blob: 00740cb32be3eb739d0b42bcc107a58947edf0ce [file] [log] [blame]
Dave Kleikampac27a0e2006-10-11 01:20:50 -07001/*
Mingming Cao617ba132006-10-11 01:20:53 -07002 * linux/fs/ext4/symlink.c
Dave Kleikampac27a0e2006-10-11 01:20:50 -07003 *
4 * Only fast symlinks left here - the rest is done by generic code. AV, 1999
5 *
6 * Copyright (C) 1992, 1993, 1994, 1995
7 * Remy Card (card@masi.ibp.fr)
8 * Laboratoire MASI - Institut Blaise Pascal
9 * Universite Pierre et Marie Curie (Paris VI)
10 *
11 * from
12 *
13 * linux/fs/minix/symlink.c
14 *
15 * Copyright (C) 1991, 1992 Linus Torvalds
16 *
Mingming Cao617ba132006-10-11 01:20:53 -070017 * ext4 symlink handling code
Dave Kleikampac27a0e2006-10-11 01:20:50 -070018 */
19
20#include <linux/fs.h>
Mingming Caodab291a2006-10-11 01:21:01 -070021#include <linux/jbd2.h>
Dave Kleikampac27a0e2006-10-11 01:20:50 -070022#include <linux/namei.h>
Christoph Hellwig3dcf5452008-04-29 18:13:32 -040023#include "ext4.h"
Dave Kleikampac27a0e2006-10-11 01:20:50 -070024#include "xattr.h"
25
Theodore Ts'oaf5bc922008-09-08 22:25:24 -040026static void *ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
Dave Kleikampac27a0e2006-10-11 01:20:50 -070027{
Mingming Cao617ba132006-10-11 01:20:53 -070028 struct ext4_inode_info *ei = EXT4_I(dentry->d_inode);
Theodore Ts'oaf5bc922008-09-08 22:25:24 -040029 nd_set_link(nd, (char *) ei->i_data);
Dave Kleikampac27a0e2006-10-11 01:20:50 -070030 return NULL;
31}
32
Arjan van de Ven754661f2007-02-12 00:55:38 -080033const struct inode_operations ext4_symlink_inode_operations = {
Dave Kleikampac27a0e2006-10-11 01:20:50 -070034 .readlink = generic_readlink,
35 .follow_link = page_follow_link_light,
36 .put_link = page_put_link,
Theodore Ts'o03010a32008-10-10 20:02:48 -040037#ifdef CONFIG_EXT4_FS_XATTR
Dave Kleikampac27a0e2006-10-11 01:20:50 -070038 .setxattr = generic_setxattr,
39 .getxattr = generic_getxattr,
Mingming Cao617ba132006-10-11 01:20:53 -070040 .listxattr = ext4_listxattr,
Dave Kleikampac27a0e2006-10-11 01:20:50 -070041 .removexattr = generic_removexattr,
42#endif
43};
44
Arjan van de Ven754661f2007-02-12 00:55:38 -080045const struct inode_operations ext4_fast_symlink_inode_operations = {
Dave Kleikampac27a0e2006-10-11 01:20:50 -070046 .readlink = generic_readlink,
Mingming Cao617ba132006-10-11 01:20:53 -070047 .follow_link = ext4_follow_link,
Theodore Ts'o03010a32008-10-10 20:02:48 -040048#ifdef CONFIG_EXT4_FS_XATTR
Dave Kleikampac27a0e2006-10-11 01:20:50 -070049 .setxattr = generic_setxattr,
50 .getxattr = generic_getxattr,
Mingming Cao617ba132006-10-11 01:20:53 -070051 .listxattr = ext4_listxattr,
Dave Kleikampac27a0e2006-10-11 01:20:50 -070052 .removexattr = generic_removexattr,
53#endif
54};