From: Filipe David Borba Manana Date: Thu, 13 Mar 2014 04:18:18 +0000 (+1100) Subject: btrfs: add test for btrfs-progs restore feature X-Git-Tag: v2022.05.01~3222 X-Git-Url: http://git.apps.os.sepia.ceph.com/?p=xfstests-dev.git;a=commitdiff_plain;h=5f1cd20ff2a870a474bc340660e1b44e522c2bbc btrfs: add test for btrfs-progs restore feature This is a regression test to verify that the restore feature of btrfs-progs is able to correctly recover files that have compressed extents, specially when the respective file extent items have a non-zero data offset field. This issue is fixed by the following btrfs-progs patch: Btrfs-progs: fix restore dealing with compressed extents Signed-off-by: Filipe David Borba Manana Reviewed-by: Josef Bacik Signed-off-by: Dave Chinner --- diff --git a/tests/btrfs/041 b/tests/btrfs/041 new file mode 100755 index 00000000..b86e2f59 --- /dev/null +++ b/tests/btrfs/041 @@ -0,0 +1,113 @@ +#! /bin/bash +# FS QA Test No. btrfs/041 +# +# Test that btrfs-progs' restore command is able to correctly recover files +# that have compressed extents, specially when the respective file extent +# items have a non-zero data offset field. +# +# This issue is fixed by the following btrfs-progs patch: +# +# Btrfs-progs: fix restore of files with compressed extents +# +#----------------------------------------------------------------------- +# 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=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +restore_dir=$TEST_DIR/btrfs-test-$seq + +_cleanup() +{ + rm -fr $tmp + rm -fr $restore_dir +} + +# 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 + +rm -f $seqres.full +mkdir $restore_dir + +test_btrfs_restore() +{ + if [ -z $1 ] + then + OPTIONS="" + else + OPTIONS="-o compress-force=$1" + fi + _scratch_mkfs >/dev/null 2>&1 + _scratch_mount $OPTIONS + + # Create first file extent item, then fsync to make sure the next write + # won't end up in the same file extent item, so that we have 2 distinct + # file extent items. + $XFS_IO_PROG -f -c "pwrite -S 0xff -b 100000 0 100000" -c "fsync" \ + $SCRATCH_MNT/foo | _filter_xfs_io + + # This creates a second file extent item. + $XFS_IO_PROG -c "pwrite -S 0xaa -b 100000 100000 100000" -c "fsync" \ + $SCRATCH_MNT/foo | _filter_xfs_io + + # Now do a few writes that will cause the first extent item to be split, + # with some of the new smaller file extent items getting a data offset + # field different from 0. + $XFS_IO_PROG -c "pwrite -S 0x1e -b 2 10000 2" $SCRATCH_MNT/foo \ + | _filter_xfs_io + $XFS_IO_PROG -c "pwrite -S 0xd0 -b 11 33000 11" $SCRATCH_MNT/foo \ + | _filter_xfs_io + $XFS_IO_PROG -c "pwrite -S 0xbc -b 100 99000 100" $SCRATCH_MNT/foo \ + | _filter_xfs_io + + md5sum $SCRATCH_MNT/foo | _filter_scratch + + _scratch_unmount + + rm -f $restore_dir/foo + # Now that the fs is unmounted, call btrfs restore to read the file + # from disk and save it in the test directory. It used to incorrectly + # read compressed file extents that have a non-zero data offset field, + # resulting either in decompression failure or reading a wrong section + # of the extent. + _run_btrfs_util_prog restore $SCRATCH_DEV $restore_dir + md5sum $restore_dir/foo | cut -d ' ' -f 1 +} + +echo "Testing restore of file compressed with lzo" +test_btrfs_restore "lzo" +echo "Testing restore of file compressed with zlib" +test_btrfs_restore "zlib" +echo "Testing restore of file without any compression" +test_btrfs_restore + +status=0 +exit diff --git a/tests/btrfs/041.out b/tests/btrfs/041.out new file mode 100644 index 00000000..9f4e53de --- /dev/null +++ b/tests/btrfs/041.out @@ -0,0 +1,40 @@ +QA output created by 041 +Testing restore of file compressed with lzo +wrote 100000/100000 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 100000/100000 bytes at offset 100000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2/2 bytes at offset 10000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 11/11 bytes at offset 33000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 100/100 bytes at offset 99000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +67edd038aaa42adb5a1aa78f2eb1d2b6 SCRATCH_MNT/foo +67edd038aaa42adb5a1aa78f2eb1d2b6 +Testing restore of file compressed with zlib +wrote 100000/100000 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 100000/100000 bytes at offset 100000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2/2 bytes at offset 10000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 11/11 bytes at offset 33000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 100/100 bytes at offset 99000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +67edd038aaa42adb5a1aa78f2eb1d2b6 SCRATCH_MNT/foo +67edd038aaa42adb5a1aa78f2eb1d2b6 +Testing restore of file without any compression +wrote 100000/100000 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 100000/100000 bytes at offset 100000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 2/2 bytes at offset 10000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 11/11 bytes at offset 33000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 100/100 bytes at offset 99000 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +67edd038aaa42adb5a1aa78f2eb1d2b6 SCRATCH_MNT/foo +67edd038aaa42adb5a1aa78f2eb1d2b6 diff --git a/tests/btrfs/group b/tests/btrfs/group index f5452b5f..fd0193c6 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -43,3 +43,4 @@ 038 auto quick 039 auto quick 040 auto quick +041 auto quick