diff --git a/tests/btrfs/096 b/tests/btrfs/096 new file mode 100755 index 00000000..f5b3a7f8 --- /dev/null +++ b/tests/btrfs/096 @@ -0,0 +1,80 @@ +#! /bin/bash +# FSQA Test No. 096 +# +# Test that we can not clone an inline extent into a non-zero file offset. +# +#----------------------------------------------------------------------- +# +# Copyright (C) 2015 SUSE Linux Products GmbH. All Rights Reserved. +# Author: Filipe Manana +# +# 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 -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_need_to_be_root +_supported_fs btrfs +_supported_os Linux +_require_scratch +_require_cloner + +rm -f $seqres.full + +_scratch_mkfs >>$seqres.full 2>&1 +_scratch_mount + +# Create our test files. File foo has the same 2K of data at offset 4K as file +# bar has at its offset 0. +$XFS_IO_PROG -f -s -c "pwrite -S 0xaa 0 4K" \ + -c "pwrite -S 0xbb 4k 2K" \ + -c "pwrite -S 0xcc 8K 4K" \ + $SCRATCH_MNT/foo | _filter_xfs_io + +# File bar consists of a single inline extent (2K size). +$XFS_IO_PROG -f -s -c "pwrite -S 0xbb 0 2K" \ + $SCRATCH_MNT/bar | _filter_xfs_io + +# Now call the clone ioctl to clone the extent of file bar into file foo at its +# offset 4K. This made file foo have an inline extent at offset 4K, something +# which the btrfs code can not deal with in future IO operations because all +# inline extents are supposed to start at an offset of 0, resulting in all sorts +# of chaos. +# So here we validate that the clone ioctl returns an EOPNOTSUPP, which is what +# it returns for other cases dealing with inlined extents. +$CLONER_PROG -s 0 -d $((4 * 1024)) -l $((2 * 1024)) \ + $SCRATCH_MNT/bar $SCRATCH_MNT/foo + +# Because of the inline extent at offset 4K, the following write made the kernel +# crash with a BUG_ON(). +$XFS_IO_PROG -c "pwrite -S 0xdd 6K 2K" $SCRATCH_MNT/foo | _filter_xfs_io + +status=0 +exit diff --git a/tests/btrfs/096.out b/tests/btrfs/096.out new file mode 100644 index 00000000..235198d3 --- /dev/null +++ b/tests/btrfs/096.out @@ -0,0 +1,12 @@ +QA output created by 096 +wrote 4096/4096 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2048/2048 bytes at offset 4096 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 4096/4096 bytes at offset 8192 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2048/2048 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +clone failed: Operation not supported +wrote 2048/2048 bytes at offset 6144 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) diff --git a/tests/btrfs/group b/tests/btrfs/group index a5c03d39..fc341fb6 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -98,3 +98,4 @@ 093 auto quick clone 094 auto quick send 095 auto quick metadata +096 auto quick clone