source: svn/trunk/newcon3bcm2_21bu/toolchain/mips-linux-uclibc/include/linux/dqblk_xfs.h

/*
 * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc.  All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2.1 of the GNU Lesser General Public License
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *
 * Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane,
 * Mountain View, CA 94043, USA, or: http://www.sgi.com
 */
#ifndef _LINUX_DQBLK_XFS_H
#define _LINUX_DQBLK_XFS_H

#include <linux/types.h>

/*
 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
 */

#define XQM_CMD(x)      (('X'<<8)+(x))  /* note: forms first QCMD argument */
#define XQM_COMMAND(x)  (((x) & (0xff<<8)) == ('X'<<8)) /* test if for XFS */

#define XQM_USRQUOTA    0       /* system call user quota type */
#define XQM_GRPQUOTA    1       /* system call group quota type */
#define XQM_MAXQUOTAS   2

#define Q_XQUOTAON      XQM_CMD(1)      /* enable accounting/enforcement */
#define Q_XQUOTAOFF     XQM_CMD(2)      /* disable accounting/enforcement */
#define Q_XGETQUOTA     XQM_CMD(3)      /* get disk limits and usage */
#define Q_XSETQLIM      XQM_CMD(4)      /* set disk limits */
#define Q_XGETQSTAT     XQM_CMD(5)      /* get quota subsystem status */
#define Q_XQUOTARM      XQM_CMD(6)      /* free disk space used by dquots */

/*
 * fs_disk_quota structure:
 *
 * This contains the current quota information regarding a user/proj/group.
 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
 * 512 bytes.
 */
#define FS_DQUOT_VERSION        1       /* fs_disk_quota.d_version */
typedef struct fs_disk_quota {
        __s8            d_version;      /* version of this structure */
        __s8            d_flags;        /* XFS_{USER,PROJ,GROUP}_QUOTA */
        __u16           d_fieldmask;    /* field specifier */
        __u32           d_id;           /* user, project, or group ID */
        __u64           d_blk_hardlimit;/* absolute limit on disk blks */
        __u64           d_blk_softlimit;/* preferred limit on disk blks */
        __u64           d_ino_hardlimit;/* maximum # allocated inodes */
        __u64           d_ino_softlimit;/* preferred inode limit */
        __u64           d_bcount;       /* # disk blocks owned by the user */
        __u64           d_icount;       /* # inodes owned by the user */
        __s32           d_itimer;       /* zero if within inode limits */
                                        /* if not, we refuse service */
        __s32           d_btimer;       /* similar to above; for disk blocks */
        __u16           d_iwarns;       /* # warnings issued wrt num inodes */
        __u16           d_bwarns;       /* # warnings issued wrt disk blocks */
        __s32           d_padding2;     /* padding2 - for future use */
        __u64           d_rtb_hardlimit;/* absolute limit on realtime blks */
        __u64           d_rtb_softlimit;/* preferred limit on RT disk blks */
        __u64           d_rtbcount;     /* # realtime blocks owned */
        __s32           d_rtbtimer;     /* similar to above; for RT disk blks */
        __u16           d_rtbwarns;     /* # warnings issued wrt RT disk blks */
        __s16           d_padding3;     /* padding3 - for future use */ 
        char            d_padding4[8];  /* yet more padding */
} fs_disk_quota_t;

/*
 * These fields are sent to Q_XSETQLIM to specify fields that need to change.
 */
#define FS_DQ_ISOFT     (1<<0)
#define FS_DQ_IHARD     (1<<1)
#define FS_DQ_BSOFT     (1<<2)
#define FS_DQ_BHARD     (1<<3)
#define FS_DQ_RTBSOFT   (1<<4)
#define FS_DQ_RTBHARD   (1<<5)
#define FS_DQ_LIMIT_MASK        (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
                                 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
/*
 * These timers can only be set in super user's dquot. For others, timers are
 * automatically started and stopped. Superusers timer values set the limits
 * for the rest.  In case these values are zero, the DQ_{F,B}TIMELIMIT values
 * defined below are used. 
 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
 */
#define FS_DQ_BTIMER    (1<<6)
#define FS_DQ_ITIMER    (1<<7)
#define FS_DQ_RTBTIMER  (1<<8)
#define FS_DQ_TIMER_MASK        (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)

/*
 * Warning counts are set in both super user's dquot and others. For others,
 * warnings are set/cleared by the administrators (or automatically by going
 * below the soft limit).  Superusers warning values set the warning limits
 * for the rest.  In case these values are zero, the DQ_{F,B}WARNLIMIT values
 * defined below are used. 
 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
 */
#define FS_DQ_BWARNS    (1<<9)
#define FS_DQ_IWARNS    (1<<10)
#define FS_DQ_RTBWARNS  (1<<11)
#define FS_DQ_WARNS_MASK        (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS)

/*
 * Various flags related to quotactl(2).  Only relevant to XFS filesystems.
 */
#define XFS_QUOTA_UDQ_ACCT      (1<<0)  /* user quota accounting */
#define XFS_QUOTA_UDQ_ENFD      (1<<1)  /* user quota limits enforcement */
#define XFS_QUOTA_GDQ_ACCT      (1<<2)  /* group quota accounting */
#define XFS_QUOTA_GDQ_ENFD      (1<<3)  /* group quota limits enforcement */
#define XFS_QUOTA_PDQ_ACCT      (1<<4)  /* project quota accounting */
#define XFS_QUOTA_PDQ_ENFD      (1<<5)  /* project quota limits enforcement */

#define XFS_USER_QUOTA          (1<<0)  /* user quota type */
#define XFS_PROJ_QUOTA          (1<<1)  /* project quota type */
#define XFS_GROUP_QUOTA         (1<<2)  /* group quota type */

/*
 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
 * Provides a centralized way to get meta infomation about the quota subsystem.
 * eg. space taken up for user and group quotas, number of dquots currently
 * incore.
 */
#define FS_QSTAT_VERSION        1       /* fs_quota_stat.qs_version */

/*
 * Some basic infomation about 'quota files'.
 */
typedef struct fs_qfilestat {
        __u64           qfs_ino;        /* inode number */
        __u64           qfs_nblks;      /* number of BBs 512-byte-blks */
        __u32           qfs_nextents;   /* number of extents */
} fs_qfilestat_t;

typedef struct fs_quota_stat {
        __s8            qs_version;     /* version number for future changes */
        __u16           qs_flags;       /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
        __s8            qs_pad;         /* unused */
        fs_qfilestat_t  qs_uquota;      /* user quota storage information */
        fs_qfilestat_t  qs_gquota;      /* group quota storage information */
        __u32           qs_incoredqs;   /* number of dquots incore */
        __s32           qs_btimelimit;  /* limit for blks timer */      
        __s32           qs_itimelimit;  /* limit for inodes timer */    
        __s32           qs_rtbtimelimit;/* limit for rt blks timer */   
        __u16           qs_bwarnlimit;  /* limit for num warnings */
        __u16           qs_iwarnlimit;  /* limit for num warnings */
} fs_quota_stat_t;

#endif  /* _LINUX_DQBLK_XFS_H */