2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016 Red Hat Inc. All Rights Reserved.
7 # Test mount shared subtrees, verify the bind semantics:
9 # ---------------------------------------------------------------------------
10 # | BIND MOUNT OPERATION |
11 # |**************************************************************************
12 # |source(A)->| shared | private | slave | unbindable |
16 # |**************************************************************************
17 # | shared | shared | shared | shared & slave | invalid |
19 # |non-shared| shared | private | slave | invalid |
20 # ***************************************************************************
23 seqres=$RESULT_DIR/$seq
24 echo "QA output created by $seq"
28 status=1 # failure is the default!
29 trap "_cleanup; exit \$status" 0 1 2 3 15
36 # make sure there's no bug cause dentry isn't be freed
40 # get standard environment, filters and checks
44 # remove previous $seqres.full before test
47 # real QA test starts here
51 _require_local_device $SCRATCH_DEV
57 $FSSTRESS_PROG -z -n 50 -p 3 \
74 # prepare some mountpoint dir
75 MNTHEAD=$TEST_DIR/$seq
77 mkdir $MNTHEAD 2>>$seqres.full
86 findmnt -n -o TARGET,SOURCE $SCRATCH_DEV | \
87 sed -e "s;$mpA;mpA;g" \
91 _filter_spaces | _filter_testdir_and_scratch | sort
99 _scratch_mkfs >$seqres.full 2>&1
100 _get_mount -t $FSTYP $SCRATCH_DEV $MNTHEAD
101 $MOUNT_PROG --make-"${type}" $MNTHEAD
102 mkdir $mpA $mpB $mpC $mpD
108 rm -rf $mpA $mpB $mpC $mpD
118 echo "bind $source on $dest"
119 _get_mount -t $FSTYP $SCRATCH_DEV $mpA
120 mkdir -p $mpA/dir 2>/dev/null
121 $MOUNT_PROG --make-shared $mpA
122 _get_mount --bind $mpA $mpB
123 $MOUNT_PROG --make-"$source" $mpB
124 # maybe unbindable at here
125 _get_mount --bind $mpB $mpC 2>/dev/null
126 if [ $? -ne 0 ]; then
131 _get_mount --bind $mpC $mpD
132 for m in $mpA $mpB $mpC $mpD; do
133 _get_mount -t $FSTYP $SCRATCH_DEV $m/dir
145 bind_run shared shared
146 bind_run slave shared
147 bind_run private shared
148 bind_run unbindable shared
150 bind_run shared slave
152 bind_run private slave
153 bind_run unbindable slave
155 bind_run shared private
156 bind_run slave private
157 bind_run private private
158 bind_run unbindable private