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https://github.com/linux-apfs/apfstests.git
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overlay: Add tests for overlay metadata only copy up feature
Add tests for metadata only copy up feature. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Vivek Goyal
Eryu Guan
@@ -10,6 +10,7 @@ export OVL_XATTR_IMPURE="trusted.overlay.impure"
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export OVL_XATTR_ORIGIN="trusted.overlay.origin"
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export OVL_XATTR_NLINK="trusted.overlay.nlink"
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export OVL_XATTR_UPPER="trusted.overlay.upper"
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export OVL_XATTR_METACOPY="trusted.overlay.metacopy"
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# helper function to do the actual overlayfs mount operation
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_overlay_mount_dirs()
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Executable
+289
@@ -0,0 +1,289 @@
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#! /bin/bash
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# FS QA Test No. 060
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#
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# Test metadata only copy up functionality.
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#
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#-----------------------------------------------------------------------
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# Copyright (C) 2018 Red Hat, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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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 "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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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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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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_supported_fs overlay
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_supported_os Linux
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# We use non-default scratch underlying overlay dirs, we need to check
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# them explicity after test.
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_require_scratch_nocheck
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_require_scratch_overlay_features index redirect_dir metacopy
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# remove all files from previous tests
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_scratch_mkfs
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# File size on lower
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lowername="lowerfile"
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lowerlink="lowerfile-link"
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lowerdata="lower"
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lowersize="4096"
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# Number of blocks allocated by filesystem on lower. Will be queried later.
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lowerblocks=""
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udirname="pureupper"
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ufile="upperfile"
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# Check metacopy xattr
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check_metacopy()
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{
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local target=$1 exist=$2
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local out_f target_f
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local msg
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out_f=$($GETFATTR_PROG --absolute-names --only-values -n \
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$OVL_XATTR_METACOPY $target 2>&1 | _filter_scratch)
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if [ "$exist" == "y" ];then
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[ "$out_f" == "" ] && return
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echo "Metacopy xattr does not exist on ${target}. stdout=$out_f"
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return
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fi
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if [ "$out_f" == "" ];then
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echo "Metacopy xattr exists on ${target} unexpectedly."
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return
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fi
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target_f=`echo $target | _filter_scratch`
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msg="$target_f: trusted.overlay.metacopy: No such attribute"
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[ "$out_f" == "$msg" ] && return
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echo "Error while checking xattr on ${target}. stdout=$out"
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}
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# Check redirect xattr
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check_redirect()
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{
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local target=$1
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local expect=$2
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value=$($GETFATTR_PROG --absolute-names --only-values -n \
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$OVL_XATTR_REDIRECT $target)
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[[ "$value" == "$expect" ]] || echo "Redirect xattr incorrect. Expected=\"$expect\", actual=\"$value\""
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}
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# Check size
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check_file_size()
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{
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local target=$1 expected_size=$2 actual_size
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actual_size=$(stat -c "%s" $target)
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[ "$actual_size" == "$expected_size" ] || echo "Expected file size $expected_size but actual size is $actual_size"
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}
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check_file_blocks()
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{
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local target=$1 expected_blocks=$2 nr_blocks
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nr_blocks=$(stat -c "%b" $target)
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[ "$nr_blocks" == "$expected_blocks" ] || echo "Expected $expected_blocks blocks but actual number of blocks is ${nr_blocks}."
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}
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check_file_contents()
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{
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local target=$1 expected=$2
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local actual target_f
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target_f=`echo $target | _filter_scratch`
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read actual<$target
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[ "$actual" == "$expected" ] || echo "Expected file $target_f contents to be \"$expected\" but actual contents are \"$actual\""
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}
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check_file_size_contents()
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{
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local target=$1 expected_size=$2 expected_content=$3
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check_file_size $target $expected_size
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check_file_contents $target $expected_content
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}
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mount_overlay()
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{
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local _lowerdir=$1
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_overlay_scratch_mount_dirs "$_lowerdir" $upperdir $workdir -o redirect_dir=on,index=on,metacopy=on
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}
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umount_overlay()
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{
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$UMOUNT_PROG $SCRATCH_MNT
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}
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# Assumes it is called with overlay mounted.
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test_common()
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{
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local _lowerdir=$1 _target=$2 _size=$3 _blocks=$4 _data="$5"
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local _redirect=$6
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echo "check properties of metadata copied up file"
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check_file_size_contents $SCRATCH_MNT/$_target $_size "$_data"
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check_file_blocks $SCRATCH_MNT/$_target $_blocks
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# Do a mount cycle and check size and contents again.
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echo "Unmount and Mount again"
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umount_overlay
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mount_overlay $_lowerdir
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echo "check properties of metadata copied up file"
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check_file_size_contents $SCRATCH_MNT/$_target $_size "$_data"
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check_file_blocks $SCRATCH_MNT/$_target $_blocks
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# Make sure copied up file is a metacopy file.
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umount_overlay
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check_metacopy $upperdir/$_target "y"
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check_file_size_contents $upperdir/$_target $_size ""
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[ -n "$_redirect" ] && check_redirect $upperdir/$_target "$_redirect"
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# Trigger data copy up and check absence of metacopy xattr.
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mount_overlay $_lowerdir
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$XFS_IO_PROG -c "open -a $SCRATCH_MNT/$_target"
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echo "check properties of data copied up file"
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check_file_size_contents $SCRATCH_MNT/$_target $_size "$_data"
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umount_overlay
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check_metacopy $upperdir/$_target "n"
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check_file_size_contents $upperdir/$_target $_size "$_data"
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}
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create_basic_files()
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{
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_scratch_mkfs
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mkdir -p $lowerdir $lowerdir2 $upperdir $workdir $workdir2
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mkdir -p $upperdir/$udirname
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echo "$lowerdata" > $lowerdir/$lowername
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chmod 600 $lowerdir/$lowername
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# Create a file of size lowersize.
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$XFS_IO_PROG -c "falloc 0 $lowersize" $lowerdir/$lowername
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$XFS_IO_PROG -c "fsync" $lowerdir/$lowername
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# Query number of lower
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lowerblocks=$(stat -c "%b" $lowerdir/$lowername)
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}
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create_lower_link()
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{
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ln $lowerdir/$lowername $lowerdir/$lowerlink
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}
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prepare_midlayer()
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{
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_scratch_mkfs
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create_basic_files
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# Create midlayer
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_overlay_scratch_mount_dirs $lowerdir $lowerdir2 $workdir2 -o redirect_dir=on,index=on,metacopy=on
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# Trigger a metacopy
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chmod 400 $SCRATCH_MNT/$lowername
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umount_overlay
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}
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# Create test directories
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lowerdir=$OVL_BASE_SCRATCH_MNT/lower
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lowerdir2=$OVL_BASE_SCRATCH_MNT/lower2
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upperdir=$OVL_BASE_SCRATCH_MNT/upper
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workdir=$OVL_BASE_SCRATCH_MNT/workdir
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workdir2=$OVL_BASE_SCRATCH_MNT/workdir2
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# Tests start here
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echo "== Check Simple Metacopy =="
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create_basic_files
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mount_overlay $lowerdir
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chmod 400 $SCRATCH_MNT/$lowername
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test_common $lowerdir $lowername $lowersize $lowerblocks "$lowerdata"
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# Test midlayer metacopy
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echo -e "\n== Check Midlayer Metacopy =="
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prepare_midlayer
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mount_overlay "$lowerdir2:$lowerdir"
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chmod 400 $SCRATCH_MNT/$lowername
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test_common "$lowerdir2:$lowerdir" $lowername $lowersize $lowerblocks \
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"$lowerdata"
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# Test Rename Redirect
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echo -e "\n== Check Rename Redirect =="
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create_basic_files
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mount_overlay $lowerdir
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mv $SCRATCH_MNT/$lowername $SCRATCH_MNT/$ufile
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test_common $lowerdir $ufile $lowersize $lowerblocks "$lowerdata" "$lowername"
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# Test midlayer rename redirect
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echo -e "\n== Check Midlayer Rename Redirect =="
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prepare_midlayer
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mount_overlay "$lowerdir2:$lowerdir"
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mv $SCRATCH_MNT/$lowername $SCRATCH_MNT/$ufile
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test_common "$lowerdir2:$lowerdir" $ufile $lowersize $lowerblocks "$lowerdata" \
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"$lowername"
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# Test Link Redirect
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echo -e "\n== Check Link Redirect =="
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create_basic_files
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mount_overlay $lowerdir
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ln $SCRATCH_MNT/$lowername $SCRATCH_MNT/$udirname/$ufile
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test_common $lowerdir $udirname/$ufile $lowersize $lowerblocks "$lowerdata" \
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"/$lowername"
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# Test midlayer link redirect
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echo -e "\n== Check Midlayer Link Redirect =="
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prepare_midlayer
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mount_overlay "$lowerdir2:$lowerdir"
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ln $SCRATCH_MNT/$lowername $SCRATCH_MNT/$udirname/$ufile
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test_common "$lowerdir2:$lowerdir" $udirname/$ufile $lowersize $lowerblocks \
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"$lowerdata" "/$lowername"
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# Test lower link file gets absolute redirect upon rename
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echo -e "\n== Check Lower Link Rename Absolute Redirect =="
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create_basic_files
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create_lower_link
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mount_overlay $lowerdir
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mv $SCRATCH_MNT/$lowerlink $SCRATCH_MNT/$ufile
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test_common $lowerdir $ufile $lowersize $lowerblocks "$lowerdata" "/$lowerlink"
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# success, all done
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status=0
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exit
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@@ -0,0 +1,42 @@
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QA output created by 060
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== Check Simple Metacopy ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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== Check Midlayer Metacopy ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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== Check Rename Redirect ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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== Check Midlayer Rename Redirect ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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== Check Link Redirect ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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== Check Midlayer Link Redirect ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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== Check Lower Link Rename Absolute Redirect ==
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check properties of metadata copied up file
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Unmount and Mount again
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check properties of metadata copied up file
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check properties of data copied up file
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@@ -62,3 +62,4 @@
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057 auto quick redirect
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058 auto quick exportfs
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059 auto quick copyup
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060 auto quick metacopy
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