tests/btrfs/129

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
   4 #
   5 # FS QA Test No. btrfs/129
   6 #
   7 # Test that an incremental send operation does not prematurely issues rmdir
   8 # operations under a particular scenario (the rmdir operation is sent before
   9 # the target directory is empty).
  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 mkdir $SCRATCH_MNT/tmp
  41 mkdir $SCRATCH_MNT/del
  42 mv $SCRATCH_MNT/tmp $SCRATCH_MNT/del
  43 mkdir $SCRATCH_MNT/a/c
  44 mkdir $SCRATCH_MNT/del/x
  45
  46 # Filesystem looks like:
  47 #
  48 # .                                                             (ino 256)
  49 # |--- a/                                                       (ino 257)
  50 # |    |--- c/                                                  (ino 260)
  51 # |
  52 # |--- del/                                                     (ino 259)
  53 #       |--- tmp/                                               (ino 258)
  54 #       |--- x/                                                 (ino 261)
  55 #
  56 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
  57
  58 # When inode 260 was processed, rename operations for it and for inode 258 were
  59 # issued (the rename for inode 260 must happen before the rename for inode 258).
  60 # Then immediately after issuing the rename operation for inode 258, and before
  61 # inode 261 was processed, the send stream issued a rmdir operation for inode
  62 # 260, which would make the receiver fail with the error ENOTEMPTY because inode
  63 # 261 was not yet renamed, it was still a child of inode 260 at that time.
  64 #
  65 mv $SCRATCH_MNT/a/c $SCRATCH_MNT
  66 mv $SCRATCH_MNT/del/x $SCRATCH_MNT/a
  67 mv $SCRATCH_MNT/del/tmp $SCRATCH_MNT/c
  68 rmdir $SCRATCH_MNT/del
  69
  70 # Filesystem now looks like:
  71 #
  72 # .                                                             (ino 256)
  73 # |--- a/                                                       (ino 257)
  74 # |    |--- x/                                                  (ino 261)
  75 # |
  76 # |--- c/                                                       (ino 260)
  77 #      |--- tmp/                                                (ino 258)
  78 #
  79 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
  80
  81 run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
  82 run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \
  83         -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2
  84
  85 _run_btrfs_util_prog send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1
  86 _run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
  87         $SCRATCH_MNT/mysnap2
  88
  89 # Now recreate the filesystem by receiving both send streams and verify we get
  90 # the same content that the original filesystem had.
  91 _scratch_unmount
  92 _scratch_mkfs >>$seqres.full 2>&1
  93 _scratch_mount
  94
  95 _run_btrfs_util_prog receive -f $send_files_dir/1.snap $SCRATCH_MNT
  96 run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
  97 _run_btrfs_util_prog receive -f $send_files_dir/2.snap $SCRATCH_MNT
  98 run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
  99
 100 echo "Silence is golden"
 101 status=0
 102 exit