sunrpc: add hash_cred() function to rpc_authops struct

Currently, a single hash algorithm is used to hash the auth_cred for
the credcache for all rpc_auth types.  Add a hash_cred() function to
the rpc_authops struct to allow a hash function specific to each
auth flavor.

Signed-off-by: Frank Sorenson <sorenson@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 4ccf184e971f3572a1fe5aa105535e17d75e7989..b1bc62ba20a26d56df1d43794023a60e80e1ffef 100644 (file)
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -131,6 +131,7 @@ struct rpc_authops {
        struct rpc_auth *       (*create)(struct rpc_auth_create_args *, struct rpc_clnt *);
        void                    (*destroy)(struct rpc_auth *);
 
+       int                     (*hash_cred)(struct auth_cred *, unsigned int);
        struct rpc_cred *       (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
        struct rpc_cred *       (*crcreate)(struct rpc_auth*, struct auth_cred *, int, gfp_t);
        int                     (*list_pseudoflavors)(rpc_authflavor_t *, int);