SUNRPC discard cr_uid from struct rpc_cred.

Just use ->cr_cred->fsuid directly.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

include/linux/sunrpc/auth.h

@@ -58,8 +58,6 @@ struct rpc_cred {
 	refcount_t		cr_count;	/* ref count */
 	const struct cred	*cr_cred;
 
-	kuid_t			cr_uid;
-
 	/* per-flavor data */
 };
 #define RPCAUTH_CRED_NEW	0

net/sunrpc/auth.c

@@ -655,7 +655,6 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
 	cred->cr_ops = ops;
 	cred->cr_expire = jiffies;
 	cred->cr_cred = get_cred(acred->cred);
-	cred->cr_uid = acred->cred->fsuid;
 }
 EXPORT_SYMBOL_GPL(rpcauth_init_cred);
 

net/sunrpc/auth_gss/auth_gss.c

@@ -565,7 +565,7 @@ gss_setup_upcall(struct gss_auth *gss_auth, struct rpc_cred *cred)
 	struct gss_cred *gss_cred = container_of(cred,
 			struct gss_cred, gc_base);
 	struct gss_upcall_msg *gss_new, *gss_msg;
-	kuid_t uid = cred->cr_uid;
+	kuid_t uid = cred->cr_cred->fsuid;
 
 	gss_new = gss_alloc_msg(gss_auth, uid, gss_cred->gc_principal);
 	if (IS_ERR(gss_new))
@@ -604,7 +604,7 @@ gss_refresh_upcall(struct rpc_task *task)
 	int err = 0;
 
 	dprintk("RPC: %5u %s for uid %u\n",
-		task->tk_pid, __func__, from_kuid(&init_user_ns, cred->cr_uid));
+		task->tk_pid, __func__, from_kuid(&init_user_ns, cred->cr_cred->fsuid));
 	gss_msg = gss_setup_upcall(gss_auth, cred);
 	if (PTR_ERR(gss_msg) == -EAGAIN) {
 		/* XXX: warning on the first, under the assumption we
@@ -637,7 +637,7 @@ gss_refresh_upcall(struct rpc_task *task)
 out:
 	dprintk("RPC: %5u %s for uid %u result %d\n",
 		task->tk_pid, __func__,
-		from_kuid(&init_user_ns, cred->cr_uid),	err);
+		from_kuid(&init_user_ns, cred->cr_cred->fsuid),	err);
 	return err;
 }
 
@@ -653,7 +653,7 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
 	int err;
 
 	dprintk("RPC:       %s for uid %u\n",
-		__func__, from_kuid(&init_user_ns, cred->cr_uid));
+		__func__, from_kuid(&init_user_ns, cred->cr_cred->fsuid));
 retry:
 	err = 0;
 	/* if gssd is down, just skip upcalling altogether */
@@ -701,7 +701,7 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
 	gss_release_msg(gss_msg);
 out:
 	dprintk("RPC:       %s for uid %u result %d\n",
-		__func__, from_kuid(&init_user_ns, cred->cr_uid), err);
+		__func__, from_kuid(&init_user_ns, cred->cr_cred->fsuid), err);
 	return err;
 }
 
@@ -1520,7 +1520,7 @@ gss_match(struct auth_cred *acred, struct rpc_cred *rc, int flags)
 	} else {
 		if (gss_cred->gc_principal != NULL)
 			return 0;
-		ret = uid_eq(rc->cr_uid, acred->cred->fsuid);
+		ret = uid_eq(rc->cr_cred->fsuid, acred->cred->fsuid);
 	}
 	return ret;
 }