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/*
* Copyright (c) 2000-2005 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 General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would 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 the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __XFS_FORMAT_H__
#define __XFS_FORMAT_H__
/*
* XFS On Disk Format Definitions
*
* This header file defines all the on-disk format definitions for
* general XFS objects. Directory and attribute related objects are defined in
* xfs_da_format.h, which log and log item formats are defined in
* xfs_log_format.h. Everything else goes here.
*/
/*
* Dquot and dquot block format definitions
*/
#define XFS_DQUOT_MAGIC 0x4451 /* 'DQ' */
#define XFS_DQUOT_VERSION (u_int8_t)0x01 /* latest version number */
/*
* This is the main portion of the on-disk representation of quota
* information for a user. This is the q_core of the xfs_dquot_t that
* is kept in kernel memory. We pad this with some more expansion room
* to construct the on disk structure.
*/
typedef struct xfs_disk_dquot {
__be16 d_magic; /* dquot magic = XFS_DQUOT_MAGIC */
__u8 d_version; /* dquot version */
__u8 d_flags; /* XFS_DQ_USER/PROJ/GROUP */
__be32 d_id; /* user,project,group id */
__be64 d_blk_hardlimit;/* absolute limit on disk blks */
__be64 d_blk_softlimit;/* preferred limit on disk blks */
__be64 d_ino_hardlimit;/* maximum # allocated inodes */
__be64 d_ino_softlimit;/* preferred inode limit */
__be64 d_bcount; /* disk blocks owned by the user */
__be64 d_icount; /* inodes owned by the user */
__be32 d_itimer; /* zero if within inode limits if not,
this is when we refuse service */
__be32 d_btimer; /* similar to above; for disk blocks */
__be16 d_iwarns; /* warnings issued wrt num inodes */
__be16 d_bwarns; /* warnings issued wrt disk blocks */
__be32 d_pad0; /* 64 bit align */
__be64 d_rtb_hardlimit;/* absolute limit on realtime blks */
__be64 d_rtb_softlimit;/* preferred limit on RT disk blks */
__be64 d_rtbcount; /* realtime blocks owned */
__be32 d_rtbtimer; /* similar to above; for RT disk blocks */
__be16 d_rtbwarns; /* warnings issued wrt RT disk blocks */
__be16 d_pad;
} xfs_disk_dquot_t;
/*
* This is what goes on disk. This is separated from the xfs_disk_dquot because
* carrying the unnecessary padding would be a waste of memory.
*/
typedef struct xfs_dqblk {
xfs_disk_dquot_t dd_diskdq; /* portion that lives incore as well */
char dd_fill[4]; /* filling for posterity */
/*
* These two are only present on filesystems with the CRC bits set.
*/
__be32 dd_crc; /* checksum */
__be64 dd_lsn; /* last modification in log */
uuid_t dd_uuid; /* location information */
} xfs_dqblk_t;
#define XFS_DQUOT_CRC_OFF offsetof(struct xfs_dqblk, dd_crc)
#endif /* __XFS_FORMAT_H__ */
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