Files
apfstests/tests/generic/637
T
Amir Goldstein 2fd4a08b93 generic: Test readdir of modified directrory
Check that directory modifications to an open dir fd are observed
by a new open fd.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2021-05-16 22:37:36 +08:00

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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2021 CTERA Networks. All Rights Reserved.
#
# Check that directory modifications to an open dir are observed
# by a new open fd
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
_cleanup()
{
cd /
rm -f $tmp.*
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_test
rm -f $seqres.full
testdir=$TEST_DIR/test-$seq
rm -rf $testdir
mkdir $testdir
# Use small getdents bufsize to fit less than 10 entries
# stuct linux_dirent64 is 20 bytes not including d_name
bufsize=200
# Check readdir content of an empty dir changes when adding a new file
echo -e "\nCreate file 0 in an open dir:" >> $seqres.full
$here/src/t_dir_offset2 $testdir $bufsize "+0" 2>&1 >> $seqres.full || \
echo "Missing created file in open dir (see $seqres.full for details)"
# Create enough files to be returned in multiple gendents() calls.
# At least one of the files that we delete will not be listed in the
# first call, so we may encounter stale entries in following calls.
for n in {1..100}; do
touch $testdir/$n
done
# Check readdir content changes after removing files
for n in {1..10}; do
echo -e "\nRemove file ${n}0 in an open dir:" >> $seqres.full
$here/src/t_dir_offset2 $testdir $bufsize "-${n}0" 2>&1 >> $seqres.full || \
echo "Found unlinked files in open dir (see $seqres.full for details)"
done
# success, all done
echo "Silence is golden"
status=0