diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-07-31 14:29:07 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-08-04 08:54:05 -0400 |
| commit | 988664a0f6bbfc356e6ce55f7a87b8594050012f (patch) | |
| tree | c6c6450c8559c13ca9d53c8959ffa4276f3eddf1 | |
| parent | 5d8d9a4d9ff74c55901642b4e2ac5124830ddafe (diff) | |
SUNRPC: Store the hashtable size in struct rpc_cred_cache
Cleanup in preparation for allowing the user to determine the maximum hash
table size.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | include/linux/sunrpc/auth.h | 1 | ||||
| -rw-r--r-- | net/sunrpc/auth.c | 10 |
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h index 784e78c73ec..84d64b6926a 100644 --- a/include/linux/sunrpc/auth.h +++ b/include/linux/sunrpc/auth.h @@ -65,6 +65,7 @@ struct rpc_cred { #define RPC_CREDCACHE_NR (1 << RPC_CREDCACHE_HASHBITS) struct rpc_cred_cache { struct hlist_head hashtable[RPC_CREDCACHE_NR]; + unsigned int hashbits; spinlock_t lock; }; diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index db135543d21..eef76a1f1dd 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -145,12 +145,15 @@ int rpcauth_init_credcache(struct rpc_auth *auth) { struct rpc_cred_cache *new; + unsigned int hashsize; int i; new = kmalloc(sizeof(*new), GFP_KERNEL); if (!new) return -ENOMEM; - for (i = 0; i < RPC_CREDCACHE_NR; i++) + new->hashbits = RPC_CREDCACHE_HASHBITS; + hashsize = 1U << new->hashbits; + for (i = 0; i < hashsize; i++) INIT_HLIST_HEAD(&new->hashtable[i]); spin_lock_init(&new->lock); auth->au_credcache = new; @@ -183,11 +186,12 @@ rpcauth_clear_credcache(struct rpc_cred_cache *cache) LIST_HEAD(free); struct hlist_head *head; struct rpc_cred *cred; + unsigned int hashsize = 1U << cache->hashbits; int i; spin_lock(&rpc_credcache_lock); spin_lock(&cache->lock); - for (i = 0; i < RPC_CREDCACHE_NR; i++) { + for (i = 0; i < hashsize; i++) { head = &cache->hashtable[i]; while (!hlist_empty(head)) { cred = hlist_entry(head->first, struct rpc_cred, cr_hash); @@ -297,7 +301,7 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred, *entry, *new; unsigned int nr; - nr = hash_long(acred->uid, RPC_CREDCACHE_HASHBITS); + nr = hash_long(acred->uid, cache->hashbits); rcu_read_lock(); hlist_for_each_entry_rcu(entry, pos, &cache->hashtable[nr], cr_hash) { |