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1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
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. | |
1da177e4 | 13 | * |
4ce3121f NS |
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 | |
1da177e4 LT |
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" | |
1da177e4 | 24 | |
1da177e4 LT |
25 | struct xfs_inode; |
26 | ||
a05931ce | 27 | extern struct kmem_zone *xfs_qm_dqtrxzone; |
1da177e4 | 28 | |
1da177e4 LT |
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 | |
1da177e4 | 39 | |
1da177e4 LT |
40 | /* |
41 | * Various quota information for individual filesystems. | |
42 | * The mount structure keeps a pointer to this. | |
43 | */ | |
44 | typedef struct xfs_quotainfo { | |
9f920f11 CH |
45 | struct radix_tree_root qi_uquota_tree; |
46 | struct radix_tree_root qi_gquota_tree; | |
47 | struct mutex qi_tree_lock; | |
1da177e4 LT |
48 | xfs_inode_t *qi_uquotaip; /* user quota inode */ |
49 | xfs_inode_t *qi_gquotaip; /* group quota inode */ | |
f8739c3c CH |
50 | struct list_head qi_lru_list; |
51 | struct mutex qi_lru_lock; | |
52 | int qi_lru_count; | |
3a25404b | 53 | int qi_dquots; |
1da177e4 LT |
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 */ | |
06d10dd9 NS |
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 */ | |
a0b0b8a5 | 60 | struct mutex qi_quotaofflock;/* to serialize quotaoff */ |
1da177e4 LT |
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 */ | |
f8739c3c | 69 | struct shrinker qi_shrinker; |
1da177e4 LT |
70 | } xfs_quotainfo_t; |
71 | ||
329e0875 CS |
72 | static inline struct radix_tree_root * |
73 | xfs_dquot_tree( | |
74 | struct xfs_quotainfo *qi, | |
75 | int type) | |
76 | { | |
77 | switch (type) { | |
78 | case XFS_DQ_USER: | |
79 | return &qi->qi_uquota_tree; | |
80 | case XFS_DQ_GROUP: | |
81 | case XFS_DQ_PROJ: | |
82 | return &qi->qi_gquota_tree; | |
83 | default: | |
84 | ASSERT(0); | |
85 | } | |
86 | return NULL; | |
87 | } | |
995961c4 CS |
88 | |
89 | static inline struct xfs_inode * | |
90 | xfs_dq_to_quota_inode(struct xfs_dquot *dqp) | |
91 | { | |
92 | switch (dqp->dq_flags & XFS_DQ_ALLTYPES) { | |
93 | case XFS_DQ_USER: | |
94 | return dqp->q_mount->m_quotainfo->qi_uquotaip; | |
95 | case XFS_DQ_GROUP: | |
96 | case XFS_DQ_PROJ: | |
97 | return dqp->q_mount->m_quotainfo->qi_gquotaip; | |
98 | default: | |
99 | ASSERT(0); | |
100 | } | |
101 | return NULL; | |
102 | } | |
103 | ||
3fe58f30 CH |
104 | extern int xfs_qm_calc_dquots_per_chunk(struct xfs_mount *mp, |
105 | unsigned int nbblks); | |
1da177e4 LT |
106 | extern void xfs_trans_mod_dquot(xfs_trans_t *, xfs_dquot_t *, uint, long); |
107 | extern int xfs_trans_reserve_quota_bydquots(xfs_trans_t *, xfs_mount_t *, | |
108 | xfs_dquot_t *, xfs_dquot_t *, long, long, uint); | |
109 | extern void xfs_trans_dqjoin(xfs_trans_t *, xfs_dquot_t *); | |
110 | extern void xfs_trans_log_dquot(xfs_trans_t *, xfs_dquot_t *); | |
111 | ||
112 | /* | |
113 | * We keep the usr and grp dquots separately so that locking will be easier | |
114 | * 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 | */ | |
117 | #define XFS_QM_TRANS_MAXDQS 2 | |
118 | typedef struct xfs_dquot_acct { | |
119 | xfs_dqtrx_t dqa_usrdquots[XFS_QM_TRANS_MAXDQS]; | |
120 | xfs_dqtrx_t dqa_grpdquots[XFS_QM_TRANS_MAXDQS]; | |
121 | } xfs_dquot_acct_t; | |
122 | ||
123 | /* | |
124 | * Users are allowed to have a usage exceeding their softlimit for | |
125 | * a period this long. | |
126 | */ | |
127 | #define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */ | |
128 | #define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */ | |
129 | #define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */ | |
130 | ||
131 | #define XFS_QM_BWARNLIMIT 5 | |
132 | #define XFS_QM_IWARNLIMIT 5 | |
06d10dd9 | 133 | #define XFS_QM_RTBWARNLIMIT 5 |
1da177e4 | 134 | |
1da177e4 | 135 | extern void xfs_qm_destroy_quotainfo(xfs_mount_t *); |
1da177e4 | 136 | extern int xfs_qm_quotacheck(xfs_mount_t *); |
1da177e4 | 137 | extern int xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t); |
1da177e4 LT |
138 | |
139 | /* dquot stuff */ | |
b84a3a96 | 140 | extern void xfs_qm_dqpurge_all(xfs_mount_t *, uint); |
1da177e4 LT |
141 | extern void xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint); |
142 | ||
fcafb71b CH |
143 | /* quota ops */ |
144 | extern int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint); | |
145 | extern int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint, | |
146 | fs_disk_quota_t *); | |
b1366451 | 147 | extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint, |
fcafb71b CH |
148 | fs_disk_quota_t *); |
149 | extern int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *); | |
150 | extern int xfs_qm_scall_quotaon(xfs_mount_t *, uint); | |
151 | extern int xfs_qm_scall_quotaoff(xfs_mount_t *, uint); | |
152 | ||
1da177e4 | 153 | #endif /* __XFS_QM_H__ */ |