On Fri, Aug 05, 2016 at 03:46:07PM +0800, Eryu Guan wrote: > On Fri, Aug 05, 2016 at 12:21:47AM -0700, Darrick J. Wong wrote: > > Ensure that we can create a file with a single extent, reflink two > > blocks out of the middle of that extent, and the resulting fiemap > > reports two shared extents, instead of lazily reporting the entire > > huge extent as shared. > > > > Signed-off-by: Darrick J. Wong <darrick.w...@oracle.com> > > --- > > tests/generic/929 | 89 > > +++++++++++++++++++++++++++++++++++++++++++++++++ > > tests/generic/929.out | 17 +++++++++ > > tests/generic/group | 1 + > > 3 files changed, 107 insertions(+) > > create mode 100755 tests/generic/929 > > create mode 100644 tests/generic/929.out > > > > diff --git a/tests/generic/929 b/tests/generic/929 > > new file mode 100755 > > index 0000000..9793be0 > > --- /dev/null > > +++ b/tests/generic/929 > > @@ -0,0 +1,89 @@ > > +#! /bin/bash > > +# FS QA Test No. 929 > > +# > > +# Check that bmap/fiemap accurately report shared extents. > > +# > > +#----------------------------------------------------------------------- > > +# Copyright (c) 2016 Oracle, Inc. 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 7 15 > > + > > +_cleanup() > > +{ > > + cd / > > + rm -rf $tmp.* > > + wait > > +} > > + > > +# get standard environment, filters and checks > > +. ./common/rc > > +. ./common/filter > > +. ./common/reflink > > + > > +# real QA test starts here > > +_supported_os Linux > > Need "_supported_fs generic"
Ok. > > +_require_scratch_reflink > > +_require_fiemap > > + > > +echo "Format and mount" > > +_scratch_mkfs > $seqres.full 2>&1 > > +_scratch_mount >> $seqres.full 2>&1 > > + > > +testdir=$SCRATCH_MNT/test-$seq > > +mkdir $testdir > > + > > +blocks=5 > > +blksz=65536 > > +sz=$((blocks * blksz)) > > + > > +echo "Create the original files" > > +$XFS_IO_PROG -f -c "falloc 0 $sz" $testdir/file1 >> $seqres.full > > +_pwrite_byte 0x61 0 $sz $testdir/file1 >> $seqres.full > > +_scratch_cycle_mount > > + > > +echo "file1 extents and holes" > > +_count_extents $testdir/file1 > > +_count_holes $testdir/file1 > > + > > +_reflink_range $testdir/file1 $blksz $testdir/file2 $((blksz * 3)) $blksz > > >> $seqres.full > > +_reflink_range $testdir/file1 $((blksz * 3)) $testdir/file2 $blksz $blksz > > >> $seqres.full > > +_scratch_cycle_mount > > + > > +echo "Compare files" > > +md5sum $testdir/file1 | _filter_scratch > > +md5sum $testdir/file2 | _filter_scratch > > + > > +echo "file1 extents and holes" > > +_count_extents $testdir/file1 > > +_count_holes $testdir/file1 > > +echo "file2 extents and holes" > > +_count_extents $testdir/file2 > > +_count_holes $testdir/file2 > > +echo "file1 shared extents" > > +$XFS_IO_PROG -c 'fiemap -v' $testdir/file1 | awk '{print $5}' | grep > > '0x.*[2367aAbBfF]...$' -c > > Missing a command at the end? Nope, it echoes the number of shared extents (that's what that awk and grep globule does), which /should/ be exactly 2. (Unless I'm missing something?) --D > > Thanks, > Eryu > > > + > > +# success, all done > > +status=0 > > +exit > > diff --git a/tests/generic/929.out b/tests/generic/929.out > > new file mode 100644 > > index 0000000..e290f4c > > --- /dev/null > > +++ b/tests/generic/929.out > > @@ -0,0 +1,17 @@ > > +QA output created by 929 > > +Format and mount > > +Create the original files > > +file1 extents and holes > > +1 > > +0 > > +Compare files > > +17af09af790a9b4c79cddf72f6b642cb SCRATCH_MNT/test-929/file1 > > +79418df9c55ab7f58781cb7b9e7d5d91 SCRATCH_MNT/test-929/file2 > > +file1 extents and holes > > +5 > > +0 > > +file2 extents and holes > > +2 > > +2 > > +file1 shared extents > > +2 > > diff --git a/tests/generic/group b/tests/generic/group > > index 18b9775..732f6f6 100644 > > --- a/tests/generic/group > > +++ b/tests/generic/group > > @@ -375,3 +375,4 @@ > > 370 auto quick richacl > > 927 auto quick clone > > 928 auto quick clone dedupe > > +929 auto quick clone > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html