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, 46 insertions, 0 deletions

diff --git a/include/trace/events/qla.h b/include/trace/events/qla.h
new file mode 100644
index 000000000..8800c3552
--- /dev/null
+++ b/include/trace/events/qla.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(_TRACE_QLA_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_QLA_H_
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM qla
+
+#define QLA_MSG_MAX 256
+
+#pragma GCC diagnostic push
+#ifndef __clang__
+#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
+#endif
+
+DECLARE_EVENT_CLASS(qla_log_event,
+	TP_PROTO(const char *buf,
+		struct va_format *vaf),
+
+	TP_ARGS(buf, vaf),
+
+	TP_STRUCT__entry(
+		__string(buf, buf)
+		__vstring(msg, vaf->fmt, vaf->va)
+	),
+	TP_fast_assign(
+		__assign_str(buf);
+		__assign_vstr(msg, vaf->fmt, vaf->va);
+	),
+
+	TP_printk("%s %s", __get_str(buf), __get_str(msg))
+);
+
+#pragma GCC diagnostic pop
+
+DEFINE_EVENT(qla_log_event, ql_dbg_log,
+	TP_PROTO(const char *buf, struct va_format *vaf),
+	TP_ARGS(buf, vaf)
+);
+
+#endif /* _TRACE_QLA_H */
+
+#define TRACE_INCLUDE_FILE qla
+
+#include <trace/define_trace.h>