new file mode 100755
@@ -0,0 +1,65 @@
+#! /bin/bash
+# FS QA Test No. 326
+#
+# TEST busy loop of write and delete in a filesystem.
+# Sometimes writes will failed on NO_SPACE when disk almost full
+# in btrfs. It is long-term problem since very beginning for btrfs
+#
+# This issue was fixed by the patchset named:
+#
+# btrfs: Fix no_space on dd and rm loop < from zhaolei@cn.fujitsu.com >
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015 Fujitsu. All Rights Reserved.
+# Author: Wang Yanfeng <wangyf-fnst@cn.fujitsu.com>
+#
+# 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
+trap "exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_need_to_be_root
+_supported_fs generic
+_supported_os Linux
+_require_scratch
+
+rm -f $seqres.full
+
+dev_size=$((512 * 1024 * 1024)) # 512MB filesystem
+_scratch_mkfs_sized $dev_size >>$seqres.full 2>&1
+_scratch_mount
+
+for ((i = 0; i < 10; i++)); do
+ echo "loop $i" >>$seqres.full
+
+ $XFS_IO_PROG -f -c "pwrite -b 1m 0 400m" "$SCRATCH_MNT"/file | \
+_filter_xfs_io | _filter_scratch
+
+ rm -f "$SCRATCH_MNT"/file
+done
+
+status=0
+exit
new file mode 100644
@@ -0,0 +1,21 @@
+QA output created by 326
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 419430400/419430400 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
@@ -194,3 +194,4 @@
323 auto aio stress
324 auto fsr quick
325 auto quick data log
+326 auto
generic/326 is a case about testing whether writing failed on NO_SPACE in a busy loop of write and delete when disk almost full. It is a long-term problem since very beginning in btrfs, and has been fixed by patchset titled "btrfs: Fix no_space on dd and rm loop" from zhaolei@cn.fujitsu.com. Signed-off-by: Wang Yanfeng <wangyf-fnst@cn.fujitsu.com> --- v1->v2: -add the 'tmp=/tmp/$$' -use xfs_io to replace dd and _fail -modify the description of case tests/generic/326 | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/326.out | 21 +++++++++++++++++ tests/generic/group | 1 + 3 files changed, 87 insertions(+) create mode 100755 tests/generic/326 create mode 100644 tests/generic/326.out