--- /dev/null
+#! /bin/bash
+# FS QA Test No. 274
+#
+# preallocation test
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2011-2012 Fujitsu, 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
+#
+#-----------------------------------------------------------------------
+#
+#creator
+owner=wu.bo@cn.fujitsu.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=0 # success is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $SCRATCH_MNT/* $tmp.*
+ _scratch_unmount
+}
+
+. ./common.rc
+. ./common.filter
+
+# real QA test starts here
+_supported_fs generic
+_supported_os IRIX Linux
+_require_scratch
+
+echo "------------------------------"
+echo "preallocation test"
+echo "------------------------------"
+
+rm -f $seq.full
+
+umount $SCRATCH_DEV 2>/dev/null
+_scratch_mkfs_sized $((1 * 1024 * 1024 * 1024)) >>$seq.full 2>&1
+_scratch_mount
+
+rm -rf $SCRATCH_MNT/*
+cd $SCRATCH_MNT
+dd if=/dev/zero of=test bs=4K count=1 >/dev/null 2>&1
+if [ $? -ne 0 ]
+then
+ echo "create file err"
+ status=1
+ exit
+fi
+
+fallocate -n -o 4K -l 1M test >/dev/null 2>&1
+if [ $? -ne 0 ]
+then
+ echo "fallocate file err"
+ status=1
+ exit
+fi
+
+dd if=/dev/zero of=tmp1 bs=1M >/dev/null 2>&1
+dd if=/dev/zero of=tmp2 bs=4K >/dev/null 2>&1
+sync
+
+dd if=/dev/zero of=test seek=1 bs=4K count=2 conv=notrunc >/dev/null 2>&1
+if [ $? -ne 0 ]
+then
+ echo "fill prealloc range err"
+ status=1
+ exit
+fi
+
+echo "done"
+exit