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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#include "xfs_quota_priv.h"
24
25struct xfs_inode;
26
27extern struct kmem_zone *xfs_qm_dqtrxzone;
28
29/*
30 * This defines the unit of allocation of dquots.
31 * Currently, it is just one file system block, and a 4K blk contains 30
32 * (136 * 30 = 4080) dquots. It's probably not worth trying to make
33 * this more dynamic.
34 * XXXsup However, if this number is changed, we have to make sure that we don't
35 * implicitly assume that we do allocations in chunks of a single filesystem
36 * block in the dquot/xqm code.
37 */
38#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
39
40/*
41 * Various quota information for individual filesystems.
42 * The mount structure keeps a pointer to this.
43 */
44typedef struct xfs_quotainfo {
45 struct radix_tree_root qi_uquota_tree;
46 struct radix_tree_root qi_gquota_tree;
47 struct mutex qi_tree_lock;
48 xfs_inode_t *qi_uquotaip; /* user quota inode */
49 xfs_inode_t *qi_gquotaip; /* group quota inode */
50 struct list_head qi_lru_list;
51 struct mutex qi_lru_lock;
52 int qi_lru_count;
53 int qi_dquots;
54 time_t qi_btimelimit; /* limit for blks timer */
55 time_t qi_itimelimit; /* limit for inodes timer */
56 time_t qi_rtbtimelimit;/* limit for rt blks timer */
57 xfs_qwarncnt_t qi_bwarnlimit; /* limit for blks warnings */
58 xfs_qwarncnt_t qi_iwarnlimit; /* limit for inodes warnings */
59 xfs_qwarncnt_t qi_rtbwarnlimit;/* limit for rt blks warnings */
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 dqs in above chunk */
63 xfs_qcnt_t qi_bhardlimit; /* default data blk hard limit */
64 xfs_qcnt_t qi_bsoftlimit; /* default data blk soft limit */
65 xfs_qcnt_t qi_ihardlimit; /* default inode count hard limit */
66 xfs_qcnt_t qi_isoftlimit; /* default inode count soft limit */
67 xfs_qcnt_t qi_rtbhardlimit;/* default realtime blk hard limit */
68 xfs_qcnt_t qi_rtbsoftlimit;/* default realtime blk soft limit */
69 struct shrinker qi_shrinker;
70} xfs_quotainfo_t;
71
72#define XFS_DQUOT_TREE(qi, type) \
73 ((type & XFS_DQ_USER) ? \
74 &((qi)->qi_uquota_tree) : \
75 &((qi)->qi_gquota_tree))
76
77
78extern void xfs_trans_mod_dquot(xfs_trans_t *, xfs_dquot_t *, uint, long);
79extern int xfs_trans_reserve_quota_bydquots(xfs_trans_t *, xfs_mount_t *,
80 xfs_dquot_t *, xfs_dquot_t *, long, long, uint);
81extern void xfs_trans_dqjoin(xfs_trans_t *, xfs_dquot_t *);
82extern void xfs_trans_log_dquot(xfs_trans_t *, xfs_dquot_t *);
83
84/*
85 * We keep the usr and grp dquots separately so that locking will be easier
86 * to do at commit time. All transactions that we know of at this point
87 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
88 */
89#define XFS_QM_TRANS_MAXDQS 2
90typedef struct xfs_dquot_acct {
91 xfs_dqtrx_t dqa_usrdquots[XFS_QM_TRANS_MAXDQS];
92 xfs_dqtrx_t dqa_grpdquots[XFS_QM_TRANS_MAXDQS];
93} xfs_dquot_acct_t;
94
95/*
96 * Users are allowed to have a usage exceeding their softlimit for
97 * a period this long.
98 */
99#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
100#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
101#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
102
103#define XFS_QM_BWARNLIMIT 5
104#define XFS_QM_IWARNLIMIT 5
105#define XFS_QM_RTBWARNLIMIT 5
106
107extern void xfs_qm_destroy_quotainfo(xfs_mount_t *);
108extern int xfs_qm_quotacheck(xfs_mount_t *);
109extern int xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t);
110
111/* dquot stuff */
112extern void xfs_qm_dqpurge_all(xfs_mount_t *, uint);
113extern void xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
114
115/* quota ops */
116extern int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
117extern int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
118 fs_disk_quota_t *);
119extern int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
120 fs_disk_quota_t *);
121extern int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
122extern int xfs_qm_scall_quotaon(xfs_mount_t *, uint);
123extern int xfs_qm_scall_quotaoff(xfs_mount_t *, uint);
124
125#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__ */