diff options
Diffstat (limited to 'fs/jffs2/xattr_user.c')
-rw-r--r-- | fs/jffs2/xattr_user.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/fs/jffs2/xattr_user.c b/fs/jffs2/xattr_user.c new file mode 100644 index 000000000000..2f8e9aa01ea0 --- /dev/null +++ b/fs/jffs2/xattr_user.c | |||
@@ -0,0 +1,52 @@ | |||
1 | /* | ||
2 | * JFFS2 -- Journalling Flash File System, Version 2. | ||
3 | * | ||
4 | * Copyright (C) 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 | #include <linux/kernel.h> | ||
12 | #include <linux/fs.h> | ||
13 | #include <linux/jffs2.h> | ||
14 | #include <linux/xattr.h> | ||
15 | #include <linux/mtd/mtd.h> | ||
16 | #include "nodelist.h" | ||
17 | |||
18 | static int jffs2_user_getxattr(struct inode *inode, const char *name, | ||
19 | void *buffer, size_t size) | ||
20 | { | ||
21 | if (!strcmp(name, "")) | ||
22 | return -EINVAL; | ||
23 | return do_jffs2_getxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size); | ||
24 | } | ||
25 | |||
26 | static int jffs2_user_setxattr(struct inode *inode, const char *name, const void *buffer, | ||
27 | size_t size, int flags) | ||
28 | { | ||
29 | if (!strcmp(name, "")) | ||
30 | return -EINVAL; | ||
31 | return do_jffs2_setxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size, flags); | ||
32 | } | ||
33 | |||
34 | static size_t jffs2_user_listxattr(struct inode *inode, char *list, size_t list_size, | ||
35 | const char *name, size_t name_len) | ||
36 | { | ||
37 | size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1; | ||
38 | |||
39 | if (list && retlen <= list_size) { | ||
40 | strcpy(list, XATTR_USER_PREFIX); | ||
41 | strcpy(list + XATTR_USER_PREFIX_LEN, name); | ||
42 | } | ||
43 | |||
44 | return retlen; | ||
45 | } | ||
46 | |||
47 | struct xattr_handler jffs2_user_xattr_handler = { | ||
48 | .prefix = XATTR_USER_PREFIX, | ||
49 | .list = jffs2_user_listxattr, | ||
50 | .set = jffs2_user_setxattr, | ||
51 | .get = jffs2_user_getxattr | ||
52 | }; | ||