diff options
Diffstat (limited to 'fs/nfsd/netns.h')
| -rw-r--r-- | fs/nfsd/netns.h | 59 |
1 files changed, 45 insertions, 14 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 789abc4dd1d2..bdfe5bcb3dcd 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -1,21 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * per net namespace data structures for nfsd * * Copyright (C) 2012, Jeff Layton <jlayton@redhat.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 51 - * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __NFSD_NETNS_H__ @@ -55,6 +42,11 @@ struct nfsd_net { bool grace_ended; time_t boot_time; + /* internal mount of the "nfsd" pseudofilesystem: */ + struct vfsmount *nfsd_mnt; + + struct dentry *nfsd_client_dir; + /* * reclaim_str_hashtbl[] holds known client info from previous reset/reboot * used in reboot/reset lease grace period processing @@ -119,6 +111,7 @@ struct nfsd_net { */ unsigned int max_connections; + u32 clientid_base; u32 clientid_counter; u32 clverifier_counter; @@ -140,6 +133,44 @@ struct nfsd_net { */ bool *nfsd_versions; bool *nfsd4_minorversions; + + /* + * Duplicate reply cache + */ + struct nfsd_drc_bucket *drc_hashtbl; + struct kmem_cache *drc_slab; + + /* max number of entries allowed in the cache */ + unsigned int max_drc_entries; + + /* number of significant bits in the hash value */ + unsigned int maskbits; + unsigned int drc_hashsize; + + /* + * Stats and other tracking of on the duplicate reply cache. + * These fields and the "rc" fields in nfsdstats are modified + * with only the per-bucket cache lock, which isn't really safe + * and should be fixed if we want the statistics to be + * completely accurate. + */ + + /* total number of entries */ + atomic_t num_drc_entries; + + /* cache misses due only to checksum comparison failures */ + unsigned int payload_misses; + + /* amount of memory (in bytes) currently consumed by the DRC */ + unsigned int drc_mem_usage; + + /* longest hash chain seen */ + unsigned int longest_chain; + + /* size of cache when we saw the longest hash chain */ + unsigned int longest_chain_cachesize; + + struct shrinker nfsd_reply_cache_shrinker; }; /* Simple check to find out if a given net was properly initialized */ |