| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2014 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. btrfs/077 |
| # |
| # Regression test for a btrfs incremental send issue. |
| # If between two snapshots we rename an existing directory named X to Y and |
| # make it a child (direct or not) of a new inode named X, we were delaying |
| # the move/rename of the former directory unnecessarily, which would result |
| # in attempting to rename the new directory from its orphan name to name X |
| # prematurely. This made btrfs receive fail with an error message like the |
| # following: |
| # |
| # rename o261-7-0 -> merlin/RC/OSD failed |
| # |
| # This issue was a regression in the 3.16 kernel and got fixed by the following |
| # linux kernel btrfs patch: |
| # |
| # Btrfs: send, don't delay dir move if there's a new parent inode |
| # |
| . ./common/preamble |
| _begin_fstest auto quick send snapshot |
| |
| tmp=`mktemp -d` |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| rm -fr $send_files_dir |
| rm -fr $tmp |
| } |
| |
| . ./common/filter |
| |
| _require_scratch |
| _require_fssum |
| |
| send_files_dir=$TEST_DIR/btrfs-test-$seq |
| |
| rm -fr $send_files_dir |
| mkdir $send_files_dir |
| |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| mkdir -p $SCRATCH_MNT/merlin/RC/OSD/Source |
| mkdir -p $SCRATCH_MNT/fdm/RCz/OSDz/Sourcez |
| mkdir -p $SCRATCH_MNT/Z/Z2 |
| |
| # Filesystem looks like: |
| # |
| # . (ino 256) |
| # |---- merlin/ (ino 257) |
| # | |---- RC/ (ino 258) |
| # | |----- OSD/ (ino 259) |
| # | |---- Source/ (ino 260) |
| # | |
| # |---- fdm/ (ino 261) |
| # | |---- RCz/ (ino 262) |
| # | |----- OSDz/ (ino 263) |
| # | |---- Sourcez/ (ino 264) |
| # | |
| # |---- Z/ (ino 265) |
| # |---- Z2/ (ino 266) |
| # |
| _btrfs subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 |
| |
| mkdir $SCRATCH_MNT/OSD |
| mv $SCRATCH_MNT/merlin/RC/OSD $SCRATCH_MNT/OSD/OSD-Plane_788 |
| mv $SCRATCH_MNT/OSD $SCRATCH_MNT/merlin/RC |
| |
| mkdir $SCRATCH_MNT/OSDz |
| mv $SCRATCH_MNT/Z/Z2 $SCRATCH_MNT/OSDz/xz2 |
| mv $SCRATCH_MNT/Z $SCRATCH_MNT/OSDz/xz2/xz |
| mv $SCRATCH_MNT/fdm/RCz/OSDz $SCRATCH_MNT/OSDz/xz2/xz/OSD-Plane_788z |
| mv $SCRATCH_MNT/OSDz $SCRATCH_MNT/fdm/RCz |
| |
| # Filesystem now looks like: |
| # |
| # |
| # . (ino 256) |
| # |---- merlin/ (ino 257) |
| # | |---- RC/ (ino 258) |
| # | |----- OSD/ (ino 267) (new) |
| # | |---- OSD-Plane_788/ (ino 259) |
| # | |---- Source/ (ino 260) |
| # | |
| # |---- fdm/ (ino 261) |
| # |---- RCz/ (ino 262) |
| # |----- OSDz/ (ino 268) (new) |
| # |--- xz2/ (ino 266) |
| # |---- xz/ (ino 265) |
| # |---- OSD-Plane_788z/ (ino 263) |
| # |---- Sourcez/ (ino 264) |
| # |
| |
| _btrfs subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2 |
| |
| run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 |
| run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \ |
| -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2 |
| |
| _btrfs send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1 |
| _btrfs send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \ |
| $SCRATCH_MNT/mysnap2 |
| |
| _check_scratch_fs |
| |
| _scratch_unmount |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| _btrfs receive -f $send_files_dir/1.snap $SCRATCH_MNT |
| run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 |
| |
| _btrfs receive -f $send_files_dir/2.snap $SCRATCH_MNT |
| run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2 |
| |
| echo "Silence is golden" |
| |
| status=0 |
| exit |
