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apfstests/tests/generic/356
T
Omar Sandoval bd6d67ee59 generic: enable swapfile tests on Btrfs
Commit 8c96cfbfe5 ("generic/35[67]: disable swapfile tests on
Btrfs") disabled the swapfile tests on Btrfs because it did not
support swapfiles at the time. Now that we're adding support, we
want these tests to run, but they don't. _require_scratch_swapfile
always fails for Btrfs because swapfiles on Btrfs must be set to
nocow. After fixing that, generic/356 and generic/357 fail for the
same reason. After fixing _that_, both tests still fail because we
don't allow reflinking a non-checksummed extent (which nocow
implies) to a checksummed extent.

Add a helper for formatting a swap file which does the chattr, and
chattr the second file, which gets these tests running on kernels
supporting Btrfs swapfiles.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2018-05-23 10:53:04 +08:00

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#! /bin/bash
# FS QA Test No. 356
#
# Check that we can't reflink a swapfile.
#
#-----------------------------------------------------------------------
# Copyright (c) 2016 Oracle, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#-----------------------------------------------------------------------
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 7 15
_cleanup()
{
cd /
rm -rf $tmp.*
wait
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/reflink
# real QA test starts here
_supported_os Linux
_require_scratch_swapfile
_require_scratch_reflink
_require_cp_reflink
echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1
testdir=$SCRATCH_MNT/test-$seq
mkdir $testdir
blocks=160
blksz=65536
echo "Initialize file"
_format_swapfile "$testdir/file1" $((blocks * blksz))
swapon $testdir/file1
touch "$testdir/file2"
$CHATTR_PROG +C "$testdir/file2" >/dev/null 2>&1
echo "Try to reflink"
_cp_reflink $testdir/file1 $testdir/file2 2>&1 | _filter_scratch
echo "Tear it down"
swapoff $testdir/file1
# success, all done
status=0
exit