blob: 2fda1b2aabd964416137b337e70695f978458f66 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc. All Rights Reserved.
3 *
Nathan Scott436d7d32005-11-03 13:50:05 +11004 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public License
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * 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
Nathan Scott436d7d32005-11-03 13:50:05 +110011 * GNU Lesser General Public License for more details.
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 *
Nathan Scott436d7d32005-11-03 13:50:05 +110013 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 */
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 */
Nathan Scotta2f8e172005-11-03 13:51:23 +110031#define XQM_PRJQUOTA 2 /* system call project quota type */
32#define XQM_MAXQUOTAS 3
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
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 */
Nathan Scottde69e5f2005-11-03 13:53:34 +110040#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
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 */
50typedef 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.
128 * Provides a centralized way to get meta infomation about the quota subsystem.
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/*
135 * Some basic infomation about 'quota files'.
136 */
137typedef 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
143typedef 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 */