11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * JFFS2 -- Journalling Flash File System, Version 2. 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 2001, 2002 Red Hat, Inc. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Created by David Woodhouse <dwmw2@infradead.org> 71da177e4SLinus Torvalds * 81da177e4SLinus Torvalds * For licensing information, see the file 'LICENCE' in this directory. 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * $Id: symlink.c,v 1.14 2004/11/16 20:36:12 dwmw2 Exp $ 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds */ 131da177e4SLinus Torvalds 141da177e4SLinus Torvalds 151da177e4SLinus Torvalds #include <linux/kernel.h> 161da177e4SLinus Torvalds #include <linux/slab.h> 171da177e4SLinus Torvalds #include <linux/fs.h> 181da177e4SLinus Torvalds #include <linux/namei.h> 191da177e4SLinus Torvalds #include "nodelist.h" 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd); 221da177e4SLinus Torvalds static void jffs2_put_link(struct dentry *dentry, struct nameidata *nd); 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds struct inode_operations jffs2_symlink_inode_operations = 251da177e4SLinus Torvalds { 261da177e4SLinus Torvalds .readlink = generic_readlink, 271da177e4SLinus Torvalds .follow_link = jffs2_follow_link, 281da177e4SLinus Torvalds .put_link = jffs2_put_link, 291da177e4SLinus Torvalds .setattr = jffs2_setattr 301da177e4SLinus Torvalds }; 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd) 331da177e4SLinus Torvalds { 341da177e4SLinus Torvalds unsigned char *buf; 351da177e4SLinus Torvalds buf = jffs2_getlink(JFFS2_SB_INFO(dentry->d_inode->i_sb), JFFS2_INODE_INFO(dentry->d_inode)); 361da177e4SLinus Torvalds nd_set_link(nd, buf); 371da177e4SLinus Torvalds return 0; 381da177e4SLinus Torvalds } 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds static void jffs2_put_link(struct dentry *dentry, struct nameidata *nd) 411da177e4SLinus Torvalds { 421da177e4SLinus Torvalds char *s = nd_get_link(nd); 431da177e4SLinus Torvalds if (!IS_ERR(s)) 441da177e4SLinus Torvalds kfree(s); 451da177e4SLinus Torvalds } 46