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Diffstat (limited to 'include/linux/dqblk_xfs.h')
| -rw-r--r-- | include/linux/dqblk_xfs.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h new file mode 100644 index 00000000000..cb31719ee19 --- /dev/null +++ b/include/linux/dqblk_xfs.h @@ -0,0 +1,159 @@ +/* + * 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 */ |