tag	line	file	source code
routine	6	include/linux/interrupt.h	void (*routine)(void *);
routine	1476	kernel/chr_drv/keyboard.c	bh_base[KEYBOARD_BH].routine = kbd_bh;
routine	1479	kernel/chr_drv/serial.c	bh_base[SERIAL_BH].routine = do_softint;
routine	1492	kernel/chr_drv/tty_io.c	bh_base[TTY_BH].routine = tty_bh_routine;
routine	57	kernel/irq.c	if (bh->routine != NULL)
routine	58	kernel/irq.c	bh->routine(bh->data);
routine	280	kernel/irq.c	bh_base[i].routine = NULL;
routine	919	net/tcp/sock.c	bh_base[INET_BH].routine = inet_bh;