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 modify it 5 * under the terms of version 2.1 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 General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write to the Free Software 15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 16 * USA 17 * 18 * Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane, 19 * Mountain View, CA 94043, USA, or: http://www.sgi.com 20 */ 21 #ifndef _LINUX_DQBLK_XFS_H 22 #define _LINUX_DQBLK_XFS_H 23 24 #include <linux/types.h> 25 26 /* 27 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM). 28 */ 29 30 #define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */ 31 #define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */ 32 #define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */ 33 #define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */ 34 #define Q_XSETQLIM XQM_CMD(4) /* set disk limits */ 35 #define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */ 36 #define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */ 37 38 /* 39 * fs_disk_quota structure: 40 * 41 * This contains the current quota information regarding a user/proj/group. 42 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of 43 * 512 bytes. 44 */ 45 #define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */ 46 typedef struct fs_disk_quota { 47 __s8 d_version; /* version of this structure */ 48 __s8 d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */ 49 __u16 d_fieldmask; /* field specifier */ 50 __u32 d_id; /* user, project, or group ID */ 51 __u64 d_blk_hardlimit;/* absolute limit on disk blks */ 52 __u64 d_blk_softlimit;/* preferred limit on disk blks */ 53 __u64 d_ino_hardlimit;/* maximum # allocated inodes */ 54 __u64 d_ino_softlimit;/* preferred inode limit */ 55 __u64 d_bcount; /* # disk blocks owned by the user */ 56 __u64 d_icount; /* # inodes owned by the user */ 57 __s32 d_itimer; /* zero if within inode limits */ 58 /* if not, we refuse service */ 59 __s32 d_btimer; /* similar to above; for disk blocks */ 60 __u16 d_iwarns; /* # warnings issued wrt num inodes */ 61 __u16 d_bwarns; /* # warnings issued wrt disk blocks */ 62 __s32 d_padding2; /* padding2 - for future use */ 63 __u64 d_rtb_hardlimit;/* absolute limit on realtime blks */ 64 __u64 d_rtb_softlimit;/* preferred limit on RT disk blks */ 65 __u64 d_rtbcount; /* # realtime blocks owned */ 66 __s32 d_rtbtimer; /* similar to above; for RT disk blks */ 67 __u16 d_rtbwarns; /* # warnings issued wrt RT disk blks */ 68 __s16 d_padding3; /* padding3 - for future use */ 69 char d_padding4[8]; /* yet more padding */ 70 } fs_disk_quota_t; 71 72 /* 73 * These fields are sent to Q_XSETQLIM to specify fields that need to change. 74 */ 75 #define FS_DQ_ISOFT (1<<0) 76 #define FS_DQ_IHARD (1<<1) 77 #define FS_DQ_BSOFT (1<<2) 78 #define FS_DQ_BHARD (1<<3) 79 #define FS_DQ_RTBSOFT (1<<4) 80 #define FS_DQ_RTBHARD (1<<5) 81 #define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \ 82 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD) 83 /* 84 * These timers can only be set in super user's dquot. For others, timers are 85 * automatically started and stopped. Superusers timer values set the limits 86 * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values 87 * defined below are used. 88 * These values also apply only to the d_fieldmask field for Q_XSETQLIM. 89 */ 90 #define FS_DQ_BTIMER (1<<6) 91 #define FS_DQ_ITIMER (1<<7) 92 #define FS_DQ_RTBTIMER (1<<8) 93 #define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER) 94 95 /* 96 * Warning counts are set in both super user's dquot and others. For others, 97 * warnings are set/cleared by the administrators (or automatically by going 98 * below the soft limit). Superusers warning values set the warning limits 99 * for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values 100 * defined below are used. 101 * These values also apply only to the d_fieldmask field for Q_XSETQLIM. 102 */ 103 #define FS_DQ_BWARNS (1<<9) 104 #define FS_DQ_IWARNS (1<<10) 105 #define FS_DQ_RTBWARNS (1<<11) 106 #define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS) 107 108 /* 109 * Various flags related to quotactl(2). Only relevant to XFS filesystems. 110 */ 111 #define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */ 112 #define XFS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */ 113 #define XFS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */ 114 #define XFS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */ 115 #define XFS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */ 116 #define XFS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */ 117 118 #define XFS_USER_QUOTA (1<<0) /* user quota type */ 119 #define XFS_PROJ_QUOTA (1<<1) /* project quota type */ 120 #define XFS_GROUP_QUOTA (1<<2) /* group quota type */ 121 122 /* 123 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system. 124 * Provides a centralized way to get meta infomation about the quota subsystem. 125 * eg. space taken up for user and group quotas, number of dquots currently 126 * incore. 127 */ 128 #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */ 129 130 /* 131 * Some basic infomation about 'quota files'. 132 */ 133 typedef struct fs_qfilestat { 134 __u64 qfs_ino; /* inode number */ 135 __u64 qfs_nblks; /* number of BBs 512-byte-blks */ 136 __u32 qfs_nextents; /* number of extents */ 137 } fs_qfilestat_t; 138 139 typedef struct fs_quota_stat { 140 __s8 qs_version; /* version number for future changes */ 141 __u16 qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ 142 __s8 qs_pad; /* unused */ 143 fs_qfilestat_t qs_uquota; /* user quota storage information */ 144 fs_qfilestat_t qs_gquota; /* group quota storage information */ 145 __u32 qs_incoredqs; /* number of dquots incore */ 146 __s32 qs_btimelimit; /* limit for blks timer */ 147 __s32 qs_itimelimit; /* limit for inodes timer */ 148 __s32 qs_rtbtimelimit;/* limit for rt blks timer */ 149 __u16 qs_bwarnlimit; /* limit for num warnings */ 150 __u16 qs_iwarnlimit; /* limit for num warnings */ 151 } fs_quota_stat_t; 152 153 #endif /* _LINUX_DQBLK_XFS_H */ 154