/* -*- linux-c -*- --------------------------------------------------------- * * * linux/fs/autofs/dir.c * *  Copyright 1997 Transmeta Corporation -- All Rights Reserved * * This file is part of the Linux kernel and is made available under * the terms of the GNU General Public License, version 2, or at your * option, any later version, incorporated herein by reference. * * ------------------------------------------------------------------------- */#include "autofs_i.h"static int autofs_dir_readdir(struct inode *inode, struct file *filp,			       void *dirent, filldir_t filldir){	if (!inode || !S_ISDIR(inode->i_mode))		return -ENOTDIR;	switch((unsigned long) filp->f_pos)	{	case 0:		if (filldir(dirent, ".", 1, 0, inode->i_ino) < 0)			return 0;		filp->f_pos++;		/* fall through */	case 1:		if (filldir(dirent, "..", 2, 1, AUTOFS_ROOT_INO) < 0)			return 0;		filp->f_pos++;		/* fall through */	}	return 1;}static int autofs_dir_lookup(struct inode *dir, const char *name, int len,			      struct inode **result){	*result = dir;	if (!len)		return 0;	if (name[0] == '.') {		if (len == 1)			return 0;		if (name[1] == '.' && len == 2) {			/* Return the root directory */			*result = iget(dir->i_sb,AUTOFS_ROOT_INO);			iput(dir);			return 0;		}	}	*result = NULL;	iput(dir);	return -ENOENT;		/* No other entries */}static struct file_operations autofs_dir_operations = {	NULL,			/* lseek */	NULL,			/* read */	NULL,			/* write */	autofs_dir_readdir,	/* readdir */	NULL,			/* select */	NULL,			/* ioctl */	NULL,			/* mmap */	NULL,			/* open */	NULL,			/* release */	NULL			/* fsync */};struct inode_operations autofs_dir_inode_operations = {	&autofs_dir_operations,	/* file operations */	NULL,			/* create */	autofs_dir_lookup,	/* lookup */	NULL,			/* link */	NULL,			/* unlink */	NULL,			/* symlink */	NULL,			/* mkdir */	NULL,			/* rmdir */	NULL,			/* mknod */	NULL,			/* rename */	NULL,			/* readlink */	NULL,			/* follow_link */	NULL,			/* read_page */	NULL,			/* writepage */	NULL,			/* bmap */	NULL,			/* truncate */	NULL			/* permission */};