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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. generic/003
#
# Tests the noatime, relatime, strictatime and nodiratime mount options.
# There is an extra check for Btrfs to ensure that the access time is
# never updated on read-only subvolumes. (Regression test for bug fixed
# with commit 93fd63c2f001ca6797c6b15b696a484b165b4800)
#
. ./common/preamble
_begin_fstest atime auto quick
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch
_require_atime
_require_relatime
if [ "$FSTYP" = "exfat" ]; then
# exfat's timestamp for access_time has double seconds granularity
access_delay=2.1
else
access_delay=1
fi
_stat() {
stat -c "%x;%y;%z" $1
}
_compare_stat_times() {
updated=$1 # 3 chars indicating if access, modify and
# change times should be updated (Y) or not (N)
IFS=';' read -a first_stat <<< "$2" # Convert first stat to array
IFS=';' read -a second_stat <<< "$3" # Convert second stat to array
test_step=$4 # Will be printed to output stream in case of an
# error, to make debugging easier
types=( access modify change )
for i in 0 1 2; do
if [ "${first_stat[$i]}" == "${second_stat[$i]}" ]; then
if [ "${updated:$i:1}" == "N" ]; then
continue;
fi
echo -n "ERROR: ${types[$i]} time has not been updated "
echo $test_step
elif [ "${updated:$i:1}" == "N" ]; then
echo -n "ERROR: ${types[$i]} time has changed "
echo $test_step
fi
done
}
_scratch_mkfs >> $seqres.full 2>&1 || _fail "mkfs failed"
_scratch_mount "-o relatime"
if [ "$FSTYP" = "btrfs" ]; then
TPATH=$SCRATCH_MNT/sub1
$BTRFS_UTIL_PROG subvolume create $TPATH > $seqres.full
else
TPATH=$SCRATCH_MNT
fi
mkdir $TPATH/dir1
echo "aaa" > $TPATH/dir1/file1
file1_stat_before_first_access=`_stat $TPATH/dir1/file1`
# Accessing file1 the first time
sleep $access_delay
cat $TPATH/dir1/file1 > /dev/null
file1_stat_after_first_access=`_stat $TPATH/dir1/file1`
_compare_stat_times YNN "$file1_stat_before_first_access" \
"$file1_stat_after_first_access" "after accessing file1 first time"
# Accessing file1 a second time
sleep $access_delay
cat $TPATH/dir1/file1 > /dev/null
file1_stat_after_second_access=`_stat $TPATH/dir1/file1`
_compare_stat_times NNN "$file1_stat_after_first_access" \
"$file1_stat_after_second_access" "after accessing file1 second time"
# Mounting with nodiratime option
_scratch_cycle_mount "nodiratime"
file1_stat_after_remount=`_stat $TPATH/dir1/file1`
_compare_stat_times NNN "$file1_stat_after_second_access" \
"$file1_stat_after_remount" "for file1 after remount"
# Creating dir2 and file2, checking directory stats
mkdir $TPATH/dir2
dir2_stat_before_file_creation=`_stat $TPATH/dir2`
sleep 1
echo "bbb" > $TPATH/dir2/file2
dir2_stat_after_file_creation=`_stat $TPATH/dir2`
_compare_stat_times NYY "$dir2_stat_before_file_creation" \
"$dir2_stat_after_file_creation" "for dir2 after file creation"
# Accessing file2
file2_stat_before_first_access=`_stat $TPATH/dir2/file2`
sleep $access_delay
cat $TPATH/dir2/file2 > /dev/null
file2_stat_after_first_access=`_stat $TPATH/dir2/file2`
_compare_stat_times YNN "$file2_stat_before_first_access" \
"$file2_stat_after_first_access" "after accessing file2"
dir2_stat_after_file_access=`_stat $TPATH/dir2`
_compare_stat_times NNN "$dir2_stat_after_file_creation" \
"$dir2_stat_after_file_access" "for dir2 after file access"
# Mounting with noatime option, creating a file and accessing it
_scratch_cycle_mount "noatime"
echo "ccc" > $TPATH/dir2/file3
file3_stat_before_first_access=`_stat $TPATH/dir2/file3`
sleep 1
cat $TPATH/dir2/file3 > /dev/null
file3_stat_after_first_access=`_stat $TPATH/dir2/file3`
_compare_stat_times NNN "$file3_stat_before_first_access" \
"$file3_stat_after_first_access" "after accessing file3 first time"
# Checking that the modify and change times are still updated
file1_stat_before_modify=`_stat $TPATH/dir1/file1`
sleep 1
echo "xyz" > $TPATH/dir1/file1
file1_stat_after_modify=`_stat $TPATH/dir1/file1`
_compare_stat_times NYY "$file1_stat_before_modify" \
"$file1_stat_after_modify" "after modifying file1"
# exfat does not support last metadata change timestamp
if [ "$FSTYP" != "exfat" ]; then
sleep 1
mv $TPATH/dir1/file1 $TPATH/dir1/file1_renamed
file1_stat_after_change=`_stat $TPATH/dir1/file1_renamed`
_compare_stat_times NNY "$file1_stat_after_modify" \
"$file1_stat_after_change" "after changing file1"
fi
# Mounting with strictatime option and
# accessing a previously created file twice
_scratch_cycle_mount "strictatime"
cat $TPATH/dir2/file3 > /dev/null
file3_stat_after_second_access=`_stat $TPATH/dir2/file3`
_compare_stat_times YNN "$file3_stat_after_first_access" \
"$file3_stat_after_second_access" "after accessing file3 second time"
sleep $access_delay
cat $TPATH/dir2/file3 > /dev/null
file3_stat_after_third_access=`_stat $TPATH/dir2/file3`
_compare_stat_times YNN "$file3_stat_after_second_access" \
"$file3_stat_after_third_access" "after accessing file3 third time"
# Btrfs only: Creating readonly snapshot. Access time should never
# be updated, even when the strictatime mount option is active
if [ "$FSTYP" = "btrfs" ]; then
SPATH=$SCRATCH_MNT/snap1
btrfs subvol snapshot -r $TPATH $SPATH >> $seqres.full
dir2_stat_readonly_before_access=`_stat $SPATH/dir2`
sleep 1
ls $SPATH/dir2 >> $seqres.full
cat $SPATH/dir2/file3 >> $seqres.full
dir2_stat_readonly_after_access=`_stat $SPATH/dir2`
_compare_stat_times NNN "$dir2_stat_readonly_before_access" \
"$dir2_stat_readonly_after_access" "for dir in readonly subvol"
file3_stat_readonly_after_access=`_stat $SPATH/dir2/file3`
_compare_stat_times NNN "$file3_stat_after_third_access" \
"$file3_stat_readonly_after_access" "for file in readonly subvol"
fi
# Mounting read-only. Access time should never be updated, despite the
# strictatime mount option.
sleep 1
dir2_stat_before_ro_mount=`_stat $TPATH/dir2`
file3_stat_before_ro_mount=`_stat $TPATH/dir2/file3`
_scratch_cycle_mount "ro,strictatime"
ls $TPATH/dir2 > /dev/null
cat $TPATH/dir2/file3 > /dev/null
dir2_stat_after_ro_mount=`_stat $TPATH/dir2`
_compare_stat_times NNN "$dir2_stat_before_ro_mount" \
"$dir2_stat_after_ro_mount" "for dir in read-only filesystem"
file3_stat_after_ro_mount=`_stat $TPATH/dir2/file3`
_compare_stat_times NNN "$file3_stat_before_ro_mount" \
"$file3_stat_after_ro_mount" "for file in read-only filesystem"
# success, all done
_scratch_unmount
echo "Silence is golden"
status=0
exit
|
