tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * JFFS2 -- Journalling Flash File System, Version 2.
3 *
4 * Copyright © 2006 NEC Corporation
5 *
6 * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
7 *
8 * For licensing information, see the file 'LICENCE' in this directory.
9 *
10 */
11
12#include <linux/kernel.h>
13#include <linux/fs.h>
14#include <linux/jffs2.h>
15#include <linux/xattr.h>
16#include <linux/mtd/mtd.h>
17#include "nodelist.h"
18
19static int jffs2_user_getxattr(const struct xattr_handler *handler,
20 struct dentry *dentry, const char *name,
21 void *buffer, size_t size)
22{
23 if (!strcmp(name, ""))
24 return -EINVAL;
25 return do_jffs2_getxattr(d_inode(dentry), JFFS2_XPREFIX_USER,
26 name, buffer, size);
27}
28
29static int jffs2_user_setxattr(const struct xattr_handler *handler,
30 struct dentry *dentry, const char *name,
31 const void *buffer, size_t size, int flags)
32{
33 if (!strcmp(name, ""))
34 return -EINVAL;
35 return do_jffs2_setxattr(d_inode(dentry), JFFS2_XPREFIX_USER,
36 name, buffer, size, flags);
37}
38
39static size_t jffs2_user_listxattr(const struct xattr_handler *handler,
40 struct dentry *dentry, char *list,
41 size_t list_size, const char *name,
42 size_t name_len)
43{
44 size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1;
45
46 if (list && retlen <= list_size) {
47 strcpy(list, XATTR_USER_PREFIX);
48 strcpy(list + XATTR_USER_PREFIX_LEN, name);
49 }
50
51 return retlen;
52}
53
54const struct xattr_handler jffs2_user_xattr_handler = {
55 .prefix = XATTR_USER_PREFIX,
56 .list = jffs2_user_listxattr,
57 .set = jffs2_user_setxattr,
58 .get = jffs2_user_getxattr
59};