4 # Concurrent I/O to same file to ensure no deadlocks
6 #-----------------------------------------------------------------------
7 # Copyright (c) 2006 Silicon Graphics, Inc. All Rights Reserved.
9 # This program is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU General Public License as
11 # published by the Free Software Foundation.
13 # This program is distributed in the hope that it would be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write the Free Software Foundation,
20 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
26 echo "QA output created by $seq"
30 status=1 # failure is the default!
31 trap "_cleanup; exit \$status" 0 1 2 3 15
38 # get standard environment, filters and checks
42 # real QA test starts here
44 _supported_os Linux IRIX
48 echo "Buffered writer, buffered reader"
49 xfs_io -F -f -d -c 'pwrite -b 64k 0 512m' $testdir/io_test > /dev/null
50 xfs_io -F -f -c 'pwrite -b 64k 0 512m' $testdir/io_test >/dev/null &
51 xfs_io -F -c 'pread -b 64k 0 512m' $testdir/io_test > /dev/null
55 echo "Direct writer, buffered reader"
56 xfs_io -F -f -d -c 'pwrite -b 64k 0 512m' $testdir/io_test > /dev/null
57 xfs_io -F -f -d -c 'pwrite -b 64k 0 512m' $testdir/io_test >/dev/null &
58 xfs_io -F -c 'pread -b 64k 0 512m' $testdir/io_test > /dev/null
62 echo "Buffered writer, direct reader"
63 xfs_io -F -f -d -c 'pwrite -b 64k 0 512m' $testdir/io_test > /dev/null
64 xfs_io -F -f -c 'pwrite -b 64k 0 512m' $testdir/io_test >/dev/null &
65 xfs_io -F -d -c 'pread -b 64k 0 512m' $testdir/io_test > /dev/null
69 echo "Direct writer, direct reader"
70 xfs_io -F -f -d -c 'pwrite -b 64k 0 512m' $testdir/io_test > /dev/null
71 xfs_io -F -f -d -c 'pwrite -b 64k 0 512m' $testdir/io_test >/dev/null &
72 xfs_io -F -d -c 'pread -b 64k 0 512m' $testdir/io_test > /dev/null