xfstests: move generic tests out of top level dir

And into tests/generic.  Tests were found simply by grepping for the
__supported_fs field in the tests.

Output starts to look like:

$ sudo ./check -g quick -r
FSTYP         -- xfs (debug)
PLATFORM      -- Linux/x86_64 test-1 3.5.0-rc5-dgc+
MKFS_OPTIONS  -- -f -bsize=4096 /dev/vdb
MOUNT_OPTIONS -- /dev/vdb /mnt/scratch

./242    1s
./183    2s
generic/236      1s
generic/014      1s
generic/258      0s
./096    1s
generic/245      0s
^C
Ran: ./242 ./183 generic/236 generic/014 generic/258 ./096 generic/245
Passed all 7 tests

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Phil White <pwhite@sgi.com>
[rjohnston@sgi.com added TOT changes]
Signed-off-by: Rich Johnston <rjohnston@sgi.com>

tests/generic/247

@@ -0,0 +1,78 @@
+#! /bin/bash
+# FS QA Test No. 247
+#
+# Test for race between direct I/O and mmap
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2010 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
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 7 15
+
+_cleanup()
+{
+    cd /
+    rm -f $tmp.* $testfile
+    wait
+}
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+# real QA test starts here
+
+# Modify as appropriate.
+_supported_fs generic
+_supported_os Linux
+
+testfile=$TEST_DIR/$seq.$$
+
+loops=500
+iosize=1048576
+
+# Initialise file
+dd if=/dev/zero of=$testfile bs=$iosize count=$loops &> /dev/null
+[ $? -ne 0 ] && exit
+sync
+	
+# Direct I/O overwriter
+dd if=/dev/zero of=$testfile oflag=direct bs=$iosize count=$loops conv=notrunc &> /dev/null &
+[ $? -ne 0 ] && exit
+
+# Mmap writer
+start=`expr $loops - 1`
+for i in `seq $start -1 0`
+do
+	offset=`expr $i \* $iosize`
+	$XFS_IO_PROG -F -f -c "mmap -w $offset $iosize" -c "mwrite $offset $iosize" $testfile
+	[ $? -ne 0 ] && exit
+done
+
+wait
+
+echo "Silence is golden."
+
+# success, all done
+status=0
+exit