[PATCH 2/2] dm-thinp demo test

Eric Sandeen
2015-10-21T20:56:10Z

Fairly trivial test to use the dm-thin infrastructure.

Right now it exhausts space in queue-on-error mode,
adds more space, does a bit more IO, then unmounts &
checks the fs.

Not sure if that's valid to test, but it works here and
demonstrates the common/dmthin helpers.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

diff --git a/tests/generic/115 b/tests/generic/115
new file mode 100755
index 0000000..ef9d881
--- /dev/null
+++ b/tests/generic/115
@@ -0,0 +1,85 @@
+#! /bin/bash
+# FS QA Test No. generic/115
+#
+# Test very basic thin device usage, exhaustion, and growth
+#
+# Copyright (c) 2015 Red Hat, 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 15
+
+BACKING_SIZE=$((500 * 1024 * 1024 / 512)) # 500M
+VIRTUAL_SIZE=$((10 * $BACKING_SIZE)) # 5000M
+GROW_SIZE=$((100 * 1024 * 1024 / 512)) # 100M
+
+_cleanup()
+{
+ _dmthin_cleanup
+ rm -f $tmp.*
+}
+
+_setup_thin()
+{
+ _dmthin_init $BACKING_SIZE $VIRTUAL_SIZE
+ _dmthin_set_queue
+ _mkfs_dev $DMTHIN_VOL_DEV
+ _dmthin_mount
+}
+
+_workout()
+{
+ # Overfill it by a bit
+ for I in `seq 1 500`; do
+ $XFS_IO_PROG -f -c "pwrite -W 0 1M" $SCRATCH_MNT/file$I &>/dev/null
+ done
+
+ sync
+
+ _dmthin_grow $GROW_SIZE
+
+ # Write a little more, but don't fill
+ for I in `seq 501 510`; do
+ $XFS_IO_PROG -f -c "pwrite 0 1M" $SCRATCH_MNT/file$I &>/dev/null
+ done
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/dmthin
+
+_supported_fs generic
+_supported_os Linux
+_need_to_be_root
+_require_dm_target thin
+
+_setup_thin
+_dmthin_set_queue
+_workout
+_dmthin_check_fs
+_dmthin_cleanup
+
+echo "=== completed"
+
+status=0
+exit
diff --git a/tests/generic/115.out b/tests/generic/115.out
new file mode 100644
index 0000000..39ebd87
--- /dev/null
+++ b/tests/generic/115.out
@@ -0,0 +1,2 @@
+QA output created by 115
+=== completed
diff --git a/tests/generic/group b/tests/generic/group
index 1dd4269..729578d 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -115,6 +115,7 @@
112 rw aio auto quick
113 rw aio auto quick
114 rw aio auto quick
+115 rw thin auto quick
117 attr auto quick
120 other auto quick
123 perms auto quick