[PATCH] RPC: rename the sockstate field

Clean-up: get rid of a name reference to sockets in the generic parts of the
 RPC client by renaming the sockstate field in the rpc_xprt structure.

 Test-plan:
 Compile kernel with CONFIG_NFS enabled.

 Version: Thu, 11 Aug 2005 16:05:53 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/xprt.h

@@ -163,7 +163,7 @@ struct rpc_xprt {
 	struct list_head	free;		/* free slots */
 	struct rpc_rqst *	slot;		/* slot table storage */
 	unsigned int		max_reqs;	/* total slots */
-	unsigned long		sockstate;	/* Socket state */
+	unsigned long		state;		/* transport state */
 	unsigned char		shutdown   : 1,	/* being shut down */
 				nocong	   : 1,	/* no congestion control */
 				resvport   : 1, /* use a reserved port */
@@ -240,16 +240,54 @@ int			xs_setup_udp(struct rpc_xprt *,
 int			xs_setup_tcp(struct rpc_xprt *,
 					struct rpc_timeout *);
 
-#define XPRT_LOCKED	0
-#define XPRT_CONNECT	1
-#define XPRT_CONNECTING	2
+/*
+ * Reserved bit positions in xprt->state
+ */
+#define XPRT_LOCKED		(0)
+#define XPRT_CONNECTED		(1)
+#define XPRT_CONNECTING		(2)
 
-#define xprt_connected(xp)		(test_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_set_connected(xp)		(set_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_test_and_set_connected(xp)	(test_and_set_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_test_and_clear_connected(xp) \
-					(test_and_clear_bit(XPRT_CONNECT, &(xp)->sockstate))
-#define xprt_clear_connected(xp)	(clear_bit(XPRT_CONNECT, &(xp)->sockstate))
+static inline void xprt_set_connected(struct rpc_xprt *xprt)
+{
+	set_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline void xprt_clear_connected(struct rpc_xprt *xprt)
+{
+	clear_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline int xprt_connected(struct rpc_xprt *xprt)
+{
+	return test_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline int xprt_test_and_set_connected(struct rpc_xprt *xprt)
+{
+	return test_and_set_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline int xprt_test_and_clear_connected(struct rpc_xprt *xprt)
+{
+	return test_and_clear_bit(XPRT_CONNECTED, &xprt->state);
+}
+
+static inline void xprt_clear_connecting(struct rpc_xprt *xprt)
+{
+	smp_mb__before_clear_bit();
+	clear_bit(XPRT_CONNECTING, &xprt->state);
+	smp_mb__after_clear_bit();
+}
+
+static inline int xprt_connecting(struct rpc_xprt *xprt)
+{
+	return test_bit(XPRT_CONNECTING, &xprt->state);
+}
+
+static inline int xprt_test_and_set_connecting(struct rpc_xprt *xprt)
+{
+	return test_and_set_bit(XPRT_CONNECTING, &xprt->state);
+}
 
 #endif /* __KERNEL__*/
 

net/sunrpc/xprt.c

@@ -74,7 +74,7 @@ __xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
 {
 	struct rpc_rqst *req = task->tk_rqstp;
 
-	if (test_and_set_bit(XPRT_LOCKED, &xprt->sockstate)) {
+	if (test_and_set_bit(XPRT_LOCKED, &xprt->state)) {
 		if (task == xprt->snd_task)
 			return 1;
 		goto out_sleep;
@@ -88,7 +88,7 @@ __xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
 		return 1;
 	}
 	smp_mb__before_clear_bit();
-	clear_bit(XPRT_LOCKED, &xprt->sockstate);
+	clear_bit(XPRT_LOCKED, &xprt->state);
 	smp_mb__after_clear_bit();
 out_sleep:
 	dprintk("RPC: %4d failed to lock socket %p\n", task->tk_pid, xprt);
@@ -118,7 +118,7 @@ __xprt_lock_write_next(struct rpc_xprt *xprt)
 {
 	struct rpc_task *task;
 
-	if (test_and_set_bit(XPRT_LOCKED, &xprt->sockstate))
+	if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
 		return;
 	if (!xprt->nocong && RPCXPRT_CONGESTED(xprt))
 		goto out_unlock;
@@ -139,7 +139,7 @@ __xprt_lock_write_next(struct rpc_xprt *xprt)
 	}
 out_unlock:
 	smp_mb__before_clear_bit();
-	clear_bit(XPRT_LOCKED, &xprt->sockstate);
+	clear_bit(XPRT_LOCKED, &xprt->state);
 	smp_mb__after_clear_bit();
 }
 
@@ -152,7 +152,7 @@ __xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *task)
 	if (xprt->snd_task == task) {
 		xprt->snd_task = NULL;
 		smp_mb__before_clear_bit();
-		clear_bit(XPRT_LOCKED, &xprt->sockstate);
+		clear_bit(XPRT_LOCKED, &xprt->state);
 		smp_mb__after_clear_bit();
 		__xprt_lock_write_next(xprt);
 	}
@@ -312,11 +312,11 @@ xprt_init_autodisconnect(unsigned long data)
 	spin_lock(&xprt->transport_lock);
 	if (!list_empty(&xprt->recv) || xprt->shutdown)
 		goto out_abort;
-	if (test_and_set_bit(XPRT_LOCKED, &xprt->sockstate))
+	if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
 		goto out_abort;
 	spin_unlock(&xprt->transport_lock);
 	/* Let keventd close the socket */
-	if (test_bit(XPRT_CONNECTING, &xprt->sockstate) != 0)
+	if (xprt_connecting(xprt))
 		xprt_release_write(xprt, NULL);
 	else
 		schedule_work(&xprt->task_cleanup);

net/sunrpc/xprtsock.c

@@ -925,9 +925,7 @@ out:
 	else
 		rpc_wake_up(&xprt->pending);
 out_clear:
-	smp_mb__before_clear_bit();
-	clear_bit(XPRT_CONNECTING, &xprt->sockstate);
-	smp_mb__after_clear_bit();
+	xprt_clear_connecting(xprt);
 }
 
 /**
@@ -940,7 +938,7 @@ static void xs_connect(struct rpc_task *task)
 {
 	struct rpc_xprt *xprt = task->tk_xprt;
 
-	if (!test_and_set_bit(XPRT_CONNECTING, &xprt->sockstate)) {
+	if (!xprt_test_and_set_connecting(xprt)) {
 		if (xprt->sock != NULL) {
 			dprintk("RPC:      xs_connect delayed xprt %p\n", xprt);
 			schedule_delayed_work(&xprt->sock_connect,