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/*
* 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 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesset General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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_PRJQUOTA 2 /* system call project quota type */
#define XQM_MAXQUOTAS 3
#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 */
#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */
#define Q_XGETQSTATV XQM_CMD(8) /* newer version of get quota */
#define Q_XGETNEXTQUOTA XQM_CMD(9) /* get disk limits and usage >= ID */
/*
* 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; /* FS_{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)
/*
* Accounting values. These can only be set for filesystem with
* non-transactional quotas that require quotacheck(8) in userspace.
*/
#define FS_DQ_BCOUNT (1<<12)
#define FS_DQ_ICOUNT (1<<13)
#define FS_DQ_RTBCOUNT (1<<14)
#define FS_DQ_ACCT_MASK (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT)
/*
* Various flags related to quotactl(2).
*/
#define FS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */
#define FS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */
#define FS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */
#define FS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */
#define FS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */
#define FS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */
#define FS_USER_QUOTA (1<<0) /* user quota type */
#define FS_PROJ_QUOTA (1<<1) /* project quota type */
#define FS_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 information 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 information 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; /* FS_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;
/*
* fs_quota_statv is used by Q_XGETQSTATV for a given file system. It provides
* a centralized way to get meta information about the quota subsystem. eg.
* space taken up for user, group, and project quotas, number of dquots
* currently incore.
*
* This version has proper versioning support with appropriate padding for
* future expansions, and ability to expand for future without creating any
* backward compatibility issues.
*
* Q_XGETQSTATV uses the passed in value of the requested version via
* fs_quota_statv.qs_version to determine the return data layout of
* fs_quota_statv. The kernel will fill the data fields relevant to that
* version.
*
* If kernel does not support user space caller specified version, EINVAL will
* be returned. User space caller can then reduce the version number and retry
* the same command.
*/
#define FS_QSTATV_VERSION1 1 /* fs_quota_statv.qs_version */
/*
* Some basic information about 'quota files' for Q_XGETQSTATV command
*/
struct fs_qfilestatv {
__u64 qfs_ino; /* inode number */
__u64 qfs_nblks; /* number of BBs 512-byte-blks */
__u32 qfs_nextents; /* number of extents */
__u32 qfs_pad; /* pad for 8-byte alignment */
};
struct fs_quota_statv {
__s8 qs_version; /* version for future changes */
__u8 qs_pad1; /* pad for 16bit alignment */
__u16 qs_flags; /* FS_QUOTA_.* flags */
__u32 qs_incoredqs; /* number of dquots incore */
struct fs_qfilestatv qs_uquota; /* user quota information */
struct fs_qfilestatv qs_gquota; /* group quota information */
struct fs_qfilestatv qs_pquota; /* project quota information */
__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 */
__u64 qs_pad2[8]; /* for future proofing */
};
#endif /* _LINUX_DQBLK_XFS_H */