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228 lines
9.2 KiB
228 lines
9.2 KiB
/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ |
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/* |
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* Copyright (c) 1995-2001,2004 Silicon Graphics, Inc. All Rights Reserved. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public License |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesset General Public License |
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* along with this program; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef _LINUX_DQBLK_XFS_H |
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#define _LINUX_DQBLK_XFS_H |
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#include <linux/types.h> |
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/* |
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* Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM). |
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*/ |
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#define XQM_CMD(x) (('X'<<8)+(x)) /* note: forms first QCMD argument */ |
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#define XQM_COMMAND(x) (((x) & (0xff<<8)) == ('X'<<8)) /* test if for XFS */ |
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#define XQM_USRQUOTA 0 /* system call user quota type */ |
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#define XQM_GRPQUOTA 1 /* system call group quota type */ |
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#define XQM_PRJQUOTA 2 /* system call project quota type */ |
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#define XQM_MAXQUOTAS 3 |
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#define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */ |
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#define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */ |
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#define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */ |
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#define Q_XSETQLIM XQM_CMD(4) /* set disk limits */ |
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#define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */ |
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#define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */ |
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#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */ |
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#define Q_XGETQSTATV XQM_CMD(8) /* newer version of get quota */ |
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#define Q_XGETNEXTQUOTA XQM_CMD(9) /* get disk limits and usage >= ID */ |
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/* |
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* fs_disk_quota structure: |
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* |
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* This contains the current quota information regarding a user/proj/group. |
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* It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of |
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* 512 bytes. |
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*/ |
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#define FS_DQUOT_VERSION 1 /* fs_disk_quota.d_version */ |
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typedef struct fs_disk_quota { |
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__s8 d_version; /* version of this structure */ |
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__s8 d_flags; /* FS_{USER,PROJ,GROUP}_QUOTA */ |
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__u16 d_fieldmask; /* field specifier */ |
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__u32 d_id; /* user, project, or group ID */ |
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__u64 d_blk_hardlimit;/* absolute limit on disk blks */ |
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__u64 d_blk_softlimit;/* preferred limit on disk blks */ |
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__u64 d_ino_hardlimit;/* maximum # allocated inodes */ |
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__u64 d_ino_softlimit;/* preferred inode limit */ |
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__u64 d_bcount; /* # disk blocks owned by the user */ |
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__u64 d_icount; /* # inodes owned by the user */ |
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__s32 d_itimer; /* Zero if within inode limits. If |
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* not, we refuse service at this time |
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* (in seconds since Unix epoch) */ |
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__s32 d_btimer; /* similar to above; for disk blocks */ |
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__u16 d_iwarns; /* # warnings issued wrt num inodes */ |
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__u16 d_bwarns; /* # warnings issued wrt disk blocks */ |
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__s8 d_itimer_hi; /* upper 8 bits of timer values */ |
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__s8 d_btimer_hi; |
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__s8 d_rtbtimer_hi; |
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__s8 d_padding2; /* padding2 - for future use */ |
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__u64 d_rtb_hardlimit;/* absolute limit on realtime blks */ |
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__u64 d_rtb_softlimit;/* preferred limit on RT disk blks */ |
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__u64 d_rtbcount; /* # realtime blocks owned */ |
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__s32 d_rtbtimer; /* similar to above; for RT disk blks */ |
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__u16 d_rtbwarns; /* # warnings issued wrt RT disk blks */ |
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__s16 d_padding3; /* padding3 - for future use */ |
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char d_padding4[8]; /* yet more padding */ |
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} fs_disk_quota_t; |
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/* |
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* These fields are sent to Q_XSETQLIM to specify fields that need to change. |
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*/ |
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#define FS_DQ_ISOFT (1<<0) |
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#define FS_DQ_IHARD (1<<1) |
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#define FS_DQ_BSOFT (1<<2) |
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#define FS_DQ_BHARD (1<<3) |
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#define FS_DQ_RTBSOFT (1<<4) |
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#define FS_DQ_RTBHARD (1<<5) |
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#define FS_DQ_LIMIT_MASK (FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \ |
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FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD) |
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/* |
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* These timers can only be set in super user's dquot. For others, timers are |
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* automatically started and stopped. Superusers timer values set the limits |
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* for the rest. In case these values are zero, the DQ_{F,B}TIMELIMIT values |
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* defined below are used. |
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* These values also apply only to the d_fieldmask field for Q_XSETQLIM. |
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*/ |
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#define FS_DQ_BTIMER (1<<6) |
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#define FS_DQ_ITIMER (1<<7) |
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#define FS_DQ_RTBTIMER (1<<8) |
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#define FS_DQ_TIMER_MASK (FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER) |
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/* |
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* Warning counts are set in both super user's dquot and others. For others, |
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* warnings are set/cleared by the administrators (or automatically by going |
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* below the soft limit). Superusers warning values set the warning limits |
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* for the rest. In case these values are zero, the DQ_{F,B}WARNLIMIT values |
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* defined below are used. |
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* These values also apply only to the d_fieldmask field for Q_XSETQLIM. |
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*/ |
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#define FS_DQ_BWARNS (1<<9) |
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#define FS_DQ_IWARNS (1<<10) |
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#define FS_DQ_RTBWARNS (1<<11) |
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#define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS) |
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/* |
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* Accounting values. These can only be set for filesystem with |
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* non-transactional quotas that require quotacheck(8) in userspace. |
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*/ |
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#define FS_DQ_BCOUNT (1<<12) |
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#define FS_DQ_ICOUNT (1<<13) |
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#define FS_DQ_RTBCOUNT (1<<14) |
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#define FS_DQ_ACCT_MASK (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT) |
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/* |
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* Quota expiration timestamps are 40-bit signed integers, with the upper 8 |
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* bits encoded in the _hi fields. |
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*/ |
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#define FS_DQ_BIGTIME (1<<15) |
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/* |
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* Various flags related to quotactl(2). |
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*/ |
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#define FS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */ |
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#define FS_QUOTA_UDQ_ENFD (1<<1) /* user quota limits enforcement */ |
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#define FS_QUOTA_GDQ_ACCT (1<<2) /* group quota accounting */ |
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#define FS_QUOTA_GDQ_ENFD (1<<3) /* group quota limits enforcement */ |
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#define FS_QUOTA_PDQ_ACCT (1<<4) /* project quota accounting */ |
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#define FS_QUOTA_PDQ_ENFD (1<<5) /* project quota limits enforcement */ |
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#define FS_USER_QUOTA (1<<0) /* user quota type */ |
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#define FS_PROJ_QUOTA (1<<1) /* project quota type */ |
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#define FS_GROUP_QUOTA (1<<2) /* group quota type */ |
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/* |
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* fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system. |
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* Provides a centralized way to get meta information about the quota subsystem. |
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* eg. space taken up for user and group quotas, number of dquots currently |
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* incore. |
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*/ |
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#define FS_QSTAT_VERSION 1 /* fs_quota_stat.qs_version */ |
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/* |
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* Some basic information about 'quota files'. |
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*/ |
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typedef struct fs_qfilestat { |
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__u64 qfs_ino; /* inode number */ |
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__u64 qfs_nblks; /* number of BBs 512-byte-blks */ |
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__u32 qfs_nextents; /* number of extents */ |
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} fs_qfilestat_t; |
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typedef struct fs_quota_stat { |
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__s8 qs_version; /* version number for future changes */ |
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__u16 qs_flags; /* FS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */ |
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__s8 qs_pad; /* unused */ |
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fs_qfilestat_t qs_uquota; /* user quota storage information */ |
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fs_qfilestat_t qs_gquota; /* group quota storage information */ |
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__u32 qs_incoredqs; /* number of dquots incore */ |
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__s32 qs_btimelimit; /* limit for blks timer */ |
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__s32 qs_itimelimit; /* limit for inodes timer */ |
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__s32 qs_rtbtimelimit;/* limit for rt blks timer */ |
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__u16 qs_bwarnlimit; /* limit for num warnings */ |
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__u16 qs_iwarnlimit; /* limit for num warnings */ |
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} fs_quota_stat_t; |
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/* |
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* fs_quota_statv is used by Q_XGETQSTATV for a given file system. It provides |
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* a centralized way to get meta information about the quota subsystem. eg. |
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* space taken up for user, group, and project quotas, number of dquots |
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* currently incore. |
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* |
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* This version has proper versioning support with appropriate padding for |
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* future expansions, and ability to expand for future without creating any |
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* backward compatibility issues. |
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* |
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* Q_XGETQSTATV uses the passed in value of the requested version via |
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* fs_quota_statv.qs_version to determine the return data layout of |
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* fs_quota_statv. The kernel will fill the data fields relevant to that |
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* version. |
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* |
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* If kernel does not support user space caller specified version, EINVAL will |
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* be returned. User space caller can then reduce the version number and retry |
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* the same command. |
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*/ |
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#define FS_QSTATV_VERSION1 1 /* fs_quota_statv.qs_version */ |
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/* |
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* Some basic information about 'quota files' for Q_XGETQSTATV command |
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*/ |
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struct fs_qfilestatv { |
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__u64 qfs_ino; /* inode number */ |
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__u64 qfs_nblks; /* number of BBs 512-byte-blks */ |
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__u32 qfs_nextents; /* number of extents */ |
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__u32 qfs_pad; /* pad for 8-byte alignment */ |
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}; |
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struct fs_quota_statv { |
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__s8 qs_version; /* version for future changes */ |
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__u8 qs_pad1; /* pad for 16bit alignment */ |
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__u16 qs_flags; /* FS_QUOTA_.* flags */ |
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__u32 qs_incoredqs; /* number of dquots incore */ |
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struct fs_qfilestatv qs_uquota; /* user quota information */ |
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struct fs_qfilestatv qs_gquota; /* group quota information */ |
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struct fs_qfilestatv qs_pquota; /* project quota information */ |
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__s32 qs_btimelimit; /* limit for blks timer */ |
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__s32 qs_itimelimit; /* limit for inodes timer */ |
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__s32 qs_rtbtimelimit;/* limit for rt blks timer */ |
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__u16 qs_bwarnlimit; /* limit for num warnings */ |
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__u16 qs_iwarnlimit; /* limit for num warnings */ |
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__u16 qs_rtbwarnlimit;/* limit for rt blks warnings */ |
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__u16 qs_pad3; |
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__u32 qs_pad4; |
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__u64 qs_pad2[7]; /* for future proofing */ |
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}; |
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#endif /* _LINUX_DQBLK_XFS_H */
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