SUNRPC: Rename "call_" functions that are no longer FSM states

The RPC client uses a finite state machine to move RPC tasks through each
step of an RPC request.  Each state is contained in a function in
net/sunrpc/clnt.c, and named call_foo.

Some of the functions named call_foo have changed over the past few years and
are no longer states in the FSM.  These include: call_encode, call_header,
and call_verify.  As a clean up, rename the functions that have changed.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 68ea6dd..ab8038d 100644 (file)
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -58,7 +58,6 @@ static void   call_start(struct rpc_task *task);
 static void    call_reserve(struct rpc_task *task);
 static void    call_reserveresult(struct rpc_task *task);
 static void    call_allocate(struct rpc_task *task);
-static void    call_encode(struct rpc_task *task);
 static void    call_decode(struct rpc_task *task);
 static void    call_bind(struct rpc_task *task);
 static void    call_bind_status(struct rpc_task *task);
@@ -70,9 +69,9 @@ static void   call_refreshresult(struct rpc_task *task);
 static void    call_timeout(struct rpc_task *task);
 static void    call_connect(struct rpc_task *task);
 static void    call_connect_status(struct rpc_task *task);
-static __be32 *        call_header(struct rpc_task *task);
-static __be32 *        call_verify(struct rpc_task *task);
 
+static __be32  *rpc_encode_header(struct rpc_task *task);
+static __be32  *rpc_verify_header(struct rpc_task *task);
 static int     rpc_ping(struct rpc_clnt *clnt, int flags);
 
 static void rpc_register_client(struct rpc_clnt *clnt)
@@ -876,7 +875,7 @@ rpc_xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
  * 3.  Encode arguments of an RPC call
  */
 static void
-call_encode(struct rpc_task *task)
+rpc_xdr_encode(struct rpc_task *task)
 {
        struct rpc_rqst *req = task->tk_rqstp;
        kxdrproc_t      encode;
@@ -891,13 +890,14 @@ call_encode(struct rpc_task *task)
                         (char *)req->rq_buffer + req->rq_callsize,
                         req->rq_rcvsize);
 
-       /* Encode header and provided arguments */
-       encode = task->tk_msg.rpc_proc->p_encode;
-       if (!(p = call_header(task))) {
-               printk(KERN_INFO "RPC: call_header failed, exit EIO\n");
+       p = rpc_encode_header(task);
+       if (p == NULL) {
+               printk(KERN_INFO "RPC: couldn't encode RPC header, exit EIO\n");
                rpc_exit(task, -EIO);
                return;
        }
+
+       encode = task->tk_msg.rpc_proc->p_encode;
        if (encode == NULL)
                return;
 
@@ -1056,7 +1056,7 @@ call_transmit(struct rpc_task *task)
        /* Encode here so that rpcsec_gss can use correct sequence number. */
        if (rpc_task_need_encode(task)) {
                BUG_ON(task->tk_rqstp->rq_bytes_sent != 0);
-               call_encode(task);
+               rpc_xdr_encode(task);
                /* Did the encode result in an error condition? */
                if (task->tk_status != 0) {
                        /* Was the error nonfatal? */
@@ -1240,8 +1240,7 @@ call_decode(struct rpc_task *task)
                goto out_retry;
        }
 
-       /* Verify the RPC header */
-       p = call_verify(task);
+       p = rpc_verify_header(task);
        if (IS_ERR(p)) {
                if (p == ERR_PTR(-EAGAIN))
                        goto out_retry;
@@ -1259,7 +1258,7 @@ call_decode(struct rpc_task *task)
        return;
 out_retry:
        task->tk_status = 0;
-       /* Note: call_verify() may have freed the RPC slot */
+       /* Note: rpc_verify_header() may have freed the RPC slot */
        if (task->tk_rqstp == req) {
                req->rq_received = req->rq_rcv_buf.len = 0;
                if (task->tk_client->cl_discrtry)
@@ -1306,11 +1305,8 @@ call_refreshresult(struct rpc_task *task)
        return;
 }
 
-/*
- * Call header serialization
- */
 static __be32 *
-call_header(struct rpc_task *task)
+rpc_encode_header(struct rpc_task *task)
 {
        struct rpc_clnt *clnt = task->tk_client;
        struct rpc_rqst *req = task->tk_rqstp;
@@ -1330,11 +1326,8 @@ call_header(struct rpc_task *task)
        return p;
 }
 
-/*
- * Reply header verification
- */
 static __be32 *
-call_verify(struct rpc_task *task)
+rpc_verify_header(struct rpc_task *task)
 {
        struct kvec *iov = &task->tk_rqstp->rq_rcv_buf.head[0];
        int len = task->tk_rqstp->rq_rcv_buf.len >> 2;
@@ -1408,7 +1401,7 @@ call_verify(struct rpc_task *task)
                        task->tk_action = call_bind;
                        goto out_retry;
                case RPC_AUTH_TOOWEAK:
-                       printk(KERN_NOTICE "call_verify: server %s requires stronger "
+                       printk(KERN_NOTICE "RPC: server %s requires stronger "
                               "authentication.\n", task->tk_client->cl_server);
                        break;
                default: