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1 | /* |
2 | * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc. All Rights Reserved. | |
3 | * | |
436d7d30 NS |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Lesser General Public License | |
1da177e4 LT |
6 | * as published by the Free Software Foundation. |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
436d7d30 | 11 | * GNU Lesser General Public License for more details. |
1da177e4 | 12 | * |
436d7d30 NS |
13 | * You should have received a copy of the GNU Lesset General Public License |
14 | * along with this program; if not, write to the Free Software Foundation, | |
15 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 LT |
16 | */ |
17 | #ifndef _LINUX_DQBLK_XFS_H | |
18 | #define _LINUX_DQBLK_XFS_H | |
19 | ||
20 | #include <linux/types.h> | |
21 | ||
22 | /* | |
23 | * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM). | |
24 | */ | |
25 | ||
26 | #define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */ | |
27 | #define XQM_COMMAND(x) (((x) & (0xff<<8)) == ('X'<<8)) /* test if for XFS */ | |
28 | ||
29 | #define XQM_USRQUOTA 0 /* system call user quota type */ | |
30 | #define XQM_GRPQUOTA 1 /* system call group quota type */ | |
a2f8e178 NS |
31 | #define XQM_PRJQUOTA 2 /* system call project quota type */ |
32 | #define XQM_MAXQUOTAS 3 | |
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33 | |
34 | #define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */ | |
35 | #define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */ | |
36 | #define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */ | |
37 | #define Q_XSETQLIM XQM_CMD(4) /* set disk limits */ | |
38 | #define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */ | |
39 | #define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */ | |
de69e5f4 | 40 | #define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */ |
1da177e4 LT |
41 | |
42 | /* | |
43 | * fs_disk_quota structure: | |
44 | * | |
45 | * This contains the current quota information regarding a user/proj/group. | |
46 | * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of | |
47 | * 512 bytes. | |
48 | */ | |
49 | #define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */ | |
50 | typedef struct fs_disk_quota { | |
51 | __s8 d_version; /* version of this structure */ | |
52 | __s8 d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */ | |
53 | __u16 d_fieldmask; /* field specifier */ | |
54 | __u32 d_id; /* user, project, or group ID */ | |
55 | __u64 d_blk_hardlimit;/* absolute limit on disk blks */ | |
56 | __u64 d_blk_softlimit;/* preferred limit on disk blks */ | |
57 | __u64 d_ino_hardlimit;/* maximum # allocated inodes */ | |
58 | __u64 d_ino_softlimit;/* preferred inode limit */ | |
59 | __u64 d_bcount; /* # disk blocks owned by the user */ | |
60 | __u64 d_icount; /* # inodes owned by the user */ | |
61 | __s32 d_itimer; /* zero if within inode limits */ | |
62 | /* if not, we refuse service */ | |
63 | __s32 d_btimer; /* similar to above; for disk blocks */ | |
64 | __u16 d_iwarns; /* # warnings issued wrt num inodes */ | |
65 | __u16 d_bwarns; /* # warnings issued wrt disk blocks */ | |
66 | __s32 d_padding2; /* padding2 - for future use */ | |
67 | __u64 d_rtb_hardlimit;/* absolute limit on realtime blks */ | |
68 | __u64 d_rtb_softlimit;/* preferred limit on RT disk blks */ | |
69 | __u64 d_rtbcount; /* # realtime blocks owned */ | |
70 | __s32 d_rtbtimer; /* similar to above; for RT disk blks */ | |
71 | __u16 d_rtbwarns; /* # warnings issued wrt RT disk blks */ | |
72 | __s16 d_padding3; /* padding3 - for future use */ | |
73 | char d_padding4[8]; /* yet more padding */ | |
74 | } fs_disk_quota_t; | |
75 | ||
76 | /* | |
77 | * These fields are sent to Q_XSETQLIM to specify fields that need to change. | |
78 | */ | |
79 | #define FS_DQ_ISOFT (1<<0) | |
80 | #define FS_DQ_IHARD (1<<1) | |
81 | #define FS_DQ_BSOFT (1<<2) | |
82 | #define FS_DQ_BHARD (1<<3) | |
83 | #define FS_DQ_RTBSOFT (1<<4) | |
84 | #define FS_DQ_RTBHARD (1<<5) | |
85 | #define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \ | |
86 | FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD) | |
87 | /* | |
88 | * These timers can only be set in super user's dquot. For others, timers are | |
89 | * automatically started and stopped. Superusers timer values set the limits | |
90 | * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values | |
91 | * defined below are used. | |
92 | * These values also apply only to the d_fieldmask field for Q_XSETQLIM. | |
93 | */ | |
94 | #define FS_DQ_BTIMER (1<<6) | |
95 | #define FS_DQ_ITIMER (1<<7) | |
96 | #define FS_DQ_RTBTIMER (1<<8) | |
97 | #define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER) | |
98 | ||
99 | /* | |
100 | * Warning counts are set in both super user's dquot and others. For others, | |
101 | * warnings are set/cleared by the administrators (or automatically by going | |
102 | * below the soft limit). Superusers warning values set the warning limits | |
103 | * for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values | |
104 | * defined below are used. | |
105 | * These values also apply only to the d_fieldmask field for Q_XSETQLIM. | |
106 | */ | |
107 | #define FS_DQ_BWARNS (1<<9) | |
108 | #define FS_DQ_IWARNS (1<<10) | |
109 | #define FS_DQ_RTBWARNS (1<<11) | |
110 | #define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS) | |
111 | ||
112 | /* | |
113 | * Various flags related to quotactl(2). Only relevant to XFS filesystems. | |
114 | */ | |
115 | #define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */ | |
116 | #define XFS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */ | |
117 | #define XFS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */ | |
118 | #define XFS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */ | |
119 | #define XFS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */ | |
120 | #define XFS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */ | |
121 | ||
122 | #define XFS_USER_QUOTA (1<<0) /* user quota type */ | |
123 | #define XFS_PROJ_QUOTA (1<<1) /* project quota type */ | |
124 | #define XFS_GROUP_QUOTA (1<<2) /* group quota type */ | |
125 | ||
126 | /* | |
127 | * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system. | |
47bdd718 | 128 | * Provides a centralized way to get meta information about the quota subsystem. |
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129 | * eg. space taken up for user and group quotas, number of dquots currently |
130 | * incore. | |
131 | */ | |
132 | #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */ | |
133 | ||
134 | /* | |
47bdd718 | 135 | * Some basic information about 'quota files'. |
1da177e4 LT |
136 | */ |
137 | typedef struct fs_qfilestat { | |
138 | __u64 qfs_ino; /* inode number */ | |
139 | __u64 qfs_nblks; /* number of BBs 512-byte-blks */ | |
140 | __u32 qfs_nextents; /* number of extents */ | |
141 | } fs_qfilestat_t; | |
142 | ||
143 | typedef struct fs_quota_stat { | |
144 | __s8 qs_version; /* version number for future changes */ | |
145 | __u16 qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ | |
146 | __s8 qs_pad; /* unused */ | |
147 | fs_qfilestat_t qs_uquota; /* user quota storage information */ | |
148 | fs_qfilestat_t qs_gquota; /* group quota storage information */ | |
149 | __u32 qs_incoredqs; /* number of dquots incore */ | |
150 | __s32 qs_btimelimit; /* limit for blks timer */ | |
151 | __s32 qs_itimelimit; /* limit for inodes timer */ | |
152 | __s32 qs_rtbtimelimit;/* limit for rt blks timer */ | |
153 | __u16 qs_bwarnlimit; /* limit for num warnings */ | |
154 | __u16 qs_iwarnlimit; /* limit for num warnings */ | |
155 | } fs_quota_stat_t; | |
156 | ||
157 | #endif /* _LINUX_DQBLK_XFS_H */ |