修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/include/linux/percpu-rwsem.h
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@@ -107,7 +107,6 @@
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 static inline void percpu_up_read(struct percpu_rw_semaphore *sem)
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 {
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-	_trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
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 	rwsem_release(&sem->dep_map, _RET_IP_);
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 	preempt_disable();
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@@ -130,6 +129,7 @@
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 		this_cpu_dec(*sem->read_count);
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 		rcuwait_wake_up(&sem->writer);
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 	}
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+	_trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
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 	preempt_enable();
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 }
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