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2bd0ea18 1/*
cc08d43e 2 * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
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3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
22 *
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
25 *
26 * http://www.sgi.com
27 *
28 * For further information regarding this notice, see:
29 *
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
31 */
32#ifndef __XFS_DQBLK_H__
33#define __XFS_DQBLK_H__
34
35/*
36 * The ondisk form of a dquot structure.
37 */
38#define XFS_DQUOT_MAGIC 0x4451 /* 'DQ' */
39#define XFS_DQUOT_VERSION (u_int8_t)0x01 /* latest version number */
40
41/*
42 * This is the main portion of the on-disk representation of quota
43 * information for a user. This is the q_core of the xfs_dquot_t that
44 * is kept in kernel memory. We pad this with some more expansion room
45 * to construct the on disk structure.
46 */
47typedef struct xfs_disk_dquot {
48/*16*/ u_int16_t d_magic; /* dquot magic = XFS_DQUOT_MAGIC */
49/*8 */ u_int8_t d_version; /* dquot version */
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50/*8 */ u_int8_t d_flags; /* XFS_DQ_USER/PROJ/GROUP */
51/*32*/ xfs_dqid_t d_id; /* user,project,group id */
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52/*64*/ xfs_qcnt_t d_blk_hardlimit;/* absolute limit on disk blks */
53/*64*/ xfs_qcnt_t d_blk_softlimit;/* preferred limit on disk blks */
54/*64*/ xfs_qcnt_t d_ino_hardlimit;/* maximum # allocated inodes */
55/*64*/ xfs_qcnt_t d_ino_softlimit;/* preferred inode limit */
56/*64*/ xfs_qcnt_t d_bcount; /* disk blocks owned by the user */
57/*64*/ xfs_qcnt_t d_icount; /* inodes owned by the user */
58/*32*/ __int32_t d_itimer; /* zero if within inode limits if not,
59 this is when we refuse service */
60/*32*/ __int32_t d_btimer; /* similar to above; for disk blocks */
61/*16*/ xfs_qwarncnt_t d_iwarns; /* warnings issued wrt num inodes */
62/*16*/ xfs_qwarncnt_t d_bwarns; /* warnings issued wrt disk blocks */
63/*32*/ __int32_t d_pad0; /* 64 bit align */
64/*64*/ xfs_qcnt_t d_rtb_hardlimit;/* absolute limit on realtime blks */
65/*64*/ xfs_qcnt_t d_rtb_softlimit;/* preferred limit on RT disk blks */
66/*64*/ xfs_qcnt_t d_rtbcount; /* realtime blocks owned */
67/*32*/ __int32_t d_rtbtimer; /* similar to above; for RT disk blocks */
68/*16*/ xfs_qwarncnt_t d_rtbwarns; /* warnings issued wrt RT disk blocks */
69/*16*/ __uint16_t d_pad;
70} xfs_disk_dquot_t;
71
72/*
73 * This is what goes on disk. This is separated from the xfs_disk_dquot because
74 * carrying the unnecessary padding would be a waste of memory.
75 */
76typedef struct xfs_dqblk {
77 xfs_disk_dquot_t dd_diskdq; /* portion that lives incore as well */
78 char dd_fill[32]; /* filling for posterity */
79} xfs_dqblk_t;
80
81/*
82 * flags for q_flags field in the dquot.
83 */
84#define XFS_DQ_USER 0x0001 /* a user quota */
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85/* #define XFS_DQ_PROJ 0x0002 -- project quota (IRIX) */
86#define XFS_DQ_GROUP 0x0004 /* a group quota */
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87#define XFS_DQ_FLOCKED 0x0008 /* flush lock taken */
88#define XFS_DQ_DIRTY 0x0010 /* dquot is dirty */
89#define XFS_DQ_WANT 0x0020 /* for lookup/reclaim race */
90#define XFS_DQ_INACTIVE 0x0040 /* dq off mplist & hashlist */
91#define XFS_DQ_MARKER 0x0080 /* sentinel */
92
93/*
b36eef04 94 * In the worst case, when both user and group quotas are on,
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95 * we can have a max of three dquots changing in a single transaction.
96 */
97#define XFS_DQUOT_LOGRES(mp) (sizeof(xfs_disk_dquot_t) * 3)
98
99#endif /* __XFS_DQBLK_H__ */