4 # Test remount behaviour
5 # Initial motivation was for pv#985710 and pv#983964
7 #-----------------------------------------------------------------------
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10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #-----------------------------------------------------------------------
29 echo "QA output created by $seq"
33 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
35 tag="added by qa $seq"
40 umount $SCRATCH_MNT 2>/dev/null
41 _putback_scratch_fstab
47 sed -e "s#$SCRATCH_DEV#SCRATCH_DEV#" \
48 -e "s#$SCRATCH_MNT#SCRATCH_MNT#" \
49 -e "s#,context.*s0\"##"
54 # assumes that we don't have extra ops in fstab
55 _mount | grep $SCRATCH_MNT | _scratch_filter
59 # mount(8) adds all options from mtab and fstab to the mount command
60 # line. So the filesystem either must not reject any option at all
61 # if it can't change it, or compare the value on the command line
62 # to the existing state and only reject it if it would change
63 # something that can't be changed.
65 # Test this behaviour by mounting a filesystem read-only with a non-
66 # default option and then try to remount it rw.
68 # note that mount(8) doesn't add the options when specifying both the
69 # device node and mount point, so test out the various mounting
74 # use filestreams as a hopefully never default option
76 echo "try remount ro,filestreams -> rw,filestreams"
78 _scratch_mount -o ro,filestreams
79 [ $? -eq 0 ] || echo "ro,filestreams mount failed unexpectedly"
82 for dev_mnt in $SCRATCH_DEV $SCRATCH_MNT "$SCRATCH_DEV $SCRATCH_MNT"; do
83 echo "mounting given: $dev_mnt" | _scratch_filter
84 _mount -o remount,rw $dev_mnt
85 [ $? -eq 0 ] || echo "remount rw failed"
92 echo "try remount ro,noattr2 -> rw,attr2"
94 _scratch_mount -o ro,noattr2
95 [ $? -eq 0 ] || echo "ro,noattr2 mount failed unexpectedly"
98 for dev_mnt in $SCRATCH_DEV $SCRATCH_MNT "$SCRATCH_DEV $SCRATCH_MNT"; do
99 echo "mounting given: $dev_mnt" | _scratch_filter
100 _mount -o remount,rw,attr2 $dev_mnt
101 [ $? -eq 0 ] || echo "remount rw,attr2 failed"
109 # make sure we really can write to a filesystem after remount,rw
111 _test_remount_write()
114 echo "try touching file after remount ro -> rw with options"
117 [ $? -eq 0 ] || echo "mount (1) failed unexpectedly"
119 touch $SCRATCH_MNT/foobar
120 [ $? -eq 0 ] || echo "touch (1) failed unexpectedly"
125 [ $? -eq 0 ] || echo "mount (2) failed unexpectedly"
127 _mount -o remount,rw,filestreams $SCRATCH_MNT
128 [ $? -eq 0 ] || echo "remount failed unexpectedly"
130 touch $SCRATCH_MNT/foobar
131 [ $? -eq 0 ] || echo "touch (2) failed unexpectedly"
137 # barrier is the only option we can change besides ro<->rw which is partially
138 # handled by the VFS and tested elsewhere. Make sure mount accepts going
139 # from barrier (which also is the default) to nobarrier and back.
141 _test_remount_barrier()
144 echo "Do remount barrier tests"
147 # mention barrier explicitly even if it's currently the default just to be sure
148 _scratch_mount -o barrier
149 [ $? -eq 0 ] || echo "mount failed unexpectedly!"
152 _scratch_mount -o remount,nobarrier
153 [ $? -eq 0 ] || _fail "remount nobarrier failed"
156 _scratch_mount -o remount,barrier
157 [ $? -eq 0 ] || _fail "remount barrier failed"
165 # Example fstab entry
166 # /dev/sdb2 /mnt/scratch1 xfs defaults 0 0
170 # comment out any existing SCRATCH_DEV
171 $SED_PROG -i "s;$SCRATCH_DEV;#$SCRATCH_DEV;" /etc/fstab
173 # add our fstab entry
174 echo "$SCRATCH_DEV $SCRATCH_MNT xfs defaults 0 0 # $tag" >> /etc/fstab
177 _modify_scratch_fstab()
181 # modify our fstab entry that we added
182 # modify opts by looking for last word which has non-space chars
183 $SED_PROG -i "s; [^ ]* 0 0 # $tag; $opts 0 0 # $tag;" /etc/fstab
186 _putback_scratch_fstab()
188 # uncomment out any existing SCRATCH_DEV
189 $SED_PROG -i "s;#$SCRATCH_DEV;$SCRATCH_DEV;" /etc/fstab
191 # remove the one we added at the end
192 $SED_PROG -i "/# $tag/d" /etc/fstab
195 # get standard environment, filters and checks
199 # real QA test starts here
209 _scratch_mkfs_xfs | _filter_mkfs 2>/dev/null
216 echo "add noikeep to fstab for scratch"
217 _modify_scratch_fstab noikeep # noikeep is not default for non dmapi
220 _putback_scratch_fstab
221 _test_remount_barrier