tag	line	file	source code
urandom_fops	358	drivers/char/mem.c	filp->f_op = &urandom_fops;
urandom_fops	810	drivers/char/random.c	struct file_operations urandom_fops = {
urandom_fops	40	include/linux/random.h	extern struct file_operations random_fops, urandom_fops;