linux/include/linux/dqblk_xfs.h
<<
>>
Prefs
   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
  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;        /* FS_{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 * Accounting values.  These can only be set for filesystem with
 114 * non-transactional quotas that require quotacheck(8) in userspace.
 115 */
 116#define FS_DQ_BCOUNT            (1<<12)
 117#define FS_DQ_ICOUNT            (1<<13)
 118#define FS_DQ_RTBCOUNT          (1<<14)
 119#define FS_DQ_ACCT_MASK         (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT)
 120
 121/*
 122 * Various flags related to quotactl(2).
 123 */
 124#define FS_QUOTA_UDQ_ACCT       (1<<0)  /* user quota accounting */
 125#define FS_QUOTA_UDQ_ENFD       (1<<1)  /* user quota limits enforcement */
 126#define FS_QUOTA_GDQ_ACCT       (1<<2)  /* group quota accounting */
 127#define FS_QUOTA_GDQ_ENFD       (1<<3)  /* group quota limits enforcement */
 128#define FS_QUOTA_PDQ_ACCT       (1<<4)  /* project quota accounting */
 129#define FS_QUOTA_PDQ_ENFD       (1<<5)  /* project quota limits enforcement */
 130
 131#define FS_USER_QUOTA           (1<<0)  /* user quota type */
 132#define FS_PROJ_QUOTA           (1<<1)  /* project quota type */
 133#define FS_GROUP_QUOTA          (1<<2)  /* group quota type */
 134
 135/*
 136 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
 137 * Provides a centralized way to get meta information about the quota subsystem.
 138 * eg. space taken up for user and group quotas, number of dquots currently
 139 * incore.
 140 */
 141#define FS_QSTAT_VERSION        1       /* fs_quota_stat.qs_version */
 142
 143/*
 144 * Some basic information about 'quota files'.
 145 */
 146typedef struct fs_qfilestat {
 147        __u64           qfs_ino;        /* inode number */
 148        __u64           qfs_nblks;      /* number of BBs 512-byte-blks */
 149        __u32           qfs_nextents;   /* number of extents */
 150} fs_qfilestat_t;
 151
 152typedef struct fs_quota_stat {
 153        __s8            qs_version;     /* version number for future changes */
 154        __u16           qs_flags;       /* FS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
 155        __s8            qs_pad;         /* unused */
 156        fs_qfilestat_t  qs_uquota;      /* user quota storage information */
 157        fs_qfilestat_t  qs_gquota;      /* group quota storage information */
 158        __u32           qs_incoredqs;   /* number of dquots incore */
 159        __s32           qs_btimelimit;  /* limit for blks timer */      
 160        __s32           qs_itimelimit;  /* limit for inodes timer */    
 161        __s32           qs_rtbtimelimit;/* limit for rt blks timer */   
 162        __u16           qs_bwarnlimit;  /* limit for num warnings */
 163        __u16           qs_iwarnlimit;  /* limit for num warnings */
 164} fs_quota_stat_t;
 165
 166#endif  /* _LINUX_DQBLK_XFS_H */
 167
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.