4 # Check out various mount/remount/unmount scenarious on a read-only blockdev.
6 #-----------------------------------------------------------------------
7 # Copyright (c) 2009 Christoph Hellwig.
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
21 #-----------------------------------------------------------------------
25 echo "QA output created by $seq"
29 status=1 # failure is the default!
34 blockdev --setrw $SCRATCH_DEV
36 trap "_cleanup; exit \$status" 0 1 2 3 15
38 # get standard environment, filters and checks
42 # real QA test starts here
48 _scratch_mkfs_xfs >/dev/null 2>&1
51 # Mark the device read-only
53 echo "setting device read-only"
54 blockdev --setro $SCRATCH_DEV
57 # Mount it, and make sure we can't write to it, and we can unmount it again
59 echo "mounting read-only block device:"
60 _scratch_mount 2>&1 | _filter_scratch
62 echo "touching file on read-only filesystem (should fail)"
63 touch $SCRATCH_MNT/foo 2>&1 | _filter_scratch
66 # Apparently this used to be broken at some point:
67 # http://oss.sgi.com/bugzilla/show_bug.cgi?id=807
69 echo "unmounting read-only filesystem"
70 umount $SCRATCH_MNT 2>&1 | _filter_scratch
72 echo "setting device read-write"
73 blockdev --setrw $SCRATCH_DEV
75 echo "mounting read-write block device:"
76 _scratch_mount 2>&1 | _filter_scratch
79 touch $SCRATCH_MNT/{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}
82 src/godown -f $SCRATCH_MNT
84 echo "unmounting shutdown filesystem:"
85 umount $SCRATCH_MNT 2>&1 | _filter_scratch
87 echo "setting device read-only"
88 blockdev --setro $SCRATCH_DEV
91 # Mounting a filesystem that requires log-recovery fails unless
92 # -o norecovery is used.
94 echo "mounting filesystem that needs recovery on a read-only device:"
95 _scratch_mount 2>&1 | _filter_scratch
97 echo "unmounting read-only filesystem"
98 umount $SCRATCH_MNT 2>&1 | _filter_scratch
101 # This is the way out if the underlying device really is read-only.
102 # Doesn't mean it's a good idea in practive, more a last resort
103 # data recovery hack.
105 echo "mounting filesystem with -o norecovery on a read-only device:"
106 _scratch_mount -o norecovery 2>&1 | _filter_scratch
108 echo "unmounting read-only filesystem"
109 umount $SCRATCH_MNT 2>&1 | _filter_scratch
111 echo "setting device read-write"
112 blockdev --setrw $SCRATCH_DEV
115 # But log recovery is performed when mount with -o ro as long as
116 # the underlying device is not write protected.
118 echo "mounting filesystem that needs recovery with -o ro:"
119 _scratch_mount -o ro 2>&1 | _filter_scratch