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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/dqblk_xfs.h
downloadlwn-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
lwn-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/dqblk_xfs.h')
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diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h
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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 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 */