tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 *unused, struct inode *inode,
23 const char *name, void *buffer, size_t size)
24{
25 if (!test_opt(inode->i_sb, XATTR_USER))
26 return -EOPNOTSUPP;
27 return ext4_xattr_get(inode, EXT4_XATTR_INDEX_USER,
28 name, buffer, size);
29}
30
31static int
32ext4_xattr_user_set(const struct xattr_handler *handler,
33 struct dentry *unused, struct inode *inode,
34 const char *name, const void *value,
35 size_t size, int flags)
36{
37 if (!test_opt(inode->i_sb, XATTR_USER))
38 return -EOPNOTSUPP;
39 return ext4_xattr_set(inode, EXT4_XATTR_INDEX_USER,
40 name, value, size, flags);
41}
42
43const struct xattr_handler ext4_xattr_user_handler = {
44 .prefix = XATTR_USER_PREFIX,
45 .list = ext4_xattr_user_list,
46 .get = ext4_xattr_user_get,
47 .set = ext4_xattr_user_set,
48};