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A QA test to reproduce the xfs_trans_brelse() in quota bug.
Merge of master-melb:xfs-cmds:23589a by kenmcd.

  A QA test to reproduce the xfs_trans_brelse() in quota bug.

#! /bin/sh
# FS QA Test No. 118
#
# To test out pv#940675 crash in xfs_trans_brelse + quotas
# Without the fix, this will create an ASSERT failure in debug kernels
# and crash a non-debug kernel.
#
#-----------------------------------------------------------------------
# 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 version 2 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.
# 
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like.  Any license provided herein, whether implied or
# otherwise, applies only to this software file.  Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
# 
# You should have received a copy of the GNU General Public License along
# with this program; if not, write the Free Software Foundation, Inc., 59
# Temple Place - Suite 330, Boston MA 02111-1307, USA.
# 
# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
# Mountain View, CA  94043, or:
# 
# http://www.sgi.com 
# 
# For further information regarding this notice, see: 
# 
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#-----------------------------------------------------------------------
#
# creator
owner=tes@crackle.melbourne.sgi.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
    cd /
    rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common.rc
. ./common.filter

# real QA test starts here

# Modify as appropriate.
_supported_fs xfs
_supported_os IRIX Linux

_require_scratch

_chowning_file()
{
	file=file.chown
	let start=$1
	let limit=$2
	let delta=$3

	cd $SCRATCH_MNT
	let count=$start
	while (( count < limit )); do
	    touch $file
	    chown $count.$count $file
	    echo -n "."
	    let count=count+delta
	done
	echo ""
}


echo "mkfs on scratch"
_scratch_mkfs_xfs >$seq.full

echo "mount with quotas"
export MOUNT_OPTIONS="-o uquota"
_scratch_mount

echo "creating quota file with holes"
_chowning_file 1000 2000 100

echo "now fill in the holes"
_chowning_file 1000 2000 1

echo "look at the final file ownership for fun"
stat -ug $SCRATCH_MNT/* | sed "s#$SCRATCH_MNT#SCRATCH_MNT#g"

# success, all done
status=0
exit