__kfifo_in        497 include/linux/kfifo.h 	__kfifo_in(__kfifo, __buf, __n); \
__kfifo_in        766 include/linux/kfifo.h extern unsigned int __kfifo_in(struct __kfifo *fifo,
__kfifo_in        126 lib/kfifo.c    EXPORT_SYMBOL(__kfifo_in);