Root/fs/ext4/symlink.c

1/*
2 * linux/fs/ext4/symlink.c
3 *
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 *
17 * ext4 symlink handling code
18 */
19
20#include <linux/fs.h>
21#include <linux/jbd2.h>
22#include <linux/namei.h>
23#include "ext4.h"
24#include "xattr.h"
25
26static void *ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
27{
28    struct ext4_inode_info *ei = EXT4_I(dentry->d_inode);
29    nd_set_link(nd, (char *) ei->i_data);
30    return NULL;
31}
32
33const struct inode_operations ext4_symlink_inode_operations = {
34    .readlink = generic_readlink,
35    .follow_link = page_follow_link_light,
36    .put_link = page_put_link,
37#ifdef CONFIG_EXT4_FS_XATTR
38    .setxattr = generic_setxattr,
39    .getxattr = generic_getxattr,
40    .listxattr = ext4_listxattr,
41    .removexattr = generic_removexattr,
42#endif
43};
44
45const struct inode_operations ext4_fast_symlink_inode_operations = {
46    .readlink = generic_readlink,
47    .follow_link = ext4_follow_link,
48#ifdef CONFIG_EXT4_FS_XATTR
49    .setxattr = generic_setxattr,
50    .getxattr = generic_getxattr,
51    .listxattr = ext4_listxattr,
52    .removexattr = generic_removexattr,
53#endif
54};
55

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