tag	line	file	source code
def_blk_fops	115	fs/devices.c	struct file_operations def_blk_fops = {
def_blk_fops	128	fs/devices.c	&def_blk_fops,    /* default file operations */
def_blk_fops	318	include/linux/fs.h	extern struct file_operations def_blk_fops;