1. 根目录:
2. net
3. sunrpc
4. netns.h

#ifndef __SUNRPC_NETNS_H__
#define __SUNRPC_NETNS_H__

#include <net/net_namespace.h>
#include <net/netns/generic.h>

struct cache_detail;

struct sunrpc_net {
	struct proc_dir_entry *proc_net_rpc;
	struct cache_detail *ip_map_cache;
	struct cache_detail *unix_gid_cache;
	struct cache_detail *rsc_cache;
	struct cache_detail *rsi_cache;

	struct super_block *pipefs_sb;
	struct rpc_pipe *gssd_dummy;
	struct mutex pipefs_sb_lock;

	struct list_head all_clients;
	spinlock_t rpc_client_lock;

	struct rpc_clnt *rpcb_local_clnt;
	struct rpc_clnt *rpcb_local_clnt4;
	spinlock_t rpcb_clnt_lock;
	unsigned int rpcb_users;
	unsigned int rpcb_is_af_local : 1;

	struct mutex gssp_lock;
	struct rpc_clnt *gssp_clnt;
	int use_gss_proxy;
	int pipe_version;
	atomic_t pipe_users;
	struct proc_dir_entry *use_gssp_proc;
};

extern int sunrpc_net_id;

int ip_map_cache_create(struct net *);
void ip_map_cache_destroy(struct net *);

#endif