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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
#
. ./common/preamble
_begin_fstest auto quick dir
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_test
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
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