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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: #define Q_XGETQSTATV XQM_CMD(8) /* newer version of get quota */ 42: 43: /* 44: * fs_disk_quota structure: 45: * 46: * This contains the current quota information regarding a user/proj/group. 47: * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of 48: * 512 bytes. 49: */ 50: #define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */ 51: typedef struct fs_disk_quota { 52: __s8 d_version; /* version of this structure */ 53: __s8 d_flags; /* FS_{USER,PROJ,GROUP}_QUOTA */ 54: __u16 d_fieldmask; /* field specifier */ 55: __u32 d_id; /* user, project, or group ID */ 56: __u64 d_blk_hardlimit;/* absolute limit on disk blks */ 57: __u64 d_blk_softlimit;/* preferred limit on disk blks */ 58: __u64 d_ino_hardlimit;/* maximum # allocated inodes */ 59: __u64 d_ino_softlimit;/* preferred inode limit */ 60: __u64 d_bcount; /* # disk blocks owned by the user */ 61: __u64 d_icount; /* # inodes owned by the user */ 62: __s32 d_itimer; /* zero if within inode limits */ 63: /* if not, we refuse service */ 64: __s32 d_btimer; /* similar to above; for disk blocks */ 65: __u16 d_iwarns; /* # warnings issued wrt num inodes */ 66: __u16 d_bwarns; /* # warnings issued wrt disk blocks */ 67: __s32 d_padding2; /* padding2 - for future use */ 68: __u64 d_rtb_hardlimit;/* absolute limit on realtime blks */ 69: __u64 d_rtb_softlimit;/* preferred limit on RT disk blks */ 70: __u64 d_rtbcount; /* # realtime blocks owned */ 71: __s32 d_rtbtimer; /* similar to above; for RT disk blks */ 72: __u16 d_rtbwarns; /* # warnings issued wrt RT disk blks */ 73: __s16 d_padding3; /* padding3 - for future use */ 74: char d_padding4[8]; /* yet more padding */ 75: } fs_disk_quota_t; 76: 77: /* 78: * These fields are sent to Q_XSETQLIM to specify fields that need to change. 79: */ 80: #define FS_DQ_ISOFT (1<<0) 81: #define FS_DQ_IHARD (1<<1) 82: #define FS_DQ_BSOFT (1<<2) 83: #define FS_DQ_BHARD (1<<3) 84: #define FS_DQ_RTBSOFT (1<<4) 85: #define FS_DQ_RTBHARD (1<<5) 86: #define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \ 87: FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD) 88: /* 89: * These timers can only be set in super user's dquot. For others, timers are 90: * automatically started and stopped. Superusers timer values set the limits 91: * for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values 92: * defined below are used. 93: * These values also apply only to the d_fieldmask field for Q_XSETQLIM. 94: */ 95: #define FS_DQ_BTIMER (1<<6) 96: #define FS_DQ_ITIMER (1<<7) 97: #define FS_DQ_RTBTIMER (1<<8) 98: #define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER) 99: 100: /* 101: * Warning counts are set in both super user's dquot and others. For others, 102: * warnings are set/cleared by the administrators (or automatically by going 103: * below the soft limit). Superusers warning values set the warning limits 104: * for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values 105: * defined below are used. 106: * These values also apply only to the d_fieldmask field for Q_XSETQLIM. 107: */ 108: #define FS_DQ_BWARNS (1<<9) 109: #define FS_DQ_IWARNS (1<<10) 110: #define FS_DQ_RTBWARNS (1<<11) 111: #define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS) 112: 113: /* 114: * Accounting values. These can only be set for filesystem with 115: * non-transactional quotas that require quotacheck(8) in userspace. 116: */ 117: #define FS_DQ_BCOUNT (1<<12) 118: #define FS_DQ_ICOUNT (1<<13) 119: #define FS_DQ_RTBCOUNT (1<<14) 120: #define FS_DQ_ACCT_MASK (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT) 121: 122: /* 123: * Various flags related to quotactl(2). 124: */ 125: #define FS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */ 126: #define FS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */ 127: #define FS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */ 128: #define FS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */ 129: #define FS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */ 130: #define FS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */ 131: 132: #define FS_USER_QUOTA (1<<0) /* user quota type */ 133: #define FS_PROJ_QUOTA (1<<1) /* project quota type */ 134: #define FS_GROUP_QUOTA (1<<2) /* group quota type */ 135: 136: /* 137: * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system. 138: * Provides a centralized way to get meta information about the quota subsystem. 139: * eg. space taken up for user and group quotas, number of dquots currently 140: * incore. 141: */ 142: #define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */ 143: 144: /* 145: * Some basic information about 'quota files'. 146: */ 147: typedef struct fs_qfilestat { 148: __u64 qfs_ino; /* inode number */ 149: __u64 qfs_nblks; /* number of BBs 512-byte-blks */ 150: __u32 qfs_nextents; /* number of extents */ 151: } fs_qfilestat_t; 152: 153: typedef struct fs_quota_stat { 154: __s8 qs_version; /* version number for future changes */ 155: __u16 qs_flags; /* FS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ 156: __s8 qs_pad; /* unused */ 157: fs_qfilestat_t qs_uquota; /* user quota storage information */ 158: fs_qfilestat_t qs_gquota; /* group quota storage information */ 159: __u32 qs_incoredqs; /* number of dquots incore */ 160: __s32 qs_btimelimit; /* limit for blks timer */ 161: __s32 qs_itimelimit; /* limit for inodes timer */ 162: __s32 qs_rtbtimelimit;/* limit for rt blks timer */ 163: __u16 qs_bwarnlimit; /* limit for num warnings */ 164: __u16 qs_iwarnlimit; /* limit for num warnings */ 165: } fs_quota_stat_t; 166: 167: /* 168: * fs_quota_statv is used by Q_XGETQSTATV for a given file system. It provides 169: * a centralized way to get meta information about the quota subsystem. eg. 170: * space taken up for user, group, and project quotas, number of dquots 171: * currently incore. 172: * 173: * This version has proper versioning support with appropriate padding for 174: * future expansions, and ability to expand for future without creating any 175: * backward compatibility issues. 176: * 177: * Q_XGETQSTATV uses the passed in value of the requested version via 178: * fs_quota_statv.qs_version to determine the return data layout of 179: * fs_quota_statv. The kernel will fill the data fields relevant to that 180: * version. 181: * 182: * If kernel does not support user space caller specified version, EINVAL will 183: * be returned. User space caller can then reduce the version number and retry 184: * the same command. 185: */ 186: #define FS_QSTATV_VERSION1 1 /* fs_quota_statv.qs_version */ 187: /* 188: * Some basic information about 'quota files' for Q_XGETQSTATV command 189: */ 190: struct fs_qfilestatv { 191: __u64 qfs_ino; /* inode number */ 192: __u64 qfs_nblks; /* number of BBs 512-byte-blks */ 193: __u32 qfs_nextents; /* number of extents */ 194: __u32 qfs_pad; /* pad for 8-byte alignment */ 195: }; 196: 197: struct fs_quota_statv { 198: __s8 qs_version; /* version for future changes */ 199: __u8 qs_pad1; /* pad for 16bit alignment */ 200: __u16 qs_flags; /* FS_QUOTA_.* flags */ 201: __u32 qs_incoredqs; /* number of dquots incore */ 202: struct fs_qfilestatv qs_uquota; /* user quota information */ 203: struct fs_qfilestatv qs_gquota; /* group quota information */ 204: struct fs_qfilestatv qs_pquota; /* project quota information */ 205: __s32 qs_btimelimit; /* limit for blks timer */ 206: __s32 qs_itimelimit; /* limit for inodes timer */ 207: __s32 qs_rtbtimelimit;/* limit for rt blks timer */ 208: __u16 qs_bwarnlimit; /* limit for num warnings */ 209: __u16 qs_iwarnlimit; /* limit for num warnings */ 210: __u64 qs_pad2[8]; /* for future proofing */ 211: }; 212: 213: #endif /* _LINUX_DQBLK_XFS_H */ 214: