| #! /bin/bash |
| # FS QA Test No. btrfs/054 |
| # |
| # Regression test for a btrfs incremental send issue where the difference |
| # between the snapshots used by the incremental send consists of one of |
| # these cases: |
| # |
| # 1) First snapshot has a directory with name X and in the second snapshot |
| # that directory doesn't exist anymore but a subvolume/snapshot with |
| # the same name (X) exists; |
| # |
| # 2) First snapshot has a subvolume/snapshot with name X and in the second |
| # snapshot that subvolume/snapshot doesn't exist anymore (might have been |
| # replaced by a directory with the same name or not). |
| # |
| # This issue is fixed by the following linux kernel btrfs patches: |
| # |
| # Btrfs: send, don't error in the presence of subvols/snapshots |
| # Btrfs: set dead flag on the right root when destroying snapshot |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2014 Filipe Manana. All Rights Reserved. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| # |
| |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| rm -fr $send_files_dir |
| rm -fr $tmp |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/attr |
| |
| # real QA test starts here |
| _supported_fs btrfs |
| _supported_os Linux |
| _require_test |
| _require_scratch |
| |
| send_files_dir=$TEST_DIR/btrfs-test-$seq |
| |
| rm -f $seqres.full |
| rm -fr $send_files_dir |
| mkdir $send_files_dir |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| |
| mkdir $SCRATCH_MNT/testdir |
| _run_btrfs_util_prog subvolume create $SCRATCH_MNT/first_subvol |
| |
| _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 |
| |
| # Replace the directory testdir with a subvolume that has the same name. |
| rmdir $SCRATCH_MNT/testdir |
| _run_btrfs_util_prog subvolume create $SCRATCH_MNT/testdir |
| |
| # Delete the subvolume first_subvol and create a directory with the same name. |
| _run_btrfs_util_prog subvolume delete $SCRATCH_MNT/first_subvol |
| mkdir $SCRATCH_MNT/first_subvol |
| |
| _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2 |
| |
| _run_btrfs_util_prog send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1 |
| _run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \ |
| $SCRATCH_MNT/mysnap2 |
| |
| _scratch_unmount |
| _check_scratch_fs |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| |
| _run_btrfs_util_prog receive -f $send_files_dir/1.snap $SCRATCH_MNT |
| [ -e $SCRATCH_MNT/first_subvol ] && \ |
| echo "Subvolume first_subvol was not supposed to be replicated by full send!" |
| |
| _run_btrfs_util_prog receive -f $send_files_dir/2.snap $SCRATCH_MNT |
| [ -e $SCRATCH_MNT/testdir ] && \ |
| echo "Directory testdir was supposed to be deleted after incremental send!" |
| |
| status=0 |
| exit |