_raw_read_lock_irq  101 include/linux/rwlock.h #define read_lock_irq(lock)		_raw_read_lock_irq(lock)
_raw_read_lock_irq   22 include/linux/rwlock_api_smp.h void __lockfunc _raw_read_lock_irq(rwlock_t *lock)	__acquires(lock);
_raw_read_lock_irq  241 kernel/locking/spinlock.c EXPORT_SYMBOL(_raw_read_lock_irq);