diff --git a/tests/btrfs/040 b/tests/btrfs/040 new file mode 100755 index 00000000..77c4a846 --- /dev/null +++ b/tests/btrfs/040 @@ -0,0 +1,124 @@ +#! /bin/bash +# FS QA Test No. btrfs/040 +# +# Regression test for btrfs incremental send issue where an rmdir +# instruction was sent multiple times for the same target directory. +# The number of times depended on the number of hardlinks against +# the same inode inside the target directory. That inode must have +# had the highest number of all the inodes that were children of the +# directory. This made the btrfs receive command fail immediately once +# it received the second rmdir instruction. +# +# This issue is fixed by the following linux kernel btrfs patch: +# +# Btrfs: send, don't send rmdir for same target multiple times +# +#----------------------------------------------------------------------- +# 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" + +here=`pwd` +tmp=`mktemp -d` +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + rm -fr $tmp +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux +_require_scratch +_need_to_be_root + +FSSUM_PROG=$here/src/fssum +[ -x $FSSUM_PROG ] || _notrun "fssum not built" + +rm -f $seqres.full + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +mkdir -p $SCRATCH_MNT/a/b/c +echo 'hello world' > $SCRATCH_MNT/a/b/c/hel.txt +echo 'ola mundo' > $SCRATCH_MNT/a/b/c/foo.txt +ln $SCRATCH_MNT/a/b/c/foo.txt $SCRATCH_MNT/a/b/c/bar.txt +ln $SCRATCH_MNT/a/b/c/foo.txt $SCRATCH_MNT/a/b/baz.txt + +# Filesystem looks like: +# +# . (ino 256) +# |-- a/ (ino 257) +# |-- b/ (ino 258) +# |-- c/ (ino 259) +# | |-- hel.txt (ino 260) +# | |-- foo.txt (ino 261) +# | |-- bar.txt (ino 261) +# | +# |-- baz.txt (ino 261) + +_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1 + +rm -f $SCRATCH_MNT/a/b/c/foo.txt +rm -f $SCRATCH_MNT/a/b/c/bar.txt +rm -f $SCRATCH_MNT/a/b/c/hel.txt +rmdir $SCRATCH_MNT/a/b/c + +# Filesystem now looks like: +# +# . (ino 256) +# |-- a/ (ino 257) +# |-- b/ (ino 258) +# |-- baz.txt (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 $SCRATCH_MNT/mysnap1 -f $tmp/1.snap +_run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 $SCRATCH_MNT/mysnap2 \ + -f $tmp/2.snap + +_scratch_unmount +_check_btrfs_filesystem $SCRATCH_DEV + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +_run_btrfs_util_prog receive $SCRATCH_MNT -f $tmp/1.snap +run_check $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1 2>> $seqres.full + +_run_btrfs_util_prog receive $SCRATCH_MNT -f $tmp/2.snap +run_check $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2 2>> $seqres.full + +_scratch_unmount +_check_btrfs_filesystem $SCRATCH_DEV + +status=0 +exit diff --git a/tests/btrfs/040.out b/tests/btrfs/040.out new file mode 100644 index 00000000..77405496 --- /dev/null +++ b/tests/btrfs/040.out @@ -0,0 +1 @@ +QA output created by 040 diff --git a/tests/btrfs/group b/tests/btrfs/group index 7a633b36..f5452b5f 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -42,3 +42,4 @@ 037 auto quick 038 auto quick 039 auto quick +040 auto quick