tests/generic/410

   1 #! /bin/bash
   2 # FS QA Test 410
   3 #
   4 # Test mount shared subtrees, verify the state transition when use:
   5 #   --make-shared
   6 #   --make-slave
   7 #   --make-private
   8 #   --make-unbindable
   9 #
  10 # ------------------------------------------------------------------------
  11 # |             |make-shared |  make-slave  | make-private |make-unbindab|
  12 # --------------|------------|--------------|--------------|-------------|
  13 # |shared       |shared      |*slave/private|   private    | unbindable  |
  14 # |             |            |              |              |             |
  15 # |-------------|------------|--------------|--------------|-------------|
  16 # |slave        |shared      |    **slave   |    private   | unbindable  |
  17 # |             |and slave   |              |              |             |
  18 # |-------------|------------|--------------|--------------|-------------|
  19 # |shared       |shared      |    slave     |    private   | unbindable  |
  20 # |and slave    |and slave   |              |              |             |
  21 # |-------------|------------|--------------|--------------|-------------|
  22 # |private      |shared      |  **private   |    private   | unbindable  |
  23 # |-------------|------------|--------------|--------------|-------------|
  24 # |unbindable   |shared      |**unbindable  |    private   | unbindable  |
  25 # ------------------------------------------------------------------------
  26 #
  27 #-----------------------------------------------------------------------
  28 # Copyright (c) 2016 Red Hat Inc.  All Rights Reserved.
  29 #
  30 # This program is free software; you can redistribute it and/or
  31 # modify it under the terms of the GNU General Public License as
  32 # published by the Free Software Foundation.
  33 #
  34 # This program is distributed in the hope that it would be useful,
  35 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  36 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37 # GNU General Public License for more details.
  38 #
  39 # You should have received a copy of the GNU General Public License
  40 # along with this program; if not, write the Free Software Foundation,
  41 # Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  42 #-----------------------------------------------------------------------
  43 #
  44
  45 seq=`basename $0`
  46 seqres=$RESULT_DIR/$seq
  47 echo "QA output created by $seq"
  48
  49 here=`pwd`
  50 tmp=/tmp/$$
  51 status=1        # failure is the default!
  52 trap "_cleanup; exit \$status" 0 1 2 3 15
  53
  54 _cleanup()
  55 {
  56         cd /
  57         rm -f $tmp.*
  58         _clear_mount_stack
  59         # make sure there's no bug cause dentry isn't be freed
  60         rm -rf $MNTHEAD
  61 }
  62
  63 # get standard environment, filters and checks
  64 . ./common/rc
  65 . ./common/filter
  66
  67 # remove previous $seqres.full before test
  68 rm -f $seqres.full
  69
  70 # real QA test starts here
  71 _supported_fs generic
  72 _supported_os Linux
  73 _require_test
  74 _require_scratch
  75 _require_local_device $SCRATCH_DEV
  76
  77 fs_stress()
  78 {
  79         local target=$1
  80
  81         $FSSTRESS_PROG -z -n 50 -p 3 \
  82                        -f creat=5 \
  83                        -f mkdir=5 \
  84                        -f link=2 \
  85                        -f rename=1 \
  86                        -f rmdir=2 \
  87                        -f unlink=1 \
  88                        -f symlink=1 \
  89                        -f write=1 \
  90                        -f read=1 \
  91                        -f chown=1 \
  92                        -f getdents=1 \
  93                        -f fiemap=1 \
  94                        -d $target >/dev/null
  95         sync
  96 }
  97
  98 # prepare some mountpoint dir
  99 MNTHEAD=$TEST_DIR/$seq
 100 rm -rf $MNTHEAD
 101 mkdir $MNTHEAD 2>>$seqres.full
 102 mpA=$MNTHEAD/"$$"_mpA
 103 mpB=$MNTHEAD/"$$"_mpB
 104 mpC=$MNTHEAD/"$$"_mpC
 105
 106 find_mnt()
 107 {
 108         echo "------"
 109         findmnt -n -o TARGET,SOURCE $SCRATCH_DEV | \
 110                 sed -e "s;$mpA;mpA;g" \
 111                     -e "s;$mpB;mpB;g" \
 112                     -e "s;$mpC;mpC;g" | \
 113                 _filter_spaces | _filter_scratch | \
 114                 _filter_test_dir | sort
 115         echo "======"
 116 }
 117
 118 start_test()
 119 {
 120         local type=$1
 121
 122         _scratch_mkfs >$seqres.full 2>&1
 123         _get_mount -t $FSTYP $SCRATCH_DEV $MNTHEAD
 124         $MOUNT_PROG --make-"${type}" $MNTHEAD
 125         mkdir $mpA $mpB $mpC
 126 }
 127
 128 end_test()
 129 {
 130         _clear_mount_stack
 131         rm -rf $mpA $mpB $mpC
 132 }
 133
 134 run()
 135 {
 136         # command include make-shared/slave/private/unbindable
 137         local cmd=$1
 138         # orginal status include shared/slave/shared&slave/private/unbindable
 139         local orgs="$2"
 140
 141         # bind anything on un-shared dest will keep the source type
 142         # So use un-shared dest at here
 143         start_test private
 144
 145         echo "make-$cmd a $orgs mount"
 146         _get_mount -t $FSTYP $SCRATCH_DEV $mpA
 147         mkdir -p $mpA/dir 2>/dev/null
 148         $MOUNT_PROG --make-shared $mpA
 149
 150         # prepare the original status on mpB
 151         _get_mount --bind $mpA $mpB
 152         # shared&slave status need to do make-slave then make-shared
 153         # two operations.
 154         for t in $orgs; do
 155                 $MOUNT_PROG --make-"$t" $mpB
 156         done
 157
 158         # "before" for prepare and check original status
 159         # "after" for check the impact of make-$cmd command
 160         for i in before after; do
 161                 echo "$i make-$cmd run on $orgs"
 162                 # maybe unbindable at here
 163                 _get_mount --bind $mpB $mpC 2>/dev/null
 164                 if [ $? -ne 0 ];then
 165                         find_mnt
 166                 else
 167                         for m in $mpA $mpB $mpC; do
 168                                 _get_mount -t $FSTYP $SCRATCH_DEV $m/dir
 169                                 fs_stress $m/dir
 170                                 find_mnt
 171                                 _put_mount
 172                         done
 173                         _put_mount # umount C
 174                 fi
 175                 if [ "$i" = "before" ];then
 176                         $MOUNT_PROG --make-"${cmd}" $mpB
 177                 fi
 178         done
 179
 180         end_test
 181 }
 182
 183 do_test()
 184 {
 185     #   operation  original_status
 186     run shared     shared
 187     run shared     slave
 188     run shared     "slave shared"
 189     run shared     private
 190     run shared     unbindable
 191
 192     run slave      shared
 193     run slave      slave
 194     run slave      "slave shared"
 195     run slave      private
 196     run slave      unbindable
 197
 198     run private    shared
 199     run private    slave
 200     run private    "slave shared"
 201     run private    private
 202     run private    unbindable
 203
 204     run unbindable shared
 205     run unbindable slave
 206     run unbindable "slave shared"
 207     run unbindable private
 208     run unbindable unbindable
 209 }
 210
 211 do_test
 212
 213 # success, all done
 214 status=0
 215 exit