks timer */
73 xfs_qwarncnt_t qi_bwarnlimit; /* limit for blks warnings */
74 xfs_qwarncnt_t qi_iwarnlimit; /* limit for inodes warnings */
75 xfs_qwarncnt_t qi_rtbwarnlimit;/* limit for rt blks warnings */
76 struct mutex qi_quotaofflock;/* to serialize quotaoff */
77 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
78 uint qi_dqperchunk; /* # ondisk dqs in above chunk */
79 xfs_qcnt_t qi_bhardlimit; /* default data blk hard limit */
80 xfs_qcnt_t qi_bsoftlimit; /* default data blk soft limit */
81 xfs_qcnt_t qi_ihardlimit; /* default inode count hard limit */
82 xfs_qcnt_t qi_isoftlimit; /* default inode count soft limit */
83 xfs_qcnt_t qi_rtbhardlimit;/* default realtime blk hard limit */
84 xfs_qcnt_t qi_rtbsoftlimit;/* default realtime blk soft limit */
85 struct shrinker qi_shrinker;
86} xfs_quotainfo_t;
87
88static inline struct radix_tree_root *
89xfs_dquot_tree(
90 struct xfs_quotainfo *qi,
91 int type)
92{
93 switch (type) {
94 case XFS_DQ_USER:
95 return &qi->qi_uquota_tree;
96 case XFS_DQ_GROUP:
97 return &qi->qi_gquota_tree;
98 case XFS_DQ_PROJ:
99 return &qi->qi_pquota_tree;
100 default:
101 ASSERT(0);
102 }
103 return NULL;
104}
105
106static inline struct xfs_inode *
107xfs_dq_to_quota_inode(struct xfs_dquot *dqp)
108{
109 switch (dqp->dq_flags & XFS_DQ_ALLTYPES) {
110 case XFS_DQ_USER:
111 return dqp->q_mount->m_quotainfo->qi_uquotaip;
112 case XFS_DQ_GROUP:
113 return dqp->q_mount->m_quotainfo->qi_gquotaip;
114 case XFS_DQ_PROJ:
115 return dqp->q_mount->m_quotainfo->qi_pquotaip;
116 default:
117 ASSERT(0);
118 }
119 return NULL;
120}
121
122extern void xfs_trans_mod_dquot(struct xfs_trans *,
123 struct xfs_dquot *, uint, long);
124extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
125 struct xfs_mount *, struct xfs_dquot *,
126 struct xfs_dquot *, struct xfs_dquot *,
127 long, long, uint);
128extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
129extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
130
131/*
132 * We keep the usr, grp, and prj dquots separately so that locking will be
133 * easier to do at commit time. All transactions that we know of at this point
134 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
135 */
136enum {
137 XFS_QM_TRANS_USR = 0,
138 XFS_QM_TRANS_GRP,
139 XFS_QM_TRANS_PRJ,
140 XFS_QM_TRANS_DQTYPES
141};
142#define XFS_QM_TRANS_MAXDQS 2
143struct xfs_dquot_acct {
144 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
145};
146
147/*
148 * Users are allowed to have a usage exceeding their softlimit for
149 * a period this long.
150 */
151#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
152#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
153#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
154
155#define XFS_QM_BWARNLIMIT 5
156#define XFS_QM_IWARNLIMIT 5
157#define XFS_QM_RTBWARNLIMIT 5
158
159extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
160extern int xfs_qm_quotacheck(struct xfs_mount *);
161extern int xfs_qm_write_sb_changes(struct xfs_mount *, __int64_t);
162
163/* dquot stuff */
164extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint);
165extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
166
167/* quota ops */
168extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
169extern int xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
170 uint, struct fs_disk_quota *);
171extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
172 struct fs_disk_quota *);
173extern int xfs_qm_scall_getqstat(struct xfs_mount *,
174 struct fs_quota_stat *);
175extern int xfs_qm_scall_getqstatv(struct xfs_mount *,
176 struct fs_quota_statv *);
177extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);
178extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
179
180#endif /* __XFS_QM_H__ */
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#ifndef __XFS_QM_H__
7#define __XFS_QM_H__
8
9#include "xfs_dquot_item.h"
10#include "xfs_dquot.h"
11
12struct xfs_inode;
13
14extern struct kmem_cache *xfs_dqtrx_cache;
15
16/*
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.
19 */
20#define XFS_DQITER_MAP_SIZE 10
21
22#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
23 !dqp->q_blk.hardlimit && \
24 !dqp->q_blk.softlimit && \
25 !dqp->q_rtb.hardlimit && \
26 !dqp->q_rtb.softlimit && \
27 !dqp->q_ino.hardlimit && \
28 !dqp->q_ino.softlimit && \
29 !dqp->q_blk.count && \
30 !dqp->q_rtb.count && \
31 !dqp->q_ino.count)
32
33struct xfs_quota_limits {
34 xfs_qcnt_t hard; /* default hard limit */
35 xfs_qcnt_t soft; /* default soft limit */
36 time64_t time; /* limit for timers */
37};
38
39/* Defaults for each quota type: time limits, warn limits, usage limits */
40struct xfs_def_quota {
41 struct xfs_quota_limits blk;
42 struct xfs_quota_limits ino;
43 struct xfs_quota_limits rtb;
44};
45
46/*
47 * Various quota information for individual filesystems.
48 * The mount structure keeps a pointer to this.
49 */
50struct xfs_quotainfo {
51 struct radix_tree_root qi_uquota_tree;
52 struct radix_tree_root qi_gquota_tree;
53 struct radix_tree_root qi_pquota_tree;
54 struct mutex qi_tree_lock;
55 struct xfs_inode *qi_uquotaip; /* user quota inode */
56 struct xfs_inode *qi_gquotaip; /* group quota inode */
57 struct xfs_inode *qi_pquotaip; /* project quota inode */
58 struct list_lru qi_lru;
59 int qi_dquots;
60 struct mutex qi_quotaofflock;/* to serialize quotaoff */
61 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
62 uint qi_dqperchunk; /* # ondisk dq in above chunk */
63 struct xfs_def_quota qi_usr_default;
64 struct xfs_def_quota qi_grp_default;
65 struct xfs_def_quota qi_prj_default;
66 struct shrinker *qi_shrinker;
67
68 /* Minimum and maximum quota expiration timestamp values. */
69 time64_t qi_expiry_min;
70 time64_t qi_expiry_max;
71};
72
73static inline struct radix_tree_root *
74xfs_dquot_tree(
75 struct xfs_quotainfo *qi,
76 xfs_dqtype_t type)
77{
78 switch (type) {
79 case XFS_DQTYPE_USER:
80 return &qi->qi_uquota_tree;
81 case XFS_DQTYPE_GROUP:
82 return &qi->qi_gquota_tree;
83 case XFS_DQTYPE_PROJ:
84 return &qi->qi_pquota_tree;
85 default:
86 ASSERT(0);
87 }
88 return NULL;
89}
90
91static inline struct xfs_inode *
92xfs_quota_inode(struct xfs_mount *mp, xfs_dqtype_t type)
93{
94 switch (type) {
95 case XFS_DQTYPE_USER:
96 return mp->m_quotainfo->qi_uquotaip;
97 case XFS_DQTYPE_GROUP:
98 return mp->m_quotainfo->qi_gquotaip;
99 case XFS_DQTYPE_PROJ:
100 return mp->m_quotainfo->qi_pquotaip;
101 default:
102 ASSERT(0);
103 }
104 return NULL;
105}
106
107extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp,
108 uint field, int64_t delta);
109extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
110extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
111
112/*
113 * We keep the usr, grp, and prj dquots separately so that locking will be
114 * easier to do at commit time. All transactions that we know of at this point
115 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
116 */
117enum {
118 XFS_QM_TRANS_USR = 0,
119 XFS_QM_TRANS_GRP,
120 XFS_QM_TRANS_PRJ,
121 XFS_QM_TRANS_DQTYPES
122};
123#define XFS_QM_TRANS_MAXDQS 2
124struct xfs_dquot_acct {
125 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
126};
127
128/*
129 * Users are allowed to have a usage exceeding their softlimit for
130 * a period this long.
131 */
132#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
133#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
134#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
135
136extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
137
138/* quota ops */
139extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
140extern int xfs_qm_scall_getquota(struct xfs_mount *mp,
141 xfs_dqid_t id,
142 xfs_dqtype_t type,
143 struct qc_dqblk *dst);
144extern int xfs_qm_scall_getquota_next(struct xfs_mount *mp,
145 xfs_dqid_t *id,
146 xfs_dqtype_t type,
147 struct qc_dqblk *dst);
148extern int xfs_qm_scall_setqlim(struct xfs_mount *mp,
149 xfs_dqid_t id,
150 xfs_dqtype_t type,
151 struct qc_dqblk *newlim);
152extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);
153extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
154
155static inline struct xfs_def_quota *
156xfs_get_defquota(struct xfs_quotainfo *qi, xfs_dqtype_t type)
157{
158 switch (type) {
159 case XFS_DQTYPE_USER:
160 return &qi->qi_usr_default;
161 case XFS_DQTYPE_GROUP:
162 return &qi->qi_grp_default;
163 case XFS_DQTYPE_PROJ:
164 return &qi->qi_prj_default;
165 default:
166 ASSERT(0);
167 return NULL;
168 }
169}
170
171#endif /* __XFS_QM_H__ */