tests/btrfs/155

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (C) 2017 SUSE Linux Products GmbH. All Rights Reserved.
   4 #
   5 # FS QA Test No. btrfs/155
   6 #
   7 # Test that an incremental send operation works if a file that has multiple
   8 # hard links has some of its hard links renamed in the send snapshot, with one
   9 # of them getting the same path that some other inode had in the send snapshot.
  10 #
  11 . ./common/preamble
  12 _begin_fstest auto quick send
  13
  14 # Override the default cleanup function.
  15 _cleanup()
  16 {
  17         cd /
  18         rm -fr $send_files_dir
  19         rm -f $tmp.*
  20 }
  21
  22 # Import common functions.
  23 . ./common/filter
  24
  25 # real QA test starts here
  26 _supported_fs btrfs
  27 _require_test
  28 _require_scratch
  29 _require_fssum
  30
  31 send_files_dir=$TEST_DIR/btrfs-test-$seq
  32
  33 rm -fr $send_files_dir
  34 mkdir $send_files_dir
  35
  36 _scratch_mkfs >>$seqres.full 2>&1
  37 _scratch_mount
  38
  39 mkdir $SCRATCH_MNT/a
  40 touch $SCRATCH_MNT/a/f1
  41 mkdir -p $SCRATCH_MNT/a/b/c
  42 ln $SCRATCH_MNT/a/f1 $SCRATCH_MNT/a/b/c/f1l1
  43 touch $SCRATCH_MNT/a/b/f2
  44 mkdir $SCRATCH_MNT/d
  45 mv $SCRATCH_MNT/a/b/c/f1l1 $SCRATCH_MNT/d/f1l1_2
  46 ln $SCRATCH_MNT/a/b/f2 $SCRATCH_MNT/a/f2l1
  47 ln $SCRATCH_MNT/a/b/f2 $SCRATCH_MNT/d/f2l2
  48 mv $SCRATCH_MNT/a/f1 $SCRATCH_MNT/d/f1_2
  49
  50 # Filesystem looks like:
  51 #
  52 # .                                                      (ino 256)
  53 # |---- a/                                               (ino 257)
  54 # |     |---- b/                                         (ino 259)
  55 # |     |     |---- c/                                   (ino 260)
  56 # |     |     |---- f2                                   (ino 261)
  57 # |     |
  58 # |     |---- f2l1                                       (ino 261)
  59 # |
  60 # |---- d/                                               (ino 262)
  61 #       |---- f1l1_2                                     (ino 258)
  62 #       |---- f2l2                                       (ino 261)
  63 #       |---- f1_2                                       (ino 258)
  64 #
  65 $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
  66         $SCRATCH_MNT/mysnap1 > /dev/null
  67
  68 $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap \
  69         $SCRATCH_MNT/mysnap1 2>&1 1>/dev/null | _filter_scratch
  70
  71 mv $SCRATCH_MNT/d $SCRATCH_MNT/a/b/d2
  72 mv $SCRATCH_MNT/a/f2l1 $SCRATCH_MNT/d
  73 mkdir $SCRATCH_MNT/a/f2l1
  74 ln $SCRATCH_MNT/a/b/d2/f1_2 $SCRATCH_MNT/a/b/f1l2
  75 mv $SCRATCH_MNT/a/b $SCRATCH_MNT/a/f2l1/b2
  76 mv $SCRATCH_MNT/a/f2l1/b2/d2 $SCRATCH_MNT/a/f2l1/b2/c/d3
  77 mv $SCRATCH_MNT/a/f2l1/b2/c/d3/f2l2 $SCRATCH_MNT/a/f2l1/b2/c/d3/f2l2_2
  78
  79 # Filesystem now looks like:
  80 #
  81 # .                                                      (ino 256)
  82 # |---- a/                                               (ino 257)
  83 # |     |---- f2l1/                                      (ino 263)
  84 # |             |---- b2/                                (ino 259)
  85 # |                   |---- c/                           (ino 260)
  86 # |                   |     |---- d3                     (ino 262)
  87 # |                   |           |---- f1l1_2           (ino 258)
  88 # |                   |           |---- f2l2_2           (ino 261)
  89 # |                   |           |---- f1_2             (ino 258)
  90 # |                   |
  91 # |                   |---- f2                           (ino 261)
  92 # |                   |---- f1l2                         (ino 258)
  93 # |
  94 # |---- d                                                (ino 261)
  95 #
  96
  97 $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
  98                  $SCRATCH_MNT/mysnap2 > /dev/null
  99 $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
 100                  $SCRATCH_MNT/mysnap2 2>&1 1>/dev/null | _filter_scratch
 101
 102 $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
 103 $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \
 104         -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2
 105
 106 # Now recreate the filesystem by receiving both send streams and verify we get
 107 # the same content that the original filesystem had.
 108 _scratch_unmount
 109 _scratch_mkfs >>$seqres.full 2>&1
 110 _scratch_mount
 111
 112 $BTRFS_UTIL_PROG receive -f $send_files_dir/1.snap $SCRATCH_MNT > /dev/null
 113 # The incremental send operation below used to issue an unlink operation for the
 114 # path "d/f2l1" after it orphanized inode 262 (renamed it to o262-7-0) and after
 115 # it created the link named "d" for inode 261, which made the receiver fail on
 116 # the unlink operation with error code ENOTDIR. That unlink operation should
 117 # have had the path "o262-7-0/f2l2" instead.
 118 $BTRFS_UTIL_PROG receive -f $send_files_dir/2.snap $SCRATCH_MNT > /dev/null
 119 $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
 120 $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
 121
 122 status=0
 123 exit