fs/reiserfs/xattr_user.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include "reiserfs.h"
   3 #include <linux/errno.h>
   4 #include <linux/fs.h>
   5 #include <linux/pagemap.h>
   6 #include <linux/xattr.h>
   7 #include "xattr.h"
   8 #include <linux/uaccess.h>
   9
  10 static int
  11 user_get(const struct xattr_handler *handler, struct dentry *unused,
  12          struct inode *inode, const char *name, void *buffer, size_t size)
  13 {
  14         if (!reiserfs_xattrs_user(inode->i_sb))
  15                 return -EOPNOTSUPP;
  16         return reiserfs_xattr_get(inode, xattr_full_name(handler, name),
  17                                   buffer, size);
  18 }
  19
  20 static int
  21 user_set(const struct xattr_handler *handler, struct dentry *unused,
  22          struct inode *inode, const char *name, const void *buffer,
  23          size_t size, int flags)
  24 {
  25         if (!reiserfs_xattrs_user(inode->i_sb))
  26                 return -EOPNOTSUPP;
  27         return reiserfs_xattr_set(inode,
  28                                   xattr_full_name(handler, name),
  29                                   buffer, size, flags);
  30 }
  31
  32 static bool user_list(struct dentry *dentry)
  33 {
  34         return reiserfs_xattrs_user(dentry->d_sb);
  35 }
  36
  37 const struct xattr_handler reiserfs_xattr_user_handler = {
  38         .prefix = XATTR_USER_PREFIX,
  39         .get = user_get,
  40         .set = user_set,
  41         .list = user_list,
  42 };