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, 16 insertions, 0 deletions

diff --git a/tools/testing/memblock/mmzone.c b/tools/testing/memblock/mmzone.c
new file mode 100644
index 000000000..e719450f8
--- /dev/null
+++ b/tools/testing/memblock/mmzone.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <linux/mmzone.h>
+
+struct pglist_data *first_online_pgdat(void)
+{
+	return NULL;
+}
+
+struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
+{
+	return NULL;
+}
+
+void atomic_long_set(atomic_long_t *v, long i)
+{
+}