From: James Simmons <uja.ornl@yahoo.com>
Date: Tue, 16 Oct 2018 17:24:00 +0000 (-0400)
Subject: LU-10626 test: create custom udev rule
X-Git-Tag: 2.12.0-RC1~36
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=73ecd83a24e220b8097facf5bf3f5d93f523702c;ds=sidebyside

LU-10626 test: create custom udev rule

Some lustre developer do all their testing from their lustre
source tree instead of installing it into an image. Since lustre
is not installed into the image the udev rule for lctl set_param
doesn't work since its not in /etc/udev/rules.d. Additonally udev
rules require using the absolute paths for executables. To handle
this setup create a special udev rule on the fly using $LCTL to
be placed into /etc/udev/rules.d.

Change-Id: I84c55450c866977650b3c6d4190e233a24eb03d8
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: https://review.whamcloud.com/33143
Reviewed-by: Nathaniel Clark <nclark@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/tests/test-framework.sh b/lustre/tests/test-framework.sh
index 6eb5421..9caa3f7 100755
--- a/lustre/tests/test-framework.sh
+++ b/lustre/tests/test-framework.sh
@@ -610,6 +610,15 @@ load_modules_local() {
 		return 0
 	fi
 
+	# Create special udev test rules on every node
+	if [ -f $LUSTRE/lustre/conf/99-lustre.rules ]; then {
+		sed -e 's|/usr/sbin/lctl|$LCTL|g' $LUSTRE/lustre/conf/99-lustre.rules > /etc/udev/rules.d/99-lustre-test.rules
+	} else {
+		echo "SUBSYSTEM==\"lustre\", ACTION==\"change\", ENV{PARAM}==\"?*\", RUN+=\"$LCTL set_param '\$env{PARAM}=\$env{SETTING}'\"" > /etc/udev/rules.d/99-lustre-test.rules
+	} fi
+	udevadm control --reload-rules
+	udevadm trigger
+
 	echo Loading modules from $LUSTRE
 
 	local ncpus
@@ -755,12 +764,20 @@ unload_modules() {
 
 	$LUSTRE_RMMOD ldiskfs || return 2
 
+	[ -f /etc/udev/rules.d/99-lustre-test.rules ] &&
+		rm /etc/udev/rules.d/99-lustre-test.rules
+	udevadm control --reload-rules
+	udevadm trigger
+
 	if $LOAD_MODULES_REMOTE; then
 		local list=$(comma_list $(remote_nodes_list))
 		if [ -n "$list" ]; then
 			echo "unloading modules on: '$list'"
 			do_rpc_nodes "$list" $LUSTRE_RMMOD ldiskfs
 			do_rpc_nodes "$list" check_mem_leak
+			do_rpc_nodes "$list" "rm /etc/udev/rules.d/99-lustre-test.rules"
+			do_rpc_nodes "$list" "udevadm control --reload-rules"
+			do_rpc_nodes "$list" "udevadm trigger"
 		fi
 	fi