ANDROID: workqueue: add vendor hook for wq lockup information

- Add the hook to provide additional information like
   a task scheduling log.

Bug: 169374262

Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Change-Id: I203dbc6faa77687ea48769f76658d28b29ef46fd
(cherry picked from commit 2ea974a00c7bdbbee140d68d8867ddcbfb529ecc)

kernel/workqueue.c

@@ -53,6 +53,10 @@
 
 #include "workqueue_internal.h"
 
+#include <trace/hooks/wqlockup.h>
+/* events/workqueue.h uses default TRACE_INCLUDE_PATH */
+#undef TRACE_INCLUDE_PATH
+
 enum {
 	/*
 	 * worker_pool flags
@@ -5789,6 +5793,7 @@ static void wq_watchdog_timer_fn(struct timer_list *unused)
 			pr_cont_pool_info(pool);
 			pr_cont(" stuck for %us!\n",
 				jiffies_to_msecs(jiffies - pool_ts) / 1000);
+			trace_android_vh_wq_lockup_pool(pool->cpu, pool_ts);
 		}
 	}