tag	line	file	source code
proc_readdir	20	fs/proc/base.c	proc_readdir,    /* readdir */
proc_readdir	43	fs/proc/net.c	proc_readdir,    /* readdir */
proc_readdir	414	fs/proc/root.c	int error = proc_readdir(inode, filp, dirent, filldir);
proc_readdir	186	include/linux/proc_fs.h	extern int proc_readdir(struct inode *, struct file *, void *, filldir_t);