| #! /bin/bash |
| # FS QA Test No. btrfs/155 |
| # |
| # Test that an incremental send operation works if a file that has multiple |
| # hard links has some of its hard links renamed in the send snapshot, with one |
| # of them getting the same path that some other inode had in the send snapshot. |
| # |
| #----------------------------------------------------------------------- |
| # |
| # Copyright (C) 2017 SUSE Linux Products GmbH. All Rights Reserved. |
| # Author: Filipe Manana <fdmanana@suse.com> |
| # |
| # 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() |
| { |
| cd / |
| rm -fr $send_files_dir |
| rm -f $tmp.* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs btrfs |
| _supported_os Linux |
| _require_test |
| _require_scratch |
| _require_fssum |
| |
| send_files_dir=$TEST_DIR/btrfs-test-$seq |
| |
| rm -f $seqres.full |
| rm -fr $send_files_dir |
| mkdir $send_files_dir |
| |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| mkdir $SCRATCH_MNT/a |
| touch $SCRATCH_MNT/a/f1 |
| mkdir -p $SCRATCH_MNT/a/b/c |
| ln $SCRATCH_MNT/a/f1 $SCRATCH_MNT/a/b/c/f1l1 |
| touch $SCRATCH_MNT/a/b/f2 |
| mkdir $SCRATCH_MNT/d |
| mv $SCRATCH_MNT/a/b/c/f1l1 $SCRATCH_MNT/d/f1l1_2 |
| ln $SCRATCH_MNT/a/b/f2 $SCRATCH_MNT/a/f2l1 |
| ln $SCRATCH_MNT/a/b/f2 $SCRATCH_MNT/d/f2l2 |
| mv $SCRATCH_MNT/a/f1 $SCRATCH_MNT/d/f1_2 |
| |
| # Filesystem looks like: |
| # |
| # . (ino 256) |
| # |---- a/ (ino 257) |
| # | |---- b/ (ino 259) |
| # | | |---- c/ (ino 260) |
| # | | |---- f2 (ino 261) |
| # | | |
| # | |---- f2l1 (ino 261) |
| # | |
| # |---- d/ (ino 262) |
| # |---- f1l1_2 (ino 258) |
| # |---- f2l2 (ino 261) |
| # |---- f1_2 (ino 258) |
| # |
| $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \ |
| $SCRATCH_MNT/mysnap1 > /dev/null |
| |
| $BTRFS_UTIL_PROG send -f $send_files_dir/1.snap \ |
| $SCRATCH_MNT/mysnap1 2>&1 1>/dev/null | _filter_scratch |
| |
| mv $SCRATCH_MNT/d $SCRATCH_MNT/a/b/d2 |
| mv $SCRATCH_MNT/a/f2l1 $SCRATCH_MNT/d |
| mkdir $SCRATCH_MNT/a/f2l1 |
| ln $SCRATCH_MNT/a/b/d2/f1_2 $SCRATCH_MNT/a/b/f1l2 |
| mv $SCRATCH_MNT/a/b $SCRATCH_MNT/a/f2l1/b2 |
| mv $SCRATCH_MNT/a/f2l1/b2/d2 $SCRATCH_MNT/a/f2l1/b2/c/d3 |
| mv $SCRATCH_MNT/a/f2l1/b2/c/d3/f2l2 $SCRATCH_MNT/a/f2l1/b2/c/d3/f2l2_2 |
| |
| # Filesystem now looks like: |
| # |
| # . (ino 256) |
| # |---- a/ (ino 257) |
| # | |---- f2l1/ (ino 263) |
| # | |---- b2/ (ino 259) |
| # | |---- c/ (ino 260) |
| # | | |---- d3 (ino 262) |
| # | | |---- f1l1_2 (ino 258) |
| # | | |---- f2l2_2 (ino 261) |
| # | | |---- f1_2 (ino 258) |
| # | | |
| # | |---- f2 (ino 261) |
| # | |---- f1l2 (ino 258) |
| # | |
| # |---- d (ino 261) |
| # |
| |
| $BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \ |
| $SCRATCH_MNT/mysnap2 > /dev/null |
| $BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \ |
| $SCRATCH_MNT/mysnap2 2>&1 1>/dev/null | _filter_scratch |
| |
| $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 |
| $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \ |
| -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2 |
| |
| # Now recreate the filesystem by receiving both send streams and verify we get |
| # the same content that the original filesystem had. |
| _scratch_unmount |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| $BTRFS_UTIL_PROG receive -f $send_files_dir/1.snap $SCRATCH_MNT > /dev/null |
| # The incremental send operation below used to issue an unlink operation for the |
| # path "d/f2l1" after it orphanized inode 262 (renamed it to o262-7-0) and after |
| # it created the link named "d" for inode 261, which made the receiver fail on |
| # the unlink operation with error code ENOTDIR. That unlink operation should |
| # have had the path "o262-7-0/f2l2" instead. |
| $BTRFS_UTIL_PROG receive -f $send_files_dir/2.snap $SCRATCH_MNT > /dev/null |
| $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1 |
| $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2 |
| |
| status=0 |
| exit |