/* * 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 */ /* * 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 */