diff options
Diffstat (limited to 'fs/nfsd/netns.h')
| -rw-r--r-- | fs/nfsd/netns.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 7c686a270d60..46240c4d9184 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -127,6 +127,41 @@ 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. All of these and + * the "rc" fields in nfsdstats are protected by the cache_lock + */ + + /* 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 */ |