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>

1 files changed, 7 insertions, 3 deletions

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index db135543d21e..eef76a1f1dd6 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) {