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1da177e4 LT |
1 | /* |
2 | * JFFS2 -- Journalling Flash File System, Version 2. | |
3 | * | |
4 | * Copyright (C) 2001, 2002 Red Hat, Inc. | |
5 | * | |
6 | * Created by David Woodhouse <dwmw2@infradead.org> | |
7 | * | |
8 | * For licensing information, see the file 'LICENCE' in this directory. | |
9 | * | |
10 | * $Id: symlink.c,v 1.14 2004/11/16 20:36:12 dwmw2 Exp $ | |
11 | * | |
12 | */ | |
13 | ||
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/slab.h> | |
17 | #include <linux/fs.h> | |
18 | #include <linux/namei.h> | |
19 | #include "nodelist.h" | |
20 | ||
21 | static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd); | |
22 | static void jffs2_put_link(struct dentry *dentry, struct nameidata *nd); | |
23 | ||
24 | struct inode_operations jffs2_symlink_inode_operations = | |
25 | { | |
26 | .readlink = generic_readlink, | |
27 | .follow_link = jffs2_follow_link, | |
28 | .put_link = jffs2_put_link, | |
29 | .setattr = jffs2_setattr | |
30 | }; | |
31 | ||
32 | static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd) | |
33 | { | |
34 | unsigned char *buf; | |
35 | buf = jffs2_getlink(JFFS2_SB_INFO(dentry->d_inode->i_sb), JFFS2_INODE_INFO(dentry->d_inode)); | |
36 | nd_set_link(nd, buf); | |
37 | return 0; | |
38 | } | |
39 | ||
40 | static void jffs2_put_link(struct dentry *dentry, struct nameidata *nd) | |
41 | { | |
42 | char *s = nd_get_link(nd); | |
43 | if (!IS_ERR(s)) | |
44 | kfree(s); | |
45 | } |