add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/kernel/locking/percpu-rwsem.c
..
..
@@ -166,6 +166,7 @@
166
166
 	if (wait) {
167
167
 		wq_entry.flags |= WQ_FLAG_EXCLUSIVE | reader * WQ_FLAG_CUSTOM;
168
168
 		__add_wait_queue_entry_tail(&sem->waiters, &wq_entry);
169
+		trace_android_vh_percpu_rwsem_wq_add(sem, reader);
169
170
 	}
170
171
 	spin_unlock_irq(&sem->waiters.lock);
171
172
 
..
..
@@ -258,7 +259,6 @@
258
259
 
259
260
 void percpu_up_write(struct percpu_rw_semaphore *sem)
260
261
 {
261
-	trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
262
262
 	rwsem_release(&sem->dep_map, _RET_IP_);
263
263
 
264
264
 	/*
..
..
@@ -284,6 +284,7 @@
284
284
 	 * exclusive write lock because its counting.
285
285
 	 */
286
286
 	rcu_sync_exit(&sem->rss);
287
+	trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
287
288
 }
288
289
 EXPORT_SYMBOL_GPL(percpu_up_write);
289
290