workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted

apply_wqattrs_commit() updates node_nr_active->max unconditionally.
wq->node_nr_active[] is only allocated for unbound workqueues, so guard
the call before per-cpu workqueues start using this path.

No functional change: only unbound workqueues reach apply_wqattrs_*()
today.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/scripts/modules-check.sh b/scripts/modules-check.sh
new file mode 100755
index 000000000..4c8da90de
--- /dev/null
+++ b/scripts/modules-check.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+if [ $# != 1 ]; then
+	echo "Usage: $0 <modules.order>" >& 2
+	exit 1
+fi
+
+exit_code=0
+
+# Check uniqueness of module names
+check_same_name_modules()
+{
+	for m in $(sed 's:.*/::' "$1" | sort | uniq -d)
+	do
+		echo "error: the following would cause module name conflict:" >&2
+		sed -n "/\/$m/s:^\(.*\)\.o\$:  \1.ko:p" "$1" >&2
+		exit_code=1
+	done
+}
+
+check_same_name_modules "$1"
+
+exit $exit_code