1 files changed, 61 insertions, 0 deletions
diff --git a/test/shell/lvextend-snapshot-dmeventd.sh b/test/shell/lvextend-snapshot-dmeventd.sh
new file mode 100644
index 0000000..98bec19
--- /dev/null
+++ b/test/shell/lvextend-snapshot-dmeventd.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+# Copyright (C) 2010-2012 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+. lib/test
+
+extend() {
+	lvextend --use-policies --config "activation { snapshot_autoextend_threshold = $1 }" $vg/snap
+}
+
+write_() {
+	dd if=/dev/zero of="$DM_DEV_DIR/$vg/snap" bs=1k count=$2 seek=$1
+}
+
+percent_() {
+	get lv_field $vg/snap snap_percent | cut -d. -f1
+}
+
+wait_for_change_() {
+	# dmeventd only checks every 10 seconds :(
+	for i in $(seq 1 15) ; do
+		test "$(percent_)" != "$1" && return
+		sleep 1
+	done
+
+	return 1  # timeout
+}
+
+aux prepare_dmeventd
+aux prepare_vg 2
+
+lvcreate -L16M -n base $vg
+lvcreate -s -L4M -n snap $vg/base
+
+write_ 0 1000
+test 24 -eq $(percent_)
+
+lvchange --monitor y $vg/snap
+
+write_ 1000 1700
+pre=$(percent_)
+wait_for_change_ $pre
+test $pre -gt $(percent_)
+
+# check that a second extension happens; we used to fail to extend when the
+# utilisation ended up between THRESH and (THRESH + 10)... see RHBZ 754198
+# (the utilisation after the write should be 57 %)
+
+write_ 2700 2000
+pre=$(percent_)
+wait_for_change_ $pre
+test $pre -gt $(percent_)
+
+vgremove -f $vg