xprtrdma: Remove rpcrdma_create_data_internal::rsize and wsize

Clean up.

xprt_rdma_max_inline_{read,write} cannot be set to large values
by virtue of proc_dointvec_minmax. The current maximum is
RPCRDMA_MAX_INLINE, which is much smaller than RPCRDMA_MAX_SEGS *
PAGE_SIZE.

The .rsize and .wsize fields are otherwise unused in the current
code base, and thus can be removed.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

net/sunrpc/xprtrdma/transport.c

@@ -350,17 +350,8 @@ xprt_setup_rdma(struct xprt_create *args)
 	xprt_rdma_format_addresses(xprt, sap);
 
 	cdata.max_requests = xprt_rdma_slot_table_entries;
-
-	cdata.rsize = RPCRDMA_MAX_SEGS * PAGE_SIZE; /* RDMA write max */
-	cdata.wsize = RPCRDMA_MAX_SEGS * PAGE_SIZE; /* RDMA read max */
-
 	cdata.inline_wsize = xprt_rdma_max_inline_write;
-	if (cdata.inline_wsize > cdata.wsize)
-		cdata.inline_wsize = cdata.wsize;
-
 	cdata.inline_rsize = xprt_rdma_max_inline_read;
-	if (cdata.inline_rsize > cdata.rsize)
-		cdata.inline_rsize = cdata.rsize;
 
 	/*
 	 * Create new transport instance, which includes initialized

net/sunrpc/xprtrdma/xprt_rdma.h

@@ -419,8 +419,6 @@ enum {
  */
 struct rpcrdma_create_data_internal {
 	unsigned int	max_requests;	/* max requests (slots) in flight */
-	unsigned int	rsize;		/* mount rsize - max read hdr+data */
-	unsigned int	wsize;		/* mount wsize - max write hdr+data */
 	unsigned int	inline_rsize;	/* max non-rdma read data payload */
 	unsigned int	inline_wsize;	/* max non-rdma write data payload */
 };