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vlmcsd-svn1065-2016-10-12-Hotbird64
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/* This just represents the non-kernel parts of <linux/quota.h>.
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*
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* here's the corresponding copyright:
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* Copyright (c) 1982, 1986 Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Robert Elz at The University of Melbourne.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _SYS_QUOTA_H
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#define _SYS_QUOTA_H 1
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#include <features.h>
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#include <sys/types.h>
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/*
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* Select between different incompatible quota versions.
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* Default to the version used by Linux kernel version 2.4.22
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* or later. */
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#ifndef _LINUX_QUOTA_VERSION
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# define _LINUX_QUOTA_VERSION 2
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#endif
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/*
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* Convert diskblocks to blocks and the other way around.
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* currently only to fool the BSD source. :-)
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*/
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#define dbtob(num) ((num) << 10)
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#define btodb(num) ((num) >> 10)
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/*
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* Convert count of filesystem blocks to diskquota blocks, meant
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* for filesystems where i_blksize != BLOCK_SIZE
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*/
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#define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / BLOCK_SIZE)
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/*
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* Definitions for disk quotas imposed on the average user
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* (big brother finally hits Linux).
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*
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* The following constants define the amount of time given a user
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* before the soft limits are treated as hard limits (usually resulting
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* in an allocation failure). The timer is started when the user crosses
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* their soft limit, it is reset when they go below their soft limit.
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*/
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#define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */
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#define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */
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#define MAXQUOTAS 2
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#define USRQUOTA 0 /* element used for user quotas */
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#define GRPQUOTA 1 /* element used for group quotas */
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/*
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* Definitions for the default names of the quotas files.
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*/
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#define INITQFNAMES { \
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"user", /* USRQUOTA */ \
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"group", /* GRPQUOTA */ \
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"undefined", \
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};
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#define QUOTAFILENAME "quota"
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#define QUOTAGROUP "staff"
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#define NR_DQHASH 43 /* Just an arbitrary number any suggestions ? */
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#define NR_DQUOTS 256 /* Number of quotas active at one time */
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/*
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* Command definitions for the 'quotactl' system call.
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* The commands are broken into a main command defined below
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* and a subcommand that is used to convey the type of
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* quota that is being manipulated (see above).
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*/
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#define SUBCMDMASK 0x00ff
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#define SUBCMDSHIFT 8
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#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
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#if _LINUX_QUOTA_VERSION < 2
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# define Q_QUOTAON 0x0100 /* enable quotas */
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# define Q_QUOTAOFF 0x0200 /* disable quotas */
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# define Q_GETQUOTA 0x0300 /* get limits and usage */
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# define Q_SETQUOTA 0x0400 /* set limits and usage */
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# define Q_SETUSE 0x0500 /* set usage */
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# define Q_SYNC 0x0600 /* sync disk copy of a filesystems quotas */
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# define Q_SETQLIM 0x0700 /* set limits */
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# define Q_GETSTATS 0x0800 /* get collected stats */
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# define Q_RSQUASH 0x1000 /* set root_squash option */
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#else
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# define Q_SYNC 0x800001 /* sync disk copy of a filesystems quotas */
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# define Q_QUOTAON 0x800002 /* turn quotas on */
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# define Q_QUOTAOFF 0x800003 /* turn quotas off */
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# define Q_GETFMT 0x800004 /* get quota format used on given filesystem */
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# define Q_GETINFO 0x800005 /* get information about quota files */
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# define Q_SETINFO 0x800006 /* set information about quota files */
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# define Q_GETQUOTA 0x800007 /* get user quota structure */
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# define Q_SETQUOTA 0x800008 /* set user quota structure */
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#endif
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/*
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* The following structure defines the format of the disk quota file
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* (as it appears on disk) - the file is an array of these structures
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* indexed by user or group number.
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*/
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#if _LINUX_QUOTA_VERSION < 2
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struct dqblk
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{
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u_int32_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
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u_int32_t dqb_bsoftlimit; /* preferred limit on disk blks */
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u_int32_t dqb_curblocks; /* current block count */
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u_int32_t dqb_ihardlimit; /* maximum # allocated inodes */
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u_int32_t dqb_isoftlimit; /* preferred inode limit */
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u_int32_t dqb_curinodes; /* current # allocated inodes */
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time_t dqb_btime; /* time limit for excessive disk use */
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time_t dqb_itime; /* time limit for excessive files */
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};
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#else
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/* Flags that indicate which fields in dqblk structure are valid. */
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#define QIF_BLIMITS 1
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#define QIF_SPACE 2
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#define QIF_ILIMITS 4
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#define QIF_INODES 8
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#define QIF_BTIME 16
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#define QIF_ITIME 32
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#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
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#define QIF_USAGE (QIF_SPACE | QIF_INODES)
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#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
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#define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
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struct dqblk
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{
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u_int64_t dqb_bhardlimit; /* absolute limit on disk quota blocks alloc */
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u_int64_t dqb_bsoftlimit; /* preferred limit on disk quota blocks */
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u_int64_t dqb_curspace; /* current quota block count */
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u_int64_t dqb_ihardlimit; /* maximum # allocated inodes */
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u_int64_t dqb_isoftlimit; /* preferred inode limit */
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u_int64_t dqb_curinodes; /* current # allocated inodes */
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u_int64_t dqb_btime; /* time limit for excessive disk use */
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u_int64_t dqb_itime; /* time limit for excessive files */
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u_int32_t dqb_valid; /* bitmask of QIF_* constants */
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};
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#endif
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/*
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* Shorthand notation.
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*/
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#define dq_bhardlimit dq_dqb.dqb_bhardlimit
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#define dq_bsoftlimit dq_dqb.dqb_bsoftlimit
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#if _LINUX_QUOTA_VERSION < 2
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# define dq_curblocks dq_dqb.dqb_curblocks
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#else
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# define dq_curspace dq_dqb.dqb_curspace
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# define dq_valid dq_dqb.dqb_valid
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#endif
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#define dq_ihardlimit dq_dqb.dqb_ihardlimit
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#define dq_isoftlimit dq_dqb.dqb_isoftlimit
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#define dq_curinodes dq_dqb.dqb_curinodes
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#define dq_btime dq_dqb.dqb_btime
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#define dq_itime dq_dqb.dqb_itime
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#define dqoff(UID) ((loff_t)((UID) * sizeof (struct dqblk)))
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#if _LINUX_QUOTA_VERSION < 2
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struct dqstats
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{
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u_int32_t lookups;
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u_int32_t drops;
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u_int32_t reads;
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u_int32_t writes;
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u_int32_t cache_hits;
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u_int32_t pages_allocated;
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u_int32_t allocated_dquots;
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u_int32_t free_dquots;
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u_int32_t syncs;
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};
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#else
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/* Flags that indicate which fields in dqinfo structure are valid. */
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# define IIF_BGRACE 1
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# define IIF_IGRACE 2
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# define IIF_FLAGS 4
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# define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
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struct dqinfo
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{
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u_int64_t dqi_bgrace;
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u_int64_t dqi_igrace;
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u_int32_t dqi_flags;
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u_int32_t dqi_valid;
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};
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#endif
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__BEGIN_DECLS
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extern int quotactl (int __cmd, const char *__special, int __id,
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caddr_t __addr) __THROW;
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__END_DECLS
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#endif /* sys/quota.h */
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