tests/btrfs/030

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2014 Filipe Manana.  All Rights Reserved.
   4 #
   5 # FS QA Test No. btrfs/030
   6 #
   7 # Regression test for btrfs' incremental send feature:
   8 #
   9 # 1) Create several nested directories;
  10 # 2) Create a read only snapshot;
  11 # 3) Change the parentship of some of the deepest directories in a reverse
  12 #    way, so that parents become children and children become parents;
  13 # 4) Create another read only snapshot and use it for an incremental send
  14 #    relative to the first snapshot.
  15 #
  16 # At step 4 btrfs' send entered an infinite loop, increasing the memory it
  17 # used while building path strings until a krealloc was unable to allocate
  18 # more memory, which caused a warning dump in dmesg.
  19 #
  20 . ./common/preamble
  21 _begin_fstest auto quick send
  22
  23 tmp=`mktemp -d`
  24
  25 # Override the default cleanup function.
  26 _cleanup()
  27 {
  28     rm -fr $tmp
  29 }
  30
  31 # Import common functions.
  32 . ./common/filter
  33
  34 # real QA test starts here
  35 _supported_fs btrfs
  36 _require_scratch
  37 _require_fssum
  38
  39 _scratch_mkfs >/dev/null 2>&1
  40 _scratch_mount
  41
  42 mkdir -p $SCRATCH_MNT/a/b/c
  43 echo "hello" > $SCRATCH_MNT/a/b/c/file.txt
  44 mkdir $SCRATCH_MNT/a/b/c/d
  45 mkdir $SCRATCH_MNT/a/b/c2
  46 mkdir $SCRATCH_MNT/a/b/www
  47 echo "hey" > $SCRATCH_MNT/a/b/foobar.txt
  48 mkdir -p $SCRATCH_MNT/a/b/c3/x/y
  49
  50 mkdir -p $SCRATCH_MNT/a/b/foo1/foo2
  51 echo "hey" > $SCRATCH_MNT/a/b/foo1/foo2/f.txt
  52 mkdir $SCRATCH_MNT/a/b/foo3
  53
  54 mkdir -p $SCRATCH_MNT/a/b/bar1/bar2/bar3/bar4
  55 echo "ola" > $SCRATCH_MNT/a/b/bar1/bar2/bar3/bar4/hello.txt
  56
  57 # Directory tree looks like:
  58 #
  59 # .                                      (ino 256)
  60 # |-- a/                                 (ino 257)
  61 #     |-- b/                             (ino 258)
  62 #         |-- c/                         (ino 259)
  63 #         |   |-- file.txt               (ino 260)
  64 #         |   |-- d/                     (ino 261)
  65 #         |
  66 #         |-- c2/                        (ino 262)
  67 #         |-- www/                       (ino 263)
  68 #         |-- foobar.txt                 (ino 264)
  69 #         |
  70 #         |-- c3/                        (ino 265)
  71 #         |   |-- x/                     (ino 266)
  72 #         |       |-- y/                 (ino 267)
  73 #         |
  74 #         |-- foo1/                      (ino 268)
  75 #         |    |---foo2/                 (ino 269)
  76 #         |         |---f.txt            (ino 270)
  77 #         |
  78 #         |-- foo3/                      (ino 271)
  79 #         |
  80 #         |-- bar1/                      (ino 272)
  81 #              |-- bar2/                 (ino 273)
  82 #                  |-- bar3/             (ino 274)
  83 #                      |-- bar4          (ino 275)
  84 #                           |--hello.txt (ino 276)
  85
  86 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
  87
  88 echo " world" >> $SCRATCH_MNT/a/b/c/file.txt
  89 mv $SCRATCH_MNT/a/b/c/d $SCRATCH_MNT/a/b/c2/d2
  90 mv $SCRATCH_MNT/a/b/c $SCRATCH_MNT/a/b/c2/d2/cc
  91 mv $SCRATCH_MNT/a/b/c3/x/y $SCRATCH_MNT/a/b/c2/y2
  92 mv $SCRATCH_MNT/a/b/c3/x $SCRATCH_MNT/a/b/c2/y2/x2
  93 mv $SCRATCH_MNT/a/b/c3 $SCRATCH_MNT/a/b/c2/y2/x2/Z
  94 mv $SCRATCH_MNT/a/b/www $SCRATCH_MNT/a/b/c2/y2/x2/WWW
  95 mv $SCRATCH_MNT/a/b/foobar.txt $SCRATCH_MNT/a/b/c2/y2/x2/qwerty.txt
  96 ln $SCRATCH_MNT/a/b/c2/d2/cc/file.txt $SCRATCH_MNT/a/b/c2/y2/x2/Z/file_link.txt
  97 mv $SCRATCH_MNT/a/b/c2/d2/cc/file.txt $SCRATCH_MNT/a/b/c2/y2/x2
  98
  99 mv $SCRATCH_MNT/a/b/foo3 $SCRATCH_MNT/a/b/foo1/foo33
 100 mv $SCRATCH_MNT/a/b/foo1/foo2 $SCRATCH_MNT/a/b/foo1/foo33/foo22
 101 mv $SCRATCH_MNT/a/b/foo1/foo33/foo22/f.txt \
 102     $SCRATCH_MNT/a/b/foo1/foo33/foo22/fff.txt
 103
 104 echo " hello" >> $SCRATCH_MNT/a/b/bar1/bar2/bar3/bar4/hello.txt
 105 mv $SCRATCH_MNT/a/b/bar1/bar2/bar3/bar4/hello.txt \
 106     $SCRATCH_MNT/a/b/bar1/bar2/bar3/bar4/hello2.txt
 107 mv $SCRATCH_MNT/a/b/bar1/bar2/bar3/bar4 $SCRATCH_MNT/a/b/k44
 108 mv $SCRATCH_MNT/a/b/bar1/bar2/bar3 $SCRATCH_MNT/a/b/k44
 109 mv $SCRATCH_MNT/a/b/bar1/bar2 $SCRATCH_MNT/a/b/k44/bar3
 110 mv $SCRATCH_MNT/a/b/bar1 $SCRATCH_MNT/a/b/k44/bar3/bar2/k11
 111
 112 # Directory tree now looks like:
 113 #
 114 # .                                         (ino 256)
 115 # |-- a/                                    (ino 257)
 116 #     |-- b/                                (ino 258)
 117 #         |-- c2/                           (ino 262)
 118 #         |   |-- d2/                       (ino 261)
 119 #         |   |   |-- cc/                   (ino 259)
 120 #         |   |
 121 #         |   |-- y2/                       (ino 267)
 122 #         |       |-- x2/                   (ino 266)
 123 #         |           |-- file.txt          (ino 260)
 124 #         |           |-- qwerty.txt        (ino 264)
 125 #         |           |-- WWW/              (ino 263)
 126 #         |           |-- Z/                (ino 265)
 127 #         |               |-- file_link.txt
 128 #         |
 129 #         |-- foo1/                         (ino 268)
 130 #         |    |---foo33/                   (ino 271)
 131 #         |          |---foo22/             (ino 269)
 132 #         |                |---fff.txt      (ino 270)
 133 #         |
 134 #         |-- k44/                          (ino 275)
 135 #              |-- hello2.txt               (ino 276)
 136 #              |-- bar3/                    (ino 274)
 137 #                   |-- bar2/               (ino 273)
 138 #                        |-- k11/           (ino 272)
 139
 140 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
 141
 142 run_check $FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1
 143 run_check $FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \
 144     $SCRATCH_MNT/mysnap2
 145
 146 _run_btrfs_util_prog send -f $tmp/1.snap $SCRATCH_MNT/mysnap1
 147 _run_btrfs_util_prog send -f $tmp/2.snap -p $SCRATCH_MNT/mysnap1 \
 148     $SCRATCH_MNT/mysnap2
 149
 150 _scratch_unmount
 151 _check_btrfs_filesystem $SCRATCH_DEV
 152 _scratch_mkfs >/dev/null 2>&1
 153 _scratch_mount
 154
 155 _run_btrfs_util_prog receive -f $tmp/1.snap $SCRATCH_MNT
 156 run_check $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1 2>> $seqres.full
 157
 158 _run_btrfs_util_prog receive -f $tmp/2.snap $SCRATCH_MNT
 159 run_check $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2 2>> $seqres.full
 160
 161 _scratch_unmount
 162 _check_btrfs_filesystem $SCRATCH_DEV
 163
 164 status=0
 165 exit