tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include "reiserfs.h"
2#include <linux/errno.h>
3#include <linux/fs.h>
4#include <linux/pagemap.h>
5#include <linux/xattr.h>
6#include "xattr.h"
7#include <linux/uaccess.h>
8
9static int
10user_get(const struct xattr_handler *handler, struct dentry *dentry,
11 const char *name, void *buffer, size_t size)
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(d_inode(dentry), name, buffer, size);
19}
20
21static int
22user_set(const struct xattr_handler *handler, struct dentry *dentry,
23 const char *name, const void *buffer, size_t size, int 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(d_inode(dentry), name, buffer, size, flags);
31}
32
33static size_t user_list(const struct xattr_handler *handler,
34 struct dentry *dentry, char *list, size_t list_size,
35 const char *name, size_t name_len)
36{
37 const size_t len = name_len + 1;
38
39 if (!reiserfs_xattrs_user(dentry->d_sb))
40 return 0;
41 if (list && len <= list_size) {
42 memcpy(list, name, name_len);
43 list[name_len] = '\0';
44 }
45 return len;
46}
47
48const struct xattr_handler reiserfs_xattr_user_handler = {
49 .prefix = XATTR_USER_PREFIX,
50 .get = user_get,
51 .set = user_set,
52 .list = user_list,
53};