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xfsprogs: remove write-only variables
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959ef981 1// SPDX-License-Identifier: LGPL-2.1
2bd0ea18 2/*
f302e9e4 3 * Copyright (c) 1995, 2001, 2004-2005 Silicon Graphics, Inc.
546bedf4 4 * All Rights Reserved.
2bd0ea18 5 */
53f8ad6d
NS
6#ifndef __XQM_H__
7#define __XQM_H__
2bd0ea18 8
f8d94331 9#include <xfs/xfs.h>
2bd0ea18
NS
10
11/*
275ae71f 12 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
2bd0ea18 13 */
275ae71f 14
e242fec8 15#define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */
20db5fec
NS
16#define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */
17#define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */
18#define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */
19#define Q_XSETQLIM XQM_CMD(4) /* set disk limits */
20#define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */
21#define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */
546bedf4 22#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */
bb92709f 23#define Q_XGETQSTATV XQM_CMD(8) /* newer version of get quota */
513fc424 24#define Q_XGETNEXTQUOTA XQM_CMD(9) /* get disk limits and usage */
2bd0ea18
NS
25
26/*
27 * fs_disk_quota structure:
28 *
29 * This contains the current quota information regarding a user/proj/group.
30 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
31 * 512 bytes.
32 */
33#define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */
34typedef struct fs_disk_quota {
35 __s8 d_version; /* version of this structure */
36 __s8 d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */
37 __u16 d_fieldmask; /* field specifier */
38 __u32 d_id; /* user, project, or group ID */
39 __u64 d_blk_hardlimit;/* absolute limit on disk blks */
40 __u64 d_blk_softlimit;/* preferred limit on disk blks */
41 __u64 d_ino_hardlimit;/* maximum # allocated inodes */
42 __u64 d_ino_softlimit;/* preferred inode limit */
43 __u64 d_bcount; /* # disk blocks owned by the user */
44 __u64 d_icount; /* # inodes owned by the user */
45 __s32 d_itimer; /* zero if within inode limits */
46 /* if not, we refuse service */
47 __s32 d_btimer; /* similar to above; for disk blocks */
feb3d9cd
CM
48 __u16 d_iwarns; /* # warnings issued wrt num inodes */
49 __u16 d_bwarns; /* # warnings issued wrt disk blocks */
2bd0ea18
NS
50 __s32 d_padding2; /* padding2 - for future use */
51 __u64 d_rtb_hardlimit;/* absolute limit on realtime blks */
52 __u64 d_rtb_softlimit;/* preferred limit on RT disk blks */
53 __u64 d_rtbcount; /* # realtime blocks owned */
54 __s32 d_rtbtimer; /* similar to above; for RT disk blks */
feb3d9cd 55 __u16 d_rtbwarns; /* # warnings issued wrt RT disk blks */
f302e9e4 56 __s16 d_padding3; /* padding3 - for future use */
2bd0ea18
NS
57 char d_padding4[8]; /* yet more padding */
58} fs_disk_quota_t;
59
60/*
61 * These fields are sent to Q_XSETQLIM to specify fields that need to change.
62 */
63#define FS_DQ_ISOFT (1<<0)
64#define FS_DQ_IHARD (1<<1)
65#define FS_DQ_BSOFT (1<<2)
feb3d9cd 66#define FS_DQ_BHARD (1<<3)
2bd0ea18
NS
67#define FS_DQ_RTBSOFT (1<<4)
68#define FS_DQ_RTBHARD (1<<5)
69#define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
70 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
71/*
72 * These timers can only be set in super user's dquot. For others, timers are
73 * automatically started and stopped. Superusers timer values set the limits
74 * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values
f302e9e4 75 * defined below are used.
2bd0ea18
NS
76 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
77 */
78#define FS_DQ_BTIMER (1<<6)
79#define FS_DQ_ITIMER (1<<7)
feb3d9cd 80#define FS_DQ_RTBTIMER (1<<8)
2bd0ea18
NS
81#define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)
82
83/*
20db5fec
NS
84 * Warning counts are set in both super user's dquot and others. For others,
85 * warnings are set/cleared by the administrators (or automatically by going
86 * below the soft limit). Superusers warning values set the warning limits
87 * for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values
f302e9e4 88 * defined below are used.
20db5fec 89 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
2bd0ea18 90 */
20db5fec
NS
91#define FS_DQ_BWARNS (1<<9)
92#define FS_DQ_IWARNS (1<<10)
93#define FS_DQ_RTBWARNS (1<<11)
94#define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS)
2bd0ea18
NS
95
96/*
97 * Various flags related to quotactl(2). Only relevant to XFS filesystems.
98 */
99#define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */
100#define XFS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */
b36eef04
NS
101#define XFS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */
102#define XFS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */
1bdd986b
NS
103#define XFS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */
104#define XFS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */
2bd0ea18
NS
105
106#define XFS_USER_QUOTA (1<<0) /* user quota type */
20db5fec 107#define XFS_PROJ_QUOTA (1<<1) /* project quota type */
2bd0ea18
NS
108#define XFS_GROUP_QUOTA (1<<2) /* group quota type */
109
110/*
111 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
ff1f79a7 112 * Provides a centralized way to get meta information about the quota subsystem.
b36eef04 113 * eg. space taken up for user and group quotas, number of dquots currently
2bd0ea18
NS
114 * incore.
115 */
116#define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */
117
118/*
ff1f79a7 119 * Some basic information about 'quota files'.
2bd0ea18
NS
120 */
121typedef struct fs_qfilestat {
122 __u64 qfs_ino; /* inode number */
123 __u64 qfs_nblks; /* number of BBs 512-byte-blks */
124 __u32 qfs_nextents; /* number of extents */
125} fs_qfilestat_t;
126
127typedef struct fs_quota_stat {
128 __s8 qs_version; /* version number for future changes */
129 __u16 qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
130 __s8 qs_pad; /* unused */
131 fs_qfilestat_t qs_uquota; /* user quota storage information */
b36eef04 132 fs_qfilestat_t qs_gquota; /* group quota storage information */
2bd0ea18 133 __u32 qs_incoredqs; /* number of dquots incore */
f302e9e4
NS
134 __s32 qs_btimelimit; /* limit for blks timer */
135 __s32 qs_itimelimit; /* limit for inodes timer */
136 __s32 qs_rtbtimelimit;/* limit for rt blks timer */
2bd0ea18
NS
137 __u16 qs_bwarnlimit; /* limit for num warnings */
138 __u16 qs_iwarnlimit; /* limit for num warnings */
139} fs_quota_stat_t;
140
bb92709f
ES
141
142#ifndef FS_QSTATV_VERSION1
143#define FS_QSTATV_VERSION1 1 /* fs_quota_statv.qs_version */
144#endif
145
146/*
147 * Some basic information about 'quota files' for Q_XGETQSTATV command
148 */
149struct fs_qfilestatv {
150 __u64 qfs_ino; /* inode number */
151 __u64 qfs_nblks; /* number of BBs 512-byte-blks */
152 __u32 qfs_nextents; /* number of extents */
153 __u32 qfs_pad; /* pad for 8-byte alignment */
154};
155
156struct fs_quota_statv {
157 __s8 qs_version; /* version for future changes */
158 __u8 qs_pad1; /* pad for 16bit alignment */
159 __u16 qs_flags; /* FS_QUOTA_.* flags */
160 __u32 qs_incoredqs; /* number of dquots incore */
161 struct fs_qfilestatv qs_uquota; /* user quota information */
162 struct fs_qfilestatv qs_gquota; /* group quota information */
163 struct fs_qfilestatv qs_pquota; /* project quota information */
164 __s32 qs_btimelimit; /* limit for blks timer */
165 __s32 qs_itimelimit; /* limit for inodes timer */
166 __s32 qs_rtbtimelimit;/* limit for rt blks timer */
167 __u16 qs_bwarnlimit; /* limit for num warnings */
168 __u16 qs_iwarnlimit; /* limit for num warnings */
169 __u64 qs_pad2[8]; /* for future proofing */
170};
171
53f8ad6d 172#endif /* __XQM_H__ */