xfstest: preallocate file space greater then MAXEXTLEN

Index: b/288
===================================================================
@@ -0,0 +1,88 @@
+#! /bin/bash
+# FS QA Test No. 288
+#
+# test preallocation using value greater the maximum size for extent.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2012 SGI.  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
[email protected]
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+# real QA test starts here
+_supported_fs xfs
+_supported_os Linux
+
+_require_scratch
+
+rm -f $seq.full
+# Use a small block size so we do not need to much disk
+# space to get more the 2^21 block. Since the AG size
+# also need to be bigger then 2^21 block. let's create
+# a 4Gig filesystem with 1 AG.
+if ! _scratch_mkfs_xfs -b size=512 \
+    -d agcount=1,size=4294967296 >> $seq.full 2>&1
+then
+    echo "!!! failed to mkfs on $SCRATCH_DEV"
+    exit ${status}
+fi
+
+_scratch_mount
+
+if ! cd ${SCRATCH_MNT}
+then
+    echo "!!! failed to cd in SCRATCH_MNT"
+    exit ${status}
+fi
+
+mkdir testdir
+cd testdir
+xfs_io -c 'extsize 1m' .
+xfs_io -f -c 'resvsp 0 1g' testfile
+rm testfile
+xfs_io -f -c 'resvsp 512 1g' testfile
+rm testfile
+
+
+xfs_io -c 'extsize 4m' .
+xfs_io -f -c 'resvsp 0 1g' testfile
+rm testfile
+xfs_io -f -c 'resvsp 512 1g' testfile
+rm testfile
+
+
+cd "$here"
+
+_scratch_unmount
+echo "Silence is golden"
+
+# success, all done
+status=0
+exit

Index: b/288.out
===================================================================
@@ -0,0 +1,2 @@
+QA output created by 288
+Silence is golden

Index: b/group
===================================================================
@@ -406,3 +406,4 @@
 285 auto rw
 286 other
 287 auto rw
+288 auto quick rw