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review: xfstests/192 atime test

To: xfs-oss <xfs@xxxxxxxxxxx>
Subject: review: xfstests/192 atime test
From: Timothy Shimmin <tes@xxxxxxx>
Date: Tue, 11 Nov 2008 17:11:16 +1100
User-agent: Thunderbird 2.0.0.17 (Macintosh/20080914)
Attached simple atime test.
192.out and group file would be added appropriately.
Thanks.
--Tim
#! /bin/sh
# FS QA Test No. 192
#
# Simple test of atime - ensure it is persistent after unmount
#
#-----------------------------------------------------------------------
# Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=tes@xxxxxxxxxxxxxxxxxxxxx

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

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

_access_time()
{
        stat --format=%X $1
}

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

# real QA test starts here

_supported_fs xfs udf nfs
_supported_os Linux
delay=150

testfile=$TEST_DIR/testfile
rm -f $testfile
rm -f $seq.full

echo test >$testfile
time1=`_access_time $testfile | tee -a $seq.full` 

echo "sleep for $delay"
sleep $delay # sleep to allow time to move on for access
cat $testfile
time2=`_access_time $testfile | tee -a $seq.full` 

cd /
umount $TEST_DIR
mount $TEST_DIR
time3=`_access_time $testfile | tee -a $seq.full`

delta1=`expr $time2 - $time1`
delta2=`expr $time3 - $time1`

echo "delta1 - access time after sleep in-core: $delta1"
echo "delta2 - access time after sleep on-disk: $delta2"

# success, all done
status=0
exit
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