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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/*
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
56struct xfs_def_quota {
57 xfs_qcnt_t bhardlimit; /* default data blk hard limit */
58 xfs_qcnt_t bsoftlimit; /* default data blk soft limit */
59 xfs_qcnt_t ihardlimit; /* default inode count hard limit */
60 xfs_qcnt_t isoftlimit; /* default inode count soft limit */
61 xfs_qcnt_t rtbhardlimit; /* default realtime blk hard limit */
62 xfs_qcnt_t rtbsoftlimit; /* default realtime blk soft limit */
63};
64
65/*
66 * Various quota information for individual filesystems.
67 * The mount structure keeps a pointer to this.
68 */
69typedef struct xfs_quotainfo {
70 struct radix_tree_root qi_uquota_tree;
71 struct radix_tree_root qi_gquota_tree;
72 struct radix_tree_root qi_pquota_tree;
73 struct mutex qi_tree_lock;
74 struct xfs_inode *qi_uquotaip; /* user quota inode */
75 struct xfs_inode *qi_gquotaip; /* group quota inode */
76 struct xfs_inode *qi_pquotaip; /* project quota inode */
77 struct list_lru qi_lru;
78 int qi_dquots;
79 time_t qi_btimelimit; /* limit for blks timer */
80 time_t qi_itimelimit; /* limit for inodes timer */
81 time_t qi_rtbtimelimit;/* limit for rt blks timer */
82 xfs_qwarncnt_t qi_bwarnlimit; /* limit for blks warnings */
83 xfs_qwarncnt_t qi_iwarnlimit; /* limit for inodes warnings */
84 xfs_qwarncnt_t qi_rtbwarnlimit;/* limit for rt blks warnings */
85 struct mutex qi_quotaofflock;/* to serialize quotaoff */
86 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
87 uint qi_dqperchunk; /* # ondisk dqs in above chunk */
88 struct xfs_def_quota qi_usr_default;
89 struct xfs_def_quota qi_grp_default;
90 struct xfs_def_quota qi_prj_default;
91 struct shrinker qi_shrinker;
92} xfs_quotainfo_t;
93
94static inline struct radix_tree_root *
95xfs_dquot_tree(
96 struct xfs_quotainfo *qi,
97 int type)
98{
99 switch (type) {
100 case XFS_DQ_USER:
101 return &qi->qi_uquota_tree;
102 case XFS_DQ_GROUP:
103 return &qi->qi_gquota_tree;
104 case XFS_DQ_PROJ:
105 return &qi->qi_pquota_tree;
106 default:
107 ASSERT(0);
108 }
109 return NULL;
110}
111
112static inline struct xfs_inode *
113xfs_quota_inode(xfs_mount_t *mp, uint dq_flags)
114{
115 switch (dq_flags & XFS_DQ_ALLTYPES) {
116 case XFS_DQ_USER:
117 return mp->m_quotainfo->qi_uquotaip;
118 case XFS_DQ_GROUP:
119 return mp->m_quotainfo->qi_gquotaip;
120 case XFS_DQ_PROJ:
121 return mp->m_quotainfo->qi_pquotaip;
122 default:
123 ASSERT(0);
124 }
125 return NULL;
126}
127
128extern void xfs_trans_mod_dquot(struct xfs_trans *,
129 struct xfs_dquot *, uint, long);
130extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
131 struct xfs_mount *, struct xfs_dquot *,
132 struct xfs_dquot *, struct xfs_dquot *,
133 long, long, uint);
134extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
135extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
136
137/*
138 * We keep the usr, grp, and prj dquots separately so that locking will be
139 * easier to do at commit time. All transactions that we know of at this point
140 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
141 */
142enum {
143 XFS_QM_TRANS_USR = 0,
144 XFS_QM_TRANS_GRP,
145 XFS_QM_TRANS_PRJ,
146 XFS_QM_TRANS_DQTYPES
147};
148#define XFS_QM_TRANS_MAXDQS 2
149struct xfs_dquot_acct {
150 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
151};
152
153/*
154 * Users are allowed to have a usage exceeding their softlimit for
155 * a period this long.
156 */
157#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
158#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
159#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
160
161#define XFS_QM_BWARNLIMIT 5
162#define XFS_QM_IWARNLIMIT 5
163#define XFS_QM_RTBWARNLIMIT 5
164
165extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
166
167/* dquot stuff */
168extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint);
169extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
170
171/* quota ops */
172extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
173extern int xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t *,
174 uint, struct qc_dqblk *, uint);
175extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
176 struct qc_dqblk *);
177extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);
178extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
179
180static inline struct xfs_def_quota *
181xfs_get_defquota(struct xfs_dquot *dqp, struct xfs_quotainfo *qi)
182{
183 struct xfs_def_quota *defq;
184
185 if (XFS_QM_ISUDQ(dqp))
186 defq = &qi->qi_usr_default;
187 else if (XFS_QM_ISGDQ(dqp))
188 defq = &qi->qi_grp_default;
189 else {
190 ASSERT(XFS_QM_ISPDQ(dqp));
191 defq = &qi->qi_prj_default;
192 }
193 return defq;
194}
195
196#endif /* __XFS_QM_H__ */