From 0199ca71d5984e104c14f9bc12f6288b7ddcf71e Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Wed, 25 May 2016 22:57:29 -0700 Subject: [PATCH] xfs: check accounting during refcountbt expansion Ensure that refcountbt allocations during truncate operations come from the per-AG reservation and are not charged to the transaction. Reported-by: Christoph Hellwig Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig Signed-off-by: Eryu Guan --- tests/xfs/309 | 95 +++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/309.out | 10 +++++ tests/xfs/group | 1 + 3 files changed, 106 insertions(+) create mode 100755 tests/xfs/309 create mode 100644 tests/xfs/309.out diff --git a/tests/xfs/309 b/tests/xfs/309 new file mode 100755 index 00000000..3578690e --- /dev/null +++ b/tests/xfs/309 @@ -0,0 +1,95 @@ +#! /bin/bash +# FS QA Test No. 309 +# +# Ensure that we can create enough distinct reflink entries to force creation +# of a multi-level refcount btree by reflinking a file a number of times and +# truncating the copies at successively lower sizes. Delete and recreate a few +# times to exercise the refcount btree grow/shrink functions. +# +#----------------------------------------------------------------------- +# Copyright (c) 2016, Oracle and/or its affiliates. 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 + +_cleanup() +{ + cd / + _scratch_unmount > /dev/null 2>&1 + rm -rf $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink + +rm -f $seqres.full + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +echo "Create the original file blocks" +blksz="$(stat -f $testdir -c '%S')" +nr_blks=$((2 * blksz / 12)) + +for i in 1 2 x; do + _pwrite_byte 0x61 0 $((blksz * nr_blks)) $testdir/file1 >> $seqres.full + + echo "$i: Reflink a bunch of times" + seq 1 $nr_blks | while read nr; do + _cp_reflink $testdir/file1 $testdir/file1.$nr >> $seqres.full + done + sync + + echo "$i: Truncate files" + seq 1 $nr_blks | while read nr; do + truncate -s $((blksz * (nr_blks - nr))) $testdir/file1.$nr >> $seqres.full + done + + _scratch_unmount + _check_scratch_fs + _scratch_mount + + test $i = "x" && break + + echo "$i: Delete both files" + rm -rf $testdir + mkdir -p $testdir + _scratch_unmount + _check_scratch_fs + _scratch_mount +done + +# success, all done +status=0 +exit diff --git a/tests/xfs/309.out b/tests/xfs/309.out new file mode 100644 index 00000000..9dabdf34 --- /dev/null +++ b/tests/xfs/309.out @@ -0,0 +1,10 @@ +QA output created by 309 +Create the original file blocks +1: Reflink a bunch of times +1: Truncate files +1: Delete both files +2: Reflink a bunch of times +2: Truncate files +2: Delete both files +x: Reflink a bunch of times +x: Truncate files diff --git a/tests/xfs/group b/tests/xfs/group index d41d2c35..19b3f55d 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -288,3 +288,4 @@ 306 auto dangerous quick 307 auto quick clone 308 auto quick clone +309 auto clone -- 2.39.5