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https://github.com/linux-apfs/apfstests.git
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Pavel Reichl
91c239fae9
exFAT's access time has 2s granularity and is rounded down. This can cause problems, e.g.: if real access times are: time1=2 and time2=7, then 7 - 2 = 5; but exfat_atime(7) - exfat_atime(2) => 6 - 2 = 4 which is less than expected delay. To fix this, even (delay - 1s) should be considered as a valid result for exFAT. Signed-off-by: Pavel Reichl <preichl@redhat.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
67 lines
1.3 KiB
Bash
Executable File
67 lines
1.3 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
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#
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# FS QA Test No. 192
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#
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# Simple test of atime
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# - ensure it is persistent after unmount
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# - check updated time by correct amount
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "exit \$status" 0 1 2 3 15
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_access_time()
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{
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stat -c %X $1
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs generic
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_require_test
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_require_atime
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delay=5
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testfile=$TEST_DIR/testfile
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rm -f $testfile
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rm -f $seqres.full
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echo test >$testfile
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time1=`_access_time $testfile | tee -a $seqres.full`
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echo "sleep for $delay seconds"
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sleep $delay # sleep to allow time to move on for access
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cat $testfile
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time2=`_access_time $testfile | tee -a $seqres.full`
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cd /
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_test_cycle_mount
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time3=`_access_time $testfile | tee -a $seqres.full`
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delta1=`expr $time2 - $time1`
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delta2=`expr $time3 - $time1`
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min_tol=0
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if [ "$FSTYP" = "exfat" ]; then
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min_tol=1
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fi
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# tolerate an atime up to 2s later than the ideal case
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_within_tolerance "delta1" $delta1 $delay $min_tol 2 -v
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_within_tolerance "delta2" $delta2 $delta1 0 0 -v
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# success, all done
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status=0
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exit
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