/* SPDX-License-Identifier: GPL-2.0 */

  /*
   * Copyright (c) 2012 Netapp, Inc. All rights reserved.
   *
   * Function and structures exported by the NFS module
   * for use by NFS version-specific modules.
   */
  #ifndef __LINUX_INTERNAL_NFS_H
  #define __LINUX_INTERNAL_NFS_H
  
  #include <linux/fs.h>
  #include <linux/sunrpc/sched.h>
  #include <linux/nfs_xdr.h>
  
  struct nfs_subversion {
  	struct module *owner;	/* THIS_MODULE pointer */
  	struct file_system_type *nfs_fs;	/* NFS filesystem type */
  	const struct rpc_version *rpc_vers;	/* NFS version information */
  	const struct nfs_rpc_ops *rpc_ops;	/* NFS operations */

  	const struct super_operations *sops;	/* NFS Super operations */
  	const struct xattr_handler **xattr;	/* NFS xattr handlers */

  	struct list_head list;		/* List of NFS versions */
  };

  struct nfs_subversion *get_nfs_version(unsigned int);
  void put_nfs_version(struct nfs_subversion *);
  void register_nfs_version(struct nfs_subversion *);
  void unregister_nfs_version(struct nfs_subversion *);
  
  #endif /* __LINUX_INTERNAL_NFS_H */