2 * per net namespace data structures for nfsd
4 * Copyright (C) 2012, Jeff Layton <jlayton@redhat.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc., 51
18 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #ifndef __NFSD_NETNS_H__
22 #define __NFSD_NETNS_H__
24 #include <net/net_namespace.h>
25 #include <net/netns/generic.h>
27 /* Hash tables for nfs4_clientid state */
28 #define CLIENT_HASH_BITS 4
29 #define CLIENT_HASH_SIZE (1 << CLIENT_HASH_BITS)
30 #define CLIENT_HASH_MASK (CLIENT_HASH_SIZE - 1)
32 #define LOCKOWNER_INO_HASH_BITS 8
33 #define LOCKOWNER_INO_HASH_SIZE (1 << LOCKOWNER_INO_HASH_BITS)
35 #define SESSION_HASH_SIZE 512
38 struct nfsd4_client_tracking_ops;
41 struct cld_net *cld_net;
43 struct cache_detail *svc_expkey_cache;
44 struct cache_detail *svc_export_cache;
46 struct cache_detail *idtoname_cache;
47 struct cache_detail *nametoid_cache;
49 struct lock_manager nfsd4_manager;
54 * reclaim_str_hashtbl[] holds known client info from previous reset/reboot
55 * used in reboot/reset lease grace period processing
57 * conf_id_hashtbl[], and conf_name_tree hold confirmed
58 * setclientid_confirmed info.
60 * unconf_str_hastbl[] and unconf_name_tree hold unconfirmed
63 struct list_head *reclaim_str_hashtbl;
64 int reclaim_str_hashtbl_size;
65 struct list_head *conf_id_hashtbl;
66 struct rb_root conf_name_tree;
67 struct list_head *unconf_id_hashtbl;
68 struct rb_root unconf_name_tree;
69 struct list_head *ownerstr_hashtbl;
70 struct list_head *lockowner_ino_hashtbl;
71 struct list_head *sessionid_hashtbl;
73 * client_lru holds client queue ordered by nfs4_client.cl_time
76 * close_lru holds (open) stateowner queue ordered by nfs4_stateowner.so_time
77 * for last close replay.
79 * All of the above fields are protected by the client_mutex.
81 struct list_head client_lru;
82 struct list_head close_lru;
83 struct list_head del_recall_lru;
85 struct delayed_work laundromat_work;
87 /* client_lock protects the client lru list and session hash table */
88 spinlock_t client_lock;
90 struct file *rec_file;
92 struct nfsd4_client_tracking_ops *client_tracking_ops;
100 * Time of server startup
102 struct timeval nfssvc_boot;
104 struct svc_serv *nfsd_serv;
107 /* Simple check to find out if a given net was properly initialized */
108 #define nfsd_netns_ready(nn) ((nn)->sessionid_hashtbl)
110 extern int nfsd_net_id;
111 #endif /* __NFSD_NETNS_H__ */