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
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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.
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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 seqres=$RESULT_DIR/$seq
26 echo "QA output created by $seq"
30 status=1 # failure is the default!
35 blockdev --setrw $SCRATCH_DEV
37 trap "_cleanup; exit \$status" 0 1 2 3 15
39 # get standard environment, filters and checks
43 # real QA test starts here
47 _require_scratch_nocheck
48 _require_scratch_shutdown
49 _require_local_device $SCRATCH_DEV
52 _scratch_mkfs >/dev/null 2>&1
55 # Mark the device read-only
57 echo "setting device read-only"
58 blockdev --setro $SCRATCH_DEV
61 # Mount it, and make sure we can't write to it, and we can unmount it again
63 echo "mounting read-only block device:"
64 _try_scratch_mount 2>&1 | _filter_ro_mount
66 echo "touching file on read-only filesystem (should fail)"
67 touch $SCRATCH_MNT/foo 2>&1 | _filter_scratch
70 # Apparently this used to be broken at some point:
71 # http://oss.sgi.com/bugzilla/show_bug.cgi?id=807
73 echo "unmounting read-only filesystem"
74 _scratch_unmount 2>&1 | _filter_scratch
76 echo "setting device read-write"
77 blockdev --setrw $SCRATCH_DEV
79 echo "mounting read-write block device:"
80 _try_scratch_mount 2>&1 | _filter_scratch
83 touch $SCRATCH_MNT/{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}
86 src/godown -f $SCRATCH_MNT
88 echo "unmounting shutdown filesystem:"
89 _scratch_unmount 2>&1 | _filter_scratch
91 echo "setting device read-only"
92 blockdev --setro $SCRATCH_DEV
95 # Mounting a filesystem that requires log-recovery fails unless
96 # -o norecovery is used.
98 echo "mounting filesystem that needs recovery on a read-only device:"
99 _try_scratch_mount 2>&1 | _filter_ro_mount
101 echo "unmounting read-only filesystem"
102 _scratch_unmount 2>&1 | _filter_scratch | _filter_ending_dot
105 # This is the way out if the underlying device really is read-only.
106 # Doesn't mean it's a good idea in practive, more a last resort
107 # data recovery hack.
109 echo "mounting filesystem with -o norecovery on a read-only device:"
110 _try_scratch_mount -o norecovery 2>&1 | _filter_ro_mount
112 echo "unmounting read-only filesystem"
113 _scratch_unmount 2>&1 | _filter_scratch
115 echo "setting device read-write"
116 blockdev --setrw $SCRATCH_DEV
119 # But log recovery is performed when mount with -o ro as long as
120 # the underlying device is not write protected.
122 echo "mounting filesystem that needs recovery with -o ro:"
123 _try_scratch_mount -o ro 2>&1 | _filter_scratch