Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

* git://git.linux-nfs.org/pub/linux/nfs-2.6: (122 commits)
  sunrpc: drop BKL around wrap and unwrap
  NFSv4: Make sure unlock is really an unlock when cancelling a lock
  NLM: fix source address of callback to client
  SUNRPC client: add interface for binding to a local address
  SUNRPC server: record the destination address of a request
  SUNRPC: cleanup transport creation argument passing
  NFSv4: Make the NFS state model work with the nosharedcache mount option
  NFS: Error when mounting the same filesystem with different options
  NFS: Add the mount option "nosharecache"
  NFS: Add support for mounting NFSv4 file systems with string options
  NFS: Add final pieces to support in-kernel mount option parsing
  NFS: Introduce generic mount client API
  NFS: Add enums and match tables for mount option parsing
  NFS: Improve debugging output in NFS in-kernel mount client
  NFS: Clean up in-kernel NFS mount
  NFS: Remake nfsroot_mount as a permanent part of NFS client
  SUNRPC: Add a convenient default for the hostname when calling rpc_create()
  SUNRPC: Rename rpcb_getport to be consistent with new rpcb_getport_sync name
  SUNRPC: Rename rpcb_getport_external routine
  SUNRPC: Allow rpcbind requests to be interrupted by a signal.
  ...

1 files changed, 29 insertions, 19 deletions

diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 534cdc7be58..7a69ca3beba 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -16,6 +16,7 @@
 #include <linux/sunrpc/xdr.h>
 
 #include <asm/atomic.h>
+#include <linux/rcupdate.h>
 
 /* size of the nodename buffer */
 #define UNX_MAXNODENAME	32
@@ -30,22 +31,28 @@ struct auth_cred {
 /*
  * Client user credentials
  */
+struct rpc_auth;
+struct rpc_credops;
 struct rpc_cred {
 	struct hlist_node	cr_hash;	/* hash chain */
-	struct rpc_credops *	cr_ops;
-	unsigned long		cr_expire;	/* when to gc */
-	atomic_t		cr_count;	/* ref count */
-	unsigned short		cr_flags;	/* various flags */
+	struct list_head	cr_lru;		/* lru garbage collection */
+	struct rcu_head		cr_rcu;
+	struct rpc_auth *	cr_auth;
+	const struct rpc_credops *cr_ops;
 #ifdef RPC_DEBUG
 	unsigned long		cr_magic;	/* 0x0f4aa4f0 */
 #endif
+	unsigned long		cr_expire;	/* when to gc */
+	unsigned long		cr_flags;	/* various flags */
+	atomic_t		cr_count;	/* ref count */
 
 	uid_t			cr_uid;
 
 	/* per-flavor data */
 };
-#define RPCAUTH_CRED_NEW	0x0001
-#define RPCAUTH_CRED_UPTODATE	0x0002
+#define RPCAUTH_CRED_NEW	0
+#define RPCAUTH_CRED_UPTODATE	1
+#define RPCAUTH_CRED_HASHED	2
 
 #define RPCAUTH_CRED_MAGIC	0x0f4aa4f0
 
@@ -56,10 +63,10 @@ struct rpc_cred {
 #define RPC_CREDCACHE_MASK	(RPC_CREDCACHE_NR - 1)
 struct rpc_cred_cache {
 	struct hlist_head	hashtable[RPC_CREDCACHE_NR];
-	unsigned long		nextgc;		/* next garbage collection */
-	unsigned long		expire;		/* cache expiry interval */
+	spinlock_t		lock;
 };
 
+struct rpc_authops;
 struct rpc_auth {
 	unsigned int		au_cslack;	/* call cred size estimate */
 				/* guess at number of u32's auth adds before
@@ -69,7 +76,7 @@ struct rpc_auth {
 	unsigned int		au_verfsize;
 
 	unsigned int		au_flags;	/* various flags */
-	struct rpc_authops *	au_ops;		/* operations */
+	const struct rpc_authops *au_ops;		/* operations */
 	rpc_authflavor_t	au_flavor;	/* pseudoflavor (note may
 						 * differ from the flavor in
 						 * au_ops->au_flavor in gss
@@ -115,17 +122,19 @@ struct rpc_credops {
 						void *, __be32 *, void *);
 };
 
-extern struct rpc_authops	authunix_ops;
-extern struct rpc_authops	authnull_ops;
-#ifdef CONFIG_SUNRPC_SECURE
-extern struct rpc_authops	authdes_ops;
-#endif
+extern const struct rpc_authops	authunix_ops;
+extern const struct rpc_authops	authnull_ops;
+
+void __init		rpc_init_authunix(void);
+void __init		rpcauth_init_module(void);
+void __exit		rpcauth_remove_module(void);
 
-int			rpcauth_register(struct rpc_authops *);
-int			rpcauth_unregister(struct rpc_authops *);
+int			rpcauth_register(const struct rpc_authops *);
+int			rpcauth_unregister(const struct rpc_authops *);
 struct rpc_auth *	rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
-void			rpcauth_destroy(struct rpc_auth *);
+void			rpcauth_release(struct rpc_auth *);
 struct rpc_cred *	rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
+void			rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
 struct rpc_cred *	rpcauth_lookupcred(struct rpc_auth *, int);
 struct rpc_cred *	rpcauth_bindcred(struct rpc_task *);
 void			rpcauth_holdcred(struct rpc_task *);
@@ -138,8 +147,9 @@ int			rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
 int			rpcauth_refreshcred(struct rpc_task *);
 void			rpcauth_invalcred(struct rpc_task *);
 int			rpcauth_uptodatecred(struct rpc_task *);
-int			rpcauth_init_credcache(struct rpc_auth *, unsigned long);
-void			rpcauth_free_credcache(struct rpc_auth *);
+int			rpcauth_init_credcache(struct rpc_auth *);
+void			rpcauth_destroy_credcache(struct rpc_auth *);
+void			rpcauth_clear_credcache(struct rpc_cred_cache *);
 
 static inline
 struct rpc_cred *	get_rpccred(struct rpc_cred *cred)