xfstests: add simple splice test

We don't have any coverage of the splice functionality provided by
the kernel in xfstests. Add a simple test that uses the sendfile
operation built into xfs_io to copy a file ensure we at least
execute the code path in xfstests.

Signed-off-by: Dave Chinner <dchinner@redhat.com>

249

@@ -0,0 +1,62 @@
+#! /bin/bash
+# FS QA Test No. 249
+#
+# simple splice(2) test.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2011 Red Hat, 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=dchinner@redhat.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=tmp/$$
+status=1  # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+	cd /
+	rm -f $tmp.*
+	rm -f $SRC $DST
+	_cleanup_testdir
+}
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux
+_setup_testdir
+
+echo "Feel the serenity."
+
+SRC=$TEST_DIR/$seq.src
+DST=$TEST_DIR/$seq.dst
+
+$XFS_IO_PROG -f -c "pwrite -S 0xa5a55a5a 0 32768k" -c fsync $SRC > /dev/null 2>&1
+$XFS_IO_PROG -f -c "sendfile -i $SRC 0 32768k" -c fsync $DST > /dev/null 2>&1
+
+diff $SRC $DST
+
+status=$?
+exit

249.out

@@ -0,0 +1,2 @@
+QA output created by 249
+Feel the serenity.

group

@@ -362,3 +362,4 @@ deprecated
 246 auto quick rw
 247 auto quick rw
 248 auto quick rw 
+249 auto quick rw