Merge branch 'upstream/jump-label-noearly' of git://git.kernel.org/pub/scm/linux...
[deliverable/linux.git] / fs / reiserfs / xattr_user.c
... / ...
CommitLineData
1#include <linux/reiserfs_fs.h>
2#include <linux/errno.h>
3#include <linux/fs.h>
4#include <linux/pagemap.h>
5#include <linux/xattr.h>
6#include <linux/reiserfs_xattr.h>
7#include <asm/uaccess.h>
8
9static int
10user_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
11 int handler_flags)
12{
13
14 if (strlen(name) < sizeof(XATTR_USER_PREFIX))
15 return -EINVAL;
16 if (!reiserfs_xattrs_user(dentry->d_sb))
17 return -EOPNOTSUPP;
18 return reiserfs_xattr_get(dentry->d_inode, name, buffer, size);
19}
20
21static int
22user_set(struct dentry *dentry, const char *name, const void *buffer,
23 size_t size, int flags, int handler_flags)
24{
25 if (strlen(name) < sizeof(XATTR_USER_PREFIX))
26 return -EINVAL;
27
28 if (!reiserfs_xattrs_user(dentry->d_sb))
29 return -EOPNOTSUPP;
30 return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags);
31}
32
33static size_t user_list(struct dentry *dentry, char *list, size_t list_size,
34 const char *name, size_t name_len, int handler_flags)
35{
36 const size_t len = name_len + 1;
37
38 if (!reiserfs_xattrs_user(dentry->d_sb))
39 return 0;
40 if (list && len <= list_size) {
41 memcpy(list, name, name_len);
42 list[name_len] = '\0';
43 }
44 return len;
45}
46
47const struct xattr_handler reiserfs_xattr_user_handler = {
48 .prefix = XATTR_USER_PREFIX,
49 .get = user_get,
50 .set = user_set,
51 .list = user_list,
52};
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