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git.ipfire.org Git - thirdparty/xfsprogs-dev.git/blob - include/xqm.h
2 * Copyright (c) 1995, 2001, 2004-2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public License
7 * as published by the Free Software Foundation.
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 Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser 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
24 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
27 #define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */
28 #define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */
29 #define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */
30 #define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */
31 #define Q_XSETQLIM XQM_CMD(4) /* set disk limits */
32 #define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */
33 #define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */
34 #define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */
35 #define Q_XGETNEXTQUOTA XQM_CMD(9) /* get disk limits and usage */
38 * fs_disk_quota structure:
40 * This contains the current quota information regarding a user/proj/group.
41 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
44 #define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */
45 typedef struct fs_disk_quota
{
46 __s8 d_version
; /* version of this structure */
47 __s8 d_flags
; /* XFS_{USER,PROJ,GROUP}_QUOTA */
48 __u16 d_fieldmask
; /* field specifier */
49 __u32 d_id
; /* user, project, or group ID */
50 __u64 d_blk_hardlimit
;/* absolute limit on disk blks */
51 __u64 d_blk_softlimit
;/* preferred limit on disk blks */
52 __u64 d_ino_hardlimit
;/* maximum # allocated inodes */
53 __u64 d_ino_softlimit
;/* preferred inode limit */
54 __u64 d_bcount
; /* # disk blocks owned by the user */
55 __u64 d_icount
; /* # inodes owned by the user */
56 __s32 d_itimer
; /* zero if within inode limits */
57 /* if not, we refuse service */
58 __s32 d_btimer
; /* similar to above; for disk blocks */
59 __u16 d_iwarns
; /* # warnings issued wrt num inodes */
60 __u16 d_bwarns
; /* # warnings issued wrt disk blocks */
61 __s32 d_padding2
; /* padding2 - for future use */
62 __u64 d_rtb_hardlimit
;/* absolute limit on realtime blks */
63 __u64 d_rtb_softlimit
;/* preferred limit on RT disk blks */
64 __u64 d_rtbcount
; /* # realtime blocks owned */
65 __s32 d_rtbtimer
; /* similar to above; for RT disk blks */
66 __u16 d_rtbwarns
; /* # warnings issued wrt RT disk blks */
67 __s16 d_padding3
; /* padding3 - for future use */
68 char d_padding4
[8]; /* yet more padding */
72 * These fields are sent to Q_XSETQLIM to specify fields that need to change.
74 #define FS_DQ_ISOFT (1<<0)
75 #define FS_DQ_IHARD (1<<1)
76 #define FS_DQ_BSOFT (1<<2)
77 #define FS_DQ_BHARD (1<<3)
78 #define FS_DQ_RTBSOFT (1<<4)
79 #define FS_DQ_RTBHARD (1<<5)
80 #define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
81 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
83 * These timers can only be set in super user's dquot. For others, timers are
84 * automatically started and stopped. Superusers timer values set the limits
85 * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values
86 * defined below are used.
87 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
89 #define FS_DQ_BTIMER (1<<6)
90 #define FS_DQ_ITIMER (1<<7)
91 #define FS_DQ_RTBTIMER (1<<8)
92 #define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)
95 * Warning counts are set in both super user's dquot and others. For others,
96 * warnings are set/cleared by the administrators (or automatically by going
97 * below the soft limit). Superusers warning values set the warning limits
98 * for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values
99 * defined below are used.
100 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
102 #define FS_DQ_BWARNS (1<<9)
103 #define FS_DQ_IWARNS (1<<10)
104 #define FS_DQ_RTBWARNS (1<<11)
105 #define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS)
108 * Various flags related to quotactl(2). Only relevant to XFS filesystems.
110 #define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */
111 #define XFS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */
112 #define XFS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */
113 #define XFS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */
114 #define XFS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */
115 #define XFS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */
117 #define XFS_USER_QUOTA (1<<0) /* user quota type */
118 #define XFS_PROJ_QUOTA (1<<1) /* project quota type */
119 #define XFS_GROUP_QUOTA (1<<2) /* group quota type */
122 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
123 * Provides a centralized way to get meta information about the quota subsystem.
124 * eg. space taken up for user and group quotas, number of dquots currently
127 #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */
130 * Some basic information about 'quota files'.
132 typedef struct fs_qfilestat
{
133 __u64 qfs_ino
; /* inode number */
134 __u64 qfs_nblks
; /* number of BBs 512-byte-blks */
135 __u32 qfs_nextents
; /* number of extents */
138 typedef struct fs_quota_stat
{
139 __s8 qs_version
; /* version number for future changes */
140 __u16 qs_flags
; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
141 __s8 qs_pad
; /* unused */
142 fs_qfilestat_t qs_uquota
; /* user quota storage information */
143 fs_qfilestat_t qs_gquota
; /* group quota storage information */
144 __u32 qs_incoredqs
; /* number of dquots incore */
145 __s32 qs_btimelimit
; /* limit for blks timer */
146 __s32 qs_itimelimit
; /* limit for inodes timer */
147 __s32 qs_rtbtimelimit
;/* limit for rt blks timer */
148 __u16 qs_bwarnlimit
; /* limit for num warnings */
149 __u16 qs_iwarnlimit
; /* limit for num warnings */
152 #endif /* __XQM_H__ */