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 SESSION_HASH_SIZE 512
35 struct nfsd4_client_tracking_ops;
38 struct cld_net *cld_net;
40 struct cache_detail *svc_expkey_cache;
41 struct cache_detail *svc_export_cache;
43 struct cache_detail *idtoname_cache;
44 struct cache_detail *nametoid_cache;
46 struct lock_manager nfsd4_manager;
51 * reclaim_str_hashtbl[] holds known client info from previous reset/reboot
52 * used in reboot/reset lease grace period processing
54 * conf_id_hashtbl[], and conf_name_tree hold confirmed
55 * setclientid_confirmed info.
57 * unconf_str_hastbl[] and unconf_name_tree hold unconfirmed
60 struct list_head *reclaim_str_hashtbl;
61 int reclaim_str_hashtbl_size;
62 struct list_head *conf_id_hashtbl;
63 struct rb_root conf_name_tree;
64 struct list_head *unconf_id_hashtbl;
65 struct rb_root unconf_name_tree;
66 struct list_head *ownerstr_hashtbl;
67 struct list_head *sessionid_hashtbl;
69 * client_lru holds client queue ordered by nfs4_client.cl_time
72 * close_lru holds (open) stateowner queue ordered by nfs4_stateowner.so_time
73 * for last close replay.
75 * All of the above fields are protected by the client_mutex.
77 struct list_head client_lru;
78 struct list_head close_lru;
79 struct list_head del_recall_lru;
81 struct delayed_work laundromat_work;
83 /* client_lock protects the client lru list and session hash table */
84 spinlock_t client_lock;
86 struct file *rec_file;
88 struct nfsd4_client_tracking_ops *client_tracking_ops;
97 * Time of server startup
99 struct timeval nfssvc_boot;
102 * Max number of connections this nfsd container will allow. Defaults
103 * to '0' which is means that it bases this on the number of threads.
105 unsigned int max_connections;
107 struct svc_serv *nfsd_serv;
110 /* Simple check to find out if a given net was properly initialized */
111 #define nfsd_netns_ready(nn) ((nn)->sessionid_hashtbl)
113 extern int nfsd_net_id;
114 #endif /* __NFSD_NETNS_H__ */