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1/*
2 * linux/fs/ext4/xattr_user.c
3 * Handler for extended user attributes.
4 *
5 * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
6 */
7
8#include <linux/string.h>
9#include <linux/fs.h>
10#include "ext4_jbd2.h"
11#include "ext4.h"
12#include "xattr.h"
13
14static bool
15ext4_xattr_user_list(struct dentry *dentry)
16{
17 return test_opt(dentry->d_sb, XATTR_USER);
18}
19
20static int
21ext4_xattr_user_get(const struct xattr_handler *handler,
22 struct dentry *dentry, const char *name,
23 void *buffer, size_t size)
24{
25 if (!test_opt(dentry->d_sb, XATTR_USER))
26 return -EOPNOTSUPP;
27 return ext4_xattr_get(d_inode(dentry), EXT4_XATTR_INDEX_USER,
28 name, buffer, size);
29}
30
31static int
32ext4_xattr_user_set(const struct xattr_handler *handler,
33 struct dentry *dentry, const char *name,
34 const void *value, size_t size, int flags)
35{
36 if (!test_opt(dentry->d_sb, XATTR_USER))
37 return -EOPNOTSUPP;
38 return ext4_xattr_set(d_inode(dentry), EXT4_XATTR_INDEX_USER,
39 name, value, size, flags);
40}
41
42const struct xattr_handler ext4_xattr_user_handler = {
43 .prefix = XATTR_USER_PREFIX,
44 .list = ext4_xattr_user_list,
45 .get = ext4_xattr_user_get,
46 .set = ext4_xattr_user_set,
47};