LU-14627 tests: Create unload_modules_local

[fs/lustre-release.git] / lustre / scripts / lustre_rmmod

diff --git a/lustre/scripts/lustre_rmmod b/lustre/scripts/lustre_rmmod
index 9da25ff..637c6a0 100755 (executable)
--- a/lustre/scripts/lustre_rmmod
+++ b/lustre/scripts/lustre_rmmod
@@ -111,6 +111,20 @@ if $DEBUG; then
        $LCTL mark "$SCRIPT_NAME : Start debug"
 fi
 
+# LNet may have an internal ref which can prevent LND modules from
+# unloading. Try to drop it before unloading modules.
+# NB: we squelch stderr because lnetctl/lctl may complain about
+# LNet being "busy", but this is normal. We're making a best effort
+# here.
+if lsmod | grep -q lnet; then
+       # Prefer lnetctl if it is present
+       if [ -n "$(which lnetctl 2>/dev/null)" ]; then
+               lnetctl lnet unconfigure 2>/dev/null
+       elif [ -n "$(which lctl 2>/dev/null)" ]; then
+               lctl net down 2>/dev/null
+       fi
+fi
+
 for mod in ${modules[*]}; do
        unload_dep_modules_inclusive $mod || exit 1
 done