LXR linux/fs/reiserfs/xattr

   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
  10static int
  11user_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
  20static int
  21user_set(const struct xattr_handler *handler, struct user_namespace *mnt_userns,
  22         struct dentry *unused,
  23         struct inode *inode, const char *name, const void *buffer,
  24         size_t size, int flags)
  25{
  26        if (!reiserfs_xattrs_user(inode->i_sb))
  27                return -EOPNOTSUPP;
  28        return reiserfs_xattr_set(inode,
  29                                  xattr_full_name(handler, name),
  30                                  buffer, size, flags);
  31}
  32
  33static bool user_list(struct dentry *dentry)
  34{
  35        return reiserfs_xattrs_user(dentry->d_sb);
  36}
  37
  38const struct xattr_handler reiserfs_xattr_user_handler = {
  39        .prefix = XATTR_USER_PREFIX,
  40        .get = user_get,
  41        .set = user_set,
  42        .list = user_list,
  43};
  44