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1 | /* |
2 | * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc. All Rights Reserved. |
3 | * |
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 |
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 |
11 | * GNU Lesser General Public License for more details. |
12 | * |
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 |
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 */ |
31 | #define XQM_PRJQUOTA 2 /* system call project quota type */ |
32 | #define XQM_MAXQUOTAS 3 |
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 */ |
40 | #define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */ |
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; /* FS_{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 | * Accounting values. These can only be set for filesystem with |
114 | * non-transactional quotas that require quotacheck(8) in userspace. |
115 | */ |
116 | #define FS_DQ_BCOUNT (1<<12) |
117 | #define FS_DQ_ICOUNT (1<<13) |
118 | #define FS_DQ_RTBCOUNT (1<<14) |
119 | #define FS_DQ_ACCT_MASK (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT) |
120 | |
121 | /* |
122 | * Various flags related to quotactl(2). |
123 | */ |
124 | #define FS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */ |
125 | #define FS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */ |
126 | #define FS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */ |
127 | #define FS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */ |
128 | #define FS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */ |
129 | #define FS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */ |
130 | |
131 | #define FS_USER_QUOTA (1<<0) /* user quota type */ |
132 | #define FS_PROJ_QUOTA (1<<1) /* project quota type */ |
133 | #define FS_GROUP_QUOTA (1<<2) /* group quota type */ |
134 | |
135 | /* |
136 | * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system. |
137 | * Provides a centralized way to get meta information about the quota subsystem. |
138 | * eg. space taken up for user and group quotas, number of dquots currently |
139 | * incore. |
140 | */ |
141 | #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */ |
142 | |
143 | /* |
144 | * Some basic information about 'quota files'. |
145 | */ |
146 | typedef struct fs_qfilestat { |
147 | __u64 qfs_ino; /* inode number */ |
148 | __u64 qfs_nblks; /* number of BBs 512-byte-blks */ |
149 | __u32 qfs_nextents; /* number of extents */ |
150 | } fs_qfilestat_t; |
151 | |
152 | typedef struct fs_quota_stat { |
153 | __s8 qs_version; /* version number for future changes */ |
154 | __u16 qs_flags; /* FS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ |
155 | __s8 qs_pad; /* unused */ |
156 | fs_qfilestat_t qs_uquota; /* user quota storage information */ |
157 | fs_qfilestat_t qs_gquota; /* group quota storage information */ |
158 | __u32 qs_incoredqs; /* number of dquots incore */ |
159 | __s32 qs_btimelimit; /* limit for blks timer */ |
160 | __s32 qs_itimelimit; /* limit for inodes timer */ |
161 | __s32 qs_rtbtimelimit;/* limit for rt blks timer */ |
162 | __u16 qs_bwarnlimit; /* limit for num warnings */ |
163 | __u16 qs_iwarnlimit; /* limit for num warnings */ |
164 | } fs_quota_stat_t; |
165 | |
166 | #endif /* _LINUX_DQBLK_XFS_H */ |
167 |
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