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Pre-create test file so reader wont quit if it passes the writer.
Merge of master-melb:xfs-cmds:26951a by kenmcd.

  Pre-create test file so reader wont quit if it passes the writer.

#! /bin/sh
# FSQA Test No. 133
#
# Concurrent I/O to same file to ensure no deadlocks
#
#-----------------------------------------------------------------------
#  Copyright (c) 2006 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=lachlan@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()
{
    _cleanup_testdir
}

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

# real QA test starts here
_supported_fs xfs
_supported_os Linux IRIX

_setup_testdir

echo "Buffered writer, buffered reader"
xfs_io -f -d -c 'pwrite -q -b 64k 0 512m' $testdir/io_test
xfs_io -f -c 'pwrite -q -b 64k 0 512m' $testdir/io_test &
xfs_io -c 'pread -q -b 64k 0 512m' $testdir/io_test
wait
rm $testdir/io_test

echo "Direct writer, buffered reader"
xfs_io -f -d -c 'pwrite -q -b 64k 0 512m' $testdir/io_test
xfs_io -f -d -c 'pwrite -q -b 64k 0 512m' $testdir/io_test &
xfs_io -c 'pread -q -b 64k 0 512m' $testdir/io_test
wait
rm $testdir/io_test

echo "Buffered writer, direct reader"
xfs_io -f -d -c 'pwrite -q -b 64k 0 512m' $testdir/io_test
xfs_io -f -c 'pwrite -q -b 64k 0 512m' $testdir/io_test &
xfs_io -d -c 'pread -q -b 64k 0 512m' $testdir/io_test
wait
rm $testdir/io_test

echo "Direct writer, direct reader"
xfs_io -f -d -c 'pwrite -q -b 64k 0 512m' $testdir/io_test
xfs_io -f -d -c 'pwrite -q -b 64k 0 512m' $testdir/io_test &
xfs_io -d -c 'pread -q -b 64k 0 512m' $testdir/io_test
wait
rm $testdir/io_test

status=0
exit