stress2: Added a tmpfs regression test for Bug 223015

tools/test/stress2/misc/tmpfs25.sh

@@ -0,0 +1,86 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+# Regression test for:
+# Bug 223015 - [tmpfs] [patch] tmpfs does not support sparse files
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+. ../default.cfg
+
+set -eu
+prog=$(basename "$0" .sh)
+cont=/tmp/$prog.cont
+sync=/tmp/$prog.sync
+mount | grep -q "on $mntpoint " && umount $mntpoint
+mount -t tmpfs -o size=100m dummy $mntpoint
+iused=`df $mntpoint | tail -1 | awk '{print $3}'`
+
+list="1m 10m 40m 45m 49m 50m 60m 100m 1g 4g"
+r=0
+for s in $list; do
+	truncate -s $s $mntpoint/sparse || {
+		echo "truncate -s $s failed"
+		r=1; break 2
+	}
+	rm $mntpoint/sparse || break
+	used=`df $mntpoint | tail -1 | awk '{print $3}'`
+	[ $used -ne $iused ] && {
+		echo "truncate -s $s test: $iused / $used"; r=1; break; }
+done
+
+touch $cont
+for i in `jot 1000`; do
+	[ $r -ne 0 ] && break
+	file=$mntpoint/sparse.$i
+	for s in $list; do
+		[ ! -f $cont ] && break
+		for n in `jot 300`; do [ -f $sync ] && break; sleep .2; done
+		truncate -s $s $file || {
+			echo "truncate -s $s failed"
+			rm -f $cont
+			break
+		}
+		[ -f $file ] || { echo "No file $file"; break; }
+		rm $file || break
+	done &
+done
+touch $sync
+wait
+
+used=`df $mntpoint | tail -1 | awk '{print $3}'`
+if [ $used -ne $iused ]; then
+	[ `ls -al $mntpoint | wc -l` -gt 3 ] &&
+	    ls -al $mntpoint | head -10
+	df -i $mntpoint
+	fstat -f $mntpoint
+fi
+umount $mntpoint
+rm -f $cont $sync
+
+exit $r