tests/btrfs/129

   1 #! /bin/bash
   2 # FS QA Test No. btrfs/129
   3 #
   4 # Test that an incremental send operation does not prematurely issues rmdir
   5 # operations under a particular scenario (the rmdir operation is sent before
   6 # the target directory is empty).
   7 #
   8 #-----------------------------------------------------------------------
   9 # Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
  10 # Author: Filipe Manana <fdmanana@suse.com>
  11 #
  12 # This program is free software; you can redistribute it and/or
  13 # modify it under the terms of the GNU General Public License as
  14 # published by the Free Software Foundation.
  15 #
  16 # This program is distributed in the hope that it would be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program; if not, write the Free Software Foundation,
  23 # Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  24 #-----------------------------------------------------------------------
  25 #
  26
  27 seq=`basename $0`
  28 seqres=$RESULT_DIR/$seq
  29 echo "QA output created by $seq"
  30
  31 tmp=/tmp/$$
  32 status=1        # failure is the default!
  33 trap "_cleanup; exit \$status" 0 1 2 3 15
  34
  35 _cleanup()
  36 {
  37         cd /
  38         rm -fr $send_files_dir
  39         rm -f $tmp.*
  40 }
  41
  42 # get standard environment, filters and checks
  43 . ./common/rc
  44 . ./common/filter
  45
  46 # real QA test starts here
  47 _supported_fs btrfs
  48 _supported_os Linux
  49 _require_test
  50 _require_scratch
  51 _require_fssum
  52
  53 send_files_dir=$TEST_DIR/btrfs-test-$seq
  54
  55 rm -f $seqres.full
  56 rm -fr $send_files_dir
  57 mkdir $send_files_dir
  58
  59 _scratch_mkfs >>$seqres.full 2>&1
  60 _scratch_mount
  61
  62 mkdir $SCRATCH_MNT/a
  63 mkdir $SCRATCH_MNT/tmp
  64 mkdir $SCRATCH_MNT/del
  65 mv $SCRATCH_MNT/tmp $SCRATCH_MNT/del
  66 mkdir $SCRATCH_MNT/a/c
  67 mkdir $SCRATCH_MNT/del/x
  68
  69 # Filesystem looks like:
  70 #
  71 # .                                                             (ino 256)
  72 # |--- a/                                                       (ino 257)
  73 # |    |--- c/                                                  (ino 260)
  74 # |
  75 # |--- del/                                                     (ino 259)
  76 #       |--- tmp/                                               (ino 258)
  77 #       |--- x/                                                 (ino 261)
  78 #
  79 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
  80
  81 # When inode 260 was processed, rename operations for it and for inode 258 were
  82 # issued (the rename for inode 260 must happen before the rename for inode 258).
  83 # Then immediately after issuing the rename operation for inode 258, and before
  84 # inode 261 was processed, the send stream issued a rmdir operation for inode
  85 # 260, which would make the receiver fail with the error ENOTEMPTY because inode
  86 # 261 was not yet renamed, it was still a child of inode 260 at that time.
  87 #
  88 mv $SCRATCH_MNT/a/c $SCRATCH_MNT
  89 mv $SCRATCH_MNT/del/x $SCRATCH_MNT/a
  90 mv $SCRATCH_MNT/del/tmp $SCRATCH_MNT/c
  91 rmdir $SCRATCH_MNT/del
  92
  93 # Filesystem now looks like:
  94 #
  95 # .                                                             (ino 256)
  96 # |--- a/                                                       (ino 257)
  97 # |    |--- x/                                                  (ino 261)
  98 # |
  99 # |--- c/                                                       (ino 260)
 100 #      |--- tmp/                                                (ino 258)
 101 #
 102 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
 103
 104 run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
 105 run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \
 106         -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2
 107
 108 _run_btrfs_util_prog send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1
 109 _run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
 110         $SCRATCH_MNT/mysnap2
 111
 112 # Now recreate the filesystem by receiving both send streams and verify we get
 113 # the same content that the original filesystem had.
 114 _scratch_unmount
 115 _scratch_mkfs >>$seqres.full 2>&1
 116 _scratch_mount
 117
 118 _run_btrfs_util_prog receive -f $send_files_dir/1.snap $SCRATCH_MNT
 119 run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
 120 _run_btrfs_util_prog receive -f $send_files_dir/2.snap $SCRATCH_MNT
 121 run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
 122
 123 echo "Silence is golden"
 124 status=0
 125 exit