tests/generic/410

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2016 Red Hat Inc.  All Rights Reserved.
   4 #
   5 # FS QA Test 410
   6 #
   7 # Test mount shared subtrees, verify the state transition when use:
   8 #   --make-shared
   9 #   --make-slave
  10 #   --make-private
  11 #   --make-unbindable
  12 #
  13 # ------------------------------------------------------------------------
  14 # |             |make-shared |  make-slave  | make-private |make-unbindab|
  15 # --------------|------------|--------------|--------------|-------------|
  16 # |shared       |shared      |*slave/private|   private    | unbindable  |
  17 # |             |            |              |              |             |
  18 # |-------------|------------|--------------|--------------|-------------|
  19 # |slave        |shared      |    **slave   |    private   | unbindable  |
  20 # |             |and slave   |              |              |             |
  21 # |-------------|------------|--------------|--------------|-------------|
  22 # |shared       |shared      |    slave     |    private   | unbindable  |
  23 # |and slave    |and slave   |              |              |             |
  24 # |-------------|------------|--------------|--------------|-------------|
  25 # |private      |shared      |  **private   |    private   | unbindable  |
  26 # |-------------|------------|--------------|--------------|-------------|
  27 # |unbindable   |shared      |**unbindable  |    private   | unbindable  |
  28 # ------------------------------------------------------------------------
  29 #
  30 seq=`basename $0`
  31 seqres=$RESULT_DIR/$seq
  32 echo "QA output created by $seq"
  33
  34 here=`pwd`
  35 tmp=/tmp/$$
  36 status=1        # failure is the default!
  37 trap "_cleanup; exit \$status" 0 1 2 3 15
  38
  39 _cleanup()
  40 {
  41         cd /
  42         rm -f $tmp.*
  43         _clear_mount_stack
  44         # make sure there's no bug cause dentry isn't be freed
  45         rm -rf $MNTHEAD
  46 }
  47
  48 # get standard environment, filters and checks
  49 . ./common/rc
  50 . ./common/filter
  51
  52 # remove previous $seqres.full before test
  53 rm -f $seqres.full
  54
  55 # real QA test starts here
  56 _supported_fs generic
  57 _require_test
  58 _require_scratch
  59 _require_local_device $SCRATCH_DEV
  60
  61 fs_stress()
  62 {
  63         local target=$1
  64
  65         $FSSTRESS_PROG -z -n 50 -p 3 \
  66                        -f creat=5 \
  67                        -f mkdir=5 \
  68                        -f link=2 \
  69                        -f rename=1 \
  70                        -f rmdir=2 \
  71                        -f unlink=1 \
  72                        -f symlink=1 \
  73                        -f write=1 \
  74                        -f read=1 \
  75                        -f chown=1 \
  76                        -f getdents=1 \
  77                        -f fiemap=1 \
  78                        -d $target >/dev/null
  79         sync
  80 }
  81
  82 # prepare some mountpoint dir
  83 MNTHEAD=$TEST_DIR/$seq
  84 rm -rf $MNTHEAD
  85 mkdir $MNTHEAD 2>>$seqres.full
  86 mpA=$MNTHEAD/"$$"_mpA
  87 mpB=$MNTHEAD/"$$"_mpB
  88 mpC=$MNTHEAD/"$$"_mpC
  89
  90 find_mnt()
  91 {
  92         echo "------"
  93         findmnt -n -o TARGET,SOURCE $SCRATCH_DEV | \
  94                 sed -e "s;$mpA;mpA;g" \
  95                     -e "s;$mpB;mpB;g" \
  96                     -e "s;$mpC;mpC;g" | \
  97                 _filter_spaces | _filter_testdir_and_scratch | sort
  98         echo "======"
  99 }
 100
 101 start_test()
 102 {
 103         local type=$1
 104
 105         _scratch_mkfs >$seqres.full 2>&1
 106         _get_mount -t $FSTYP $SCRATCH_DEV $MNTHEAD
 107         $MOUNT_PROG --make-"${type}" $MNTHEAD
 108         mkdir $mpA $mpB $mpC
 109 }
 110
 111 end_test()
 112 {
 113         _clear_mount_stack
 114         rm -rf $mpA $mpB $mpC
 115 }
 116
 117 run()
 118 {
 119         # command include make-shared/slave/private/unbindable
 120         local cmd=$1
 121         # orginal status include shared/slave/shared&slave/private/unbindable
 122         local orgs="$2"
 123
 124         # bind anything on un-shared dest will keep the source type
 125         # So use un-shared dest at here
 126         start_test private
 127
 128         echo "make-$cmd a $orgs mount"
 129         _get_mount -t $FSTYP $SCRATCH_DEV $mpA
 130         mkdir -p $mpA/dir 2>/dev/null
 131         $MOUNT_PROG --make-shared $mpA
 132
 133         # prepare the original status on mpB
 134         _get_mount --bind $mpA $mpB
 135         # shared&slave status need to do make-slave then make-shared
 136         # two operations.
 137         for t in $orgs; do
 138                 $MOUNT_PROG --make-"$t" $mpB
 139         done
 140
 141         # "before" for prepare and check original status
 142         # "after" for check the impact of make-$cmd command
 143         for i in before after; do
 144                 echo "$i make-$cmd run on $orgs"
 145                 # maybe unbindable at here
 146                 _get_mount --bind $mpB $mpC 2>/dev/null
 147                 if [ $? -ne 0 ];then
 148                         find_mnt
 149                 else
 150                         for m in $mpA $mpB $mpC; do
 151                                 _get_mount -t $FSTYP $SCRATCH_DEV $m/dir
 152                                 fs_stress $m/dir
 153                                 find_mnt
 154                                 _put_mount
 155                         done
 156                         _put_mount # umount C
 157                 fi
 158                 if [ "$i" = "before" ];then
 159                         $MOUNT_PROG --make-"${cmd}" $mpB
 160                 fi
 161         done
 162
 163         end_test
 164 }
 165
 166 do_test()
 167 {
 168     #   operation  original_status
 169     run shared     shared
 170     run shared     slave
 171     run shared     "slave shared"
 172     run shared     private
 173     run shared     unbindable
 174
 175     run slave      shared
 176     run slave      slave
 177     run slave      "slave shared"
 178     run slave      private
 179     run slave      unbindable
 180
 181     run private    shared
 182     run private    slave
 183     run private    "slave shared"
 184     run private    private
 185     run private    unbindable
 186
 187     run unbindable shared
 188     run unbindable slave
 189     run unbindable "slave shared"
 190     run unbindable private
 191     run unbindable unbindable
 192 }
 193
 194 do_test
 195
 196 # success, all done
 197 status=0
 198 exit