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apfstests/tests/overlay/012
T
Darrick J. Wong a860a167d8 common: kill _supported_os
fstests only supports Linux, so get rid of this unnecessary predicate.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2020-09-21 01:16:50 +08:00

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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016 Red Hat Inc. All Rights Reserved.
#
# FS QA Test 012
#
# The upper dentry may become stale before we remove it from
# overlay, e.g. file was removed from upperdir directly, which
# triggered warning/oops in ovl_remove_and_whiteout().
#
# Commit cfc9fde0b07c ("ovl: verify upper dentry in
# ovl_remove_and_whiteout()") fixed this issue.
#
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 15
_cleanup()
{
cd /
rm -f $tmp.*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
rm -f $seqres.full
# real QA test starts here
_supported_fs overlay
_require_scratch
# remove all files from previous runs
_scratch_mkfs
lowerdir=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER
upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
mkdir -p $lowerdir/test
_scratch_mount
# remove test file to create a whiteout
rmdir $SCRATCH_MNT/test
# create the test file again and remove it from upperdir directly, make the
# upper dentry become stale
touch $SCRATCH_MNT/test
rm $upperdir/test
# try to remove test file from overlay dir, trigger ovl_remove_and_whiteout, it
# should see stale file handle error, and no warnings/oops are expected.
rm $SCRATCH_MNT/test 2>&1 | _filter_scratch
# success, all done
status=0
exit