4 # Test remount behaviour
5 # Initial motivation was for pv#985710 and pv#983964
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
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 #-----------------------------------------------------------------------
27 echo "QA output created by $seq"
31 status=1 # failure is the default!
32 trap "_cleanup; exit \$status" 0 1 2 3 15
33 tag="added by qa $seq"
38 umount $SCRATCH_MNT 2>/dev/null
39 _putback_scratch_fstab
45 sed -e "s#$SCRATCH_DEV#SCRATCH_DEV#" \
46 -e "s#$SCRATCH_MNT#SCRATCH_MNT#" \
47 -e "s#,context.*s0\"##"
52 # assumes that we don't have extra ops in fstab
53 _mount | grep $SCRATCH_MNT | _scratch_filter
57 # mount(8) adds all options from mtab and fstab to the mount command
58 # line. So the filesystem either must not reject any option at all
59 # if it can't change it, or compare the value on the command line
60 # to the existing state and only reject it if it would change
61 # something that can't be changed.
63 # Test this behaviour by mounting a filesystem read-only with a non-
64 # default option and then try to remount it rw.
66 # note that mount(8) doesn't add the options when specifying both the
67 # device node and mount point, so test out the various mounting
72 # use filestreams as a hopefully never default option
74 echo "try remount ro,filestreams -> rw,filestreams"
76 _scratch_mount -o ro,filestreams
77 [ $? -eq 0 ] || echo "ro,filestreams mount failed unexpectedly"
80 for dev_mnt in $SCRATCH_DEV $SCRATCH_MNT "$SCRATCH_DEV $SCRATCH_MNT"; do
81 echo "mounting given: $dev_mnt" | _scratch_filter
82 _mount -o remount,rw $dev_mnt
83 [ $? -eq 0 ] || echo "remount rw failed"
90 echo "try remount ro,noattr2 -> rw,attr2"
92 _scratch_mount -o ro,noattr2
93 [ $? -eq 0 ] || echo "ro,noattr2 mount failed unexpectedly"
96 for dev_mnt in $SCRATCH_DEV $SCRATCH_MNT "$SCRATCH_DEV $SCRATCH_MNT"; do
97 echo "mounting given: $dev_mnt" | _scratch_filter
98 _mount -o remount,rw,attr2 $dev_mnt
99 [ $? -eq 0 ] || echo "remount rw,attr2 failed"
107 # make sure we really can write to a filesystem after remount,rw
109 _test_remount_write()
112 echo "try touching file after remount ro -> rw with options"
115 [ $? -eq 0 ] || echo "mount (1) failed unexpectedly"
117 touch $SCRATCH_MNT/foobar
118 [ $? -eq 0 ] || echo "touch (1) failed unexpectedly"
123 [ $? -eq 0 ] || echo "mount (2) failed unexpectedly"
125 _mount -o remount,rw,filestreams $SCRATCH_MNT
126 [ $? -eq 0 ] || echo "remount failed unexpectedly"
128 touch $SCRATCH_MNT/foobar
129 [ $? -eq 0 ] || echo "touch (2) failed unexpectedly"
135 # barrier is the only option we can change besides ro<->rw which is partially
136 # handled by the VFS and tested elsewhere. Make sure mount accepts going
137 # from barrier (which also is the default) to nobarrier and back.
139 _test_remount_barrier()
142 echo "Do remount barrier tests"
145 # mention barrier explicitly even if it's currently the default just to be sure
146 _scratch_mount -o barrier
147 [ $? -eq 0 ] || echo "mount failed unexpectedly!"
150 _scratch_mount -o remount,nobarrier
151 [ $? -eq 0 ] || _fail "remount nobarrier failed"
154 _scratch_mount -o remount,barrier
155 [ $? -eq 0 ] || _fail "remount barrier failed"
163 # Example fstab entry
164 # /dev/sdb2 /mnt/scratch1 xfs defaults 0 0
168 # comment out any existing SCRATCH_DEV
169 $SED_PROG -i "s;$SCRATCH_DEV;#$SCRATCH_DEV;" /etc/fstab
171 # add our fstab entry
172 echo "$SCRATCH_DEV $SCRATCH_MNT xfs defaults 0 0 # $tag" >> /etc/fstab
175 _modify_scratch_fstab()
179 # modify our fstab entry that we added
180 # modify opts by looking for last word which has non-space chars
181 $SED_PROG -i "s; [^ ]* 0 0 # $tag; $opts 0 0 # $tag;" /etc/fstab
184 _putback_scratch_fstab()
186 # uncomment out any existing SCRATCH_DEV
187 $SED_PROG -i "s;#$SCRATCH_DEV;$SCRATCH_DEV;" /etc/fstab
189 # remove the one we added at the end
190 $SED_PROG -i "/# $tag/d" /etc/fstab
193 # get standard environment, filters and checks
197 # real QA test starts here
207 _scratch_mkfs_xfs | _filter_mkfs 2>/dev/null
214 echo "add noikeep to fstab for scratch"
215 _modify_scratch_fstab noikeep # noikeep is not default for non dmapi
218 _putback_scratch_fstab
219 _test_remount_barrier