| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2014 Filipe Manana. All Rights Reserved. |
| # |
| # FS QA Test No. btrfs/039 |
| # |
| # Regression test for a btrfs incremental send issue related to renaming of |
| # directories. If at the time of the initial send we have a directory that is |
| # a child of a directory with a higher inode number, and then later after the |
| # initial full send we rename both the child and parent directories, but |
| # without moving any of them, a subsequent incremental send would produce a |
| # rename instruction for the child directory that pointed to an invalid path. |
| # This made the btrfs receive operation fail. |
| # |
| # This issue is fixed by the following linux kernel btrfs patch: |
| # |
| # Btrfs: incremental send, fix invalid path after dir rename |
| # |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| |
| tmp=`mktemp -d` |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| rm -fr $tmp |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs btrfs |
| _require_scratch |
| _require_fssum |
| |
| rm -f $seqres.full |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| |
| mkdir -p $SCRATCH_MNT/a/b |
| mkdir $SCRATCH_MNT/d |
| mkdir $SCRATCH_MNT/a/b/c |
| mv $SCRATCH_MNT/d $SCRATCH_MNT/a/b/c |
| mkdir $SCRATCH_MNT/e |
| mkdir -p $SCRATCH_MNT/a/b/f/g |
| mv $SCRATCH_MNT/e $SCRATCH_MNT/a/b/f/g |
| |
| # Filesystem looks like: |
| # |
| # . (ino 256) |
| # |-- a (ino 257) |
| # |-- b (ino 258) |
| # |-- c (ino 260) |
| # | |-- d (ino 259) |
| # | |
| # |-- f (ino 262) |
| # |-- g (ino 263) |
| # |-- e (ino 261) |
| |
| _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 |
| |
| mv $SCRATCH_MNT/a/b/c $SCRATCH_MNT/a/b/x |
| mv $SCRATCH_MNT/a/b/x/d $SCRATCH_MNT/a/b/x/y |
| mv $SCRATCH_MNT/a/b/f $SCRATCH_MNT/a/b/w |
| mv $SCRATCH_MNT/a/b/w/g/e $SCRATCH_MNT/a/b/w/g/z |
| |
| # Filesystem now looks like: |
| # |
| # . (ino 256) |
| # |-- a (ino 257) |
| # |-- b (ino 258) |
| # |-- x (ino 260) |
| # | |-- y (ino 259) |
| # | |
| # |-- w (ino 262) |
| # |-- g (ino 263) |
| # |-- z (ino 261) |
| |
| _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2 |
| |
| run_check $FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1 |
| run_check $FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \ |
| $SCRATCH_MNT/mysnap2 |
| |
| _run_btrfs_util_prog send -f $tmp/1.snap $SCRATCH_MNT/mysnap1 |
| _run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $tmp/2.snap \ |
| $SCRATCH_MNT/mysnap2 |
| |
| _scratch_unmount |
| _check_btrfs_filesystem $SCRATCH_DEV |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| |
| _run_btrfs_util_prog receive -f $tmp/1.snap $SCRATCH_MNT |
| run_check $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1 2>> $seqres.full |
| |
| _run_btrfs_util_prog receive -f $tmp/2.snap $SCRATCH_MNT |
| run_check $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2 2>> $seqres.full |
| |
| _scratch_unmount |
| _check_btrfs_filesystem $SCRATCH_DEV |
| |
| status=0 |
| exit |