NFS rename client back channel transport field

Differentiate from server backchannel
Signed-off-by: Andy Adamson <andros@netapp.com>
Acked-by: Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/callback.c

@@ -142,7 +142,7 @@ int nfs4_set_callback_sessionid(struct nfs_client *clp)
 	struct svc_serv *serv = clp->cl_rpcclient->cl_xprt->bc_serv;
 	struct nfs4_sessionid *bc_sid;
 
-	if (!serv->bc_xprt)
+	if (!serv->sv_bc_xprt)
 		return -EINVAL;
 
 	/* on success freed in xprt_free */
@@ -152,12 +152,12 @@ int nfs4_set_callback_sessionid(struct nfs_client *clp)
 	memcpy(bc_sid->data, &clp->cl_session->sess_id.data,
 		NFS4_MAX_SESSIONID_LEN);
 	spin_lock_bh(&serv->sv_cb_lock);
-	serv->bc_xprt->xpt_bc_sid = bc_sid;
+	serv->sv_bc_xprt->xpt_bc_sid = bc_sid;
 	spin_unlock_bh(&serv->sv_cb_lock);
-	dprintk("%s set xpt_bc_sid=%u:%u:%u:%u for bc_xprt %p\n", __func__,
+	dprintk("%s set xpt_bc_sid=%u:%u:%u:%u for sv_bc_xprt %p\n", __func__,
 		((u32 *)bc_sid->data)[0], ((u32 *)bc_sid->data)[1],
 		((u32 *)bc_sid->data)[2], ((u32 *)bc_sid->data)[3],
-		serv->bc_xprt);
+		serv->sv_bc_xprt);
 	return 0;
 }
 
@@ -228,8 +228,8 @@ nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
 	init_waitqueue_head(&serv->sv_cb_waitq);
 	rqstp = svc_prepare_thread(serv, &serv->sv_pools[0]);
 	if (IS_ERR(rqstp)) {
-		svc_xprt_put(serv->bc_xprt);
-		serv->bc_xprt = NULL;
+		svc_xprt_put(serv->sv_bc_xprt);
+		serv->sv_bc_xprt = NULL;
 	}
 out:
 	dprintk("--> %s return %ld\n", __func__,

include/linux/sunrpc/bc_xprt.h

@@ -43,7 +43,7 @@ int bc_send(struct rpc_rqst *req);
  */
 static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
 {
-	if (rqstp->rq_server->bc_xprt)
+	if (rqstp->rq_server->sv_bc_xprt)
 		return 1;
 	return 0;
 }
@@ -51,7 +51,7 @@ static inline struct nfs4_sessionid *bc_xprt_sid(struct svc_rqst *rqstp)
 {
 	if (svc_is_backchannel(rqstp))
 		return (struct nfs4_sessionid *)
-					rqstp->rq_server->bc_xprt->xpt_bc_sid;
+			rqstp->rq_server->sv_bc_xprt->xpt_bc_sid;
 	return NULL;
 }
 

include/linux/sunrpc/svc.h

@@ -99,7 +99,7 @@ struct svc_serv {
 	spinlock_t		sv_cb_lock;	/* protects the svc_cb_list */
 	wait_queue_head_t	sv_cb_waitq;	/* sleep here if there are no
 						 * entries in the svc_cb_list */
-	struct svc_xprt		*bc_xprt;
+	struct svc_xprt		*sv_bc_xprt;	/* callback on fore channel */
 #endif /* CONFIG_NFS_V4_1 */
 };
 

net/sunrpc/svc.c

@@ -1262,7 +1262,7 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req,
 	struct kvec	*resv = &rqstp->rq_res.head[0];
 
 	/* Build the svc_rqst used by the common processing routine */
-	rqstp->rq_xprt = serv->bc_xprt;
+	rqstp->rq_xprt = serv->sv_bc_xprt;
 	rqstp->rq_xid = req->rq_xid;
 	rqstp->rq_prot = req->rq_xprt->prot;
 	rqstp->rq_server = serv;

net/sunrpc/svcsock.c

@@ -1595,7 +1595,7 @@ static struct svc_xprt *svc_bc_create_socket(struct svc_serv *serv,
 	xprt = &svsk->sk_xprt;
 	svc_xprt_init(&svc_tcp_bc_class, xprt, serv);
 
-	serv->bc_xprt = xprt;
+	serv->sv_bc_xprt = xprt;
 
 	return xprt;
 }