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/*
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 * Copyright (c) 1995-2001 Silicon Graphics, Inc.  All Rights Reserved.
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 *
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of version 2.1 of the GNU Lesser General Public License
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 * as published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it would be useful, but
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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 *
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 * Further, this software is distributed without any warranty that it is
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 * free of the rightful claim of any third person regarding infringement
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 * or the like.  Any license provided herein, whether implied or
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 * otherwise, applies only to this software file.  Patent licenses, if
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 * any, provided herein do not apply to combinations of this program with
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 * other software, or any other product whatsoever.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this program; if not, write the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
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 * USA.
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 *
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 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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 * Mountain View, CA  94043, or:
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 *
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 * http://www.sgi.com
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 *
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 * For further information regarding this notice, see:
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 *
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 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
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 */
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#ifndef _LINUX_DQBLK_XFS_H
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#define _LINUX_DQBLK_XFS_H
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#include <linux/types.h>
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/*
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 * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
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 */
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#define XQM_CMD(x)      (('X'<<8)+(x))  /* note: forms first QCMD argument */
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#define Q_XQUOTAON      XQM_CMD(0x1)    /* enable accounting/enforcement */
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#define Q_XQUOTAOFF     XQM_CMD(0x2)    /* disable accounting/enforcement */
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#define Q_XGETQUOTA     XQM_CMD(0x3)    /* get disk limits and usage */
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#define Q_XSETQLIM      XQM_CMD(0x4)    /* set disk limits */
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#define Q_XGETQSTAT     XQM_CMD(0x5)    /* get quota subsystem status */
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#define Q_XQUOTARM      XQM_CMD(0x6)    /* free disk space used by dquots */
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/*
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 * fs_disk_quota structure:
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 *
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 * This contains the current quota information regarding a user/proj/group.
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 * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
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 * 512 bytes.
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 */
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#define FS_DQUOT_VERSION        1       /* fs_disk_quota.d_version */
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typedef struct fs_disk_quota {
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        __s8            d_version;      /* version of this structure */
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        __s8            d_flags;        /* XFS_{USER,PROJ,GROUP}_QUOTA */
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        __u16           d_fieldmask;    /* field specifier */
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        __u32           d_id;           /* user, project, or group ID */
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        __u64           d_blk_hardlimit;/* absolute limit on disk blks */
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        __u64           d_blk_softlimit;/* preferred limit on disk blks */
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        __u64           d_ino_hardlimit;/* maximum # allocated inodes */
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        __u64           d_ino_softlimit;/* preferred inode limit */
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        __u64           d_bcount;       /* # disk blocks owned by the user */
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        __u64           d_icount;       /* # inodes owned by the user */
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        __s32           d_itimer;       /* zero if within inode limits */
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                                        /* if not, we refuse service */
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        __s32           d_btimer;       /* similar to above; for disk blocks */
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        __u16           d_iwarns;       /* # warnings issued wrt num inodes */
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        __u16           d_bwarns;       /* # warnings issued wrt disk blocks */
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        __s32           d_padding2;     /* padding2 - for future use */
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        __u64           d_rtb_hardlimit;/* absolute limit on realtime blks */
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        __u64           d_rtb_softlimit;/* preferred limit on RT disk blks */
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        __u64           d_rtbcount;     /* # realtime blocks owned */
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        __s32           d_rtbtimer;     /* similar to above; for RT disk blks */
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        __u16           d_rtbwarns;     /* # warnings issued wrt RT disk blks */
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        __s16           d_padding3;     /* padding3 - for future use */
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        char            d_padding4[8];  /* yet more padding */
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} fs_disk_quota_t;
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/*
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 * These fields are sent to Q_XSETQLIM to specify fields that need to change.
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 */
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#define FS_DQ_ISOFT     (1<<0)
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#define FS_DQ_IHARD     (1<<1)
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#define FS_DQ_BSOFT     (1<<2)
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#define FS_DQ_BHARD     (1<<3)
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#define FS_DQ_RTBSOFT   (1<<4)
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#define FS_DQ_RTBHARD   (1<<5)
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#define FS_DQ_LIMIT_MASK        (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
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                                 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
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/*
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 * These timers can only be set in super user's dquot. For others, timers are
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 * automatically started and stopped. Superusers timer values set the limits
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 * for the rest.  In case these values are zero, the DQ_{F,B}TIMELIMIT values
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 * defined below are used.
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 * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
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 */
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#define FS_DQ_BTIMER    (1<<6)
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#define FS_DQ_ITIMER    (1<<7)
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#define FS_DQ_RTBTIMER  (1<<8)
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#define FS_DQ_TIMER_MASK        (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)
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/*
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 * Various flags related to quotactl(2).  Only relevant to XFS filesystems.
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 */
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#define XFS_QUOTA_UDQ_ACCT      (1<<0)  /* user quota accounting */
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#define XFS_QUOTA_UDQ_ENFD      (1<<1)  /* user quota limits enforcement */
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#define XFS_QUOTA_GDQ_ACCT      (1<<2)  /* group quota accounting */
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#define XFS_QUOTA_GDQ_ENFD      (1<<3)  /* group quota limits enforcement */
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#define XFS_USER_QUOTA          (1<<0)  /* user quota type */
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#define XFS_PROJ_QUOTA          (1<<1)  /* (IRIX) project quota type */
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#define XFS_GROUP_QUOTA         (1<<2)  /* group quota type */
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/*
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 * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.
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 * Provides a centralized way to get meta infomation about the quota subsystem.
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 * eg. space taken up for user and group quotas, number of dquots currently
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 * incore.
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 */
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#define FS_QSTAT_VERSION        1       /* fs_quota_stat.qs_version */
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/*
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 * Some basic infomation about 'quota files'.
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 */
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typedef struct fs_qfilestat {
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        __u64           qfs_ino;        /* inode number */
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        __u64           qfs_nblks;      /* number of BBs 512-byte-blks */
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        __u32           qfs_nextents;   /* number of extents */
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} fs_qfilestat_t;
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typedef struct fs_quota_stat {
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        __s8            qs_version;     /* version number for future changes */
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        __u16           qs_flags;       /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
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        __s8            qs_pad;         /* unused */
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        fs_qfilestat_t  qs_uquota;      /* user quota storage information */
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        fs_qfilestat_t  qs_gquota;      /* group quota storage information */
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        __u32           qs_incoredqs;   /* number of dquots incore */
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        __s32           qs_btimelimit;  /* limit for blks timer */     
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        __s32           qs_itimelimit;  /* limit for inodes timer */   
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        __s32           qs_rtbtimelimit;/* limit for rt blks timer */  
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        __u16           qs_bwarnlimit;  /* limit for num warnings */
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        __u16           qs_iwarnlimit;  /* limit for num warnings */
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} fs_quota_stat_t;
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#endif  /* _LINUX_DQBLK_XFS_H */