SUNRPC: Remove svc_fill_write_vector()

Clean up: This API is no longer used.

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

Author: chucklever

include/linux/sunrpc/svc.h

@@ -470,8 +470,6 @@ const char *	   svc_proc_name(const struct svc_rqst *rqstp);
 int		   svc_encode_result_payload(struct svc_rqst *rqstp,
 					     unsigned int offset,
 					     unsigned int length);
-unsigned int	   svc_fill_write_vector(struct svc_rqst *rqstp,
-					 const struct xdr_buf *payload);
 char		  *svc_fill_symlink_pathname(struct svc_rqst *rqstp,
 					     struct kvec *first, void *p,
 					     size_t total);

net/sunrpc/svc.c

@@ -1719,46 +1719,6 @@ int svc_encode_result_payload(struct svc_rqst *rqstp, unsigned int offset,
 }
 EXPORT_SYMBOL_GPL(svc_encode_result_payload);
 
-/**
- * svc_fill_write_vector - Construct data argument for VFS write call
- * @rqstp: svc_rqst to operate on
- * @payload: xdr_buf containing only the write data payload
- *
- * Fills in rqstp::rq_vec, and returns the number of elements.
- */
-unsigned int svc_fill_write_vector(struct svc_rqst *rqstp,
-				   const struct xdr_buf *payload)
-{
-	const struct kvec *first = payload->head;
-	struct page **pages = payload->pages;
-	struct kvec *vec = rqstp->rq_vec;
-	size_t total = payload->len;
-	unsigned int i;
-
-	/* Some types of transport can present the write payload
-	 * entirely in rq_arg.pages. In this case, @first is empty.
-	 */
-	i = 0;
-	if (first->iov_len) {
-		vec[i].iov_base = first->iov_base;
-		vec[i].iov_len = min_t(size_t, total, first->iov_len);
-		total -= vec[i].iov_len;
-		++i;
-	}
-
-	while (total) {
-		vec[i].iov_base = page_address(*pages);
-		vec[i].iov_len = min_t(size_t, total, PAGE_SIZE);
-		total -= vec[i].iov_len;
-		++i;
-		++pages;
-	}
-
-	WARN_ON_ONCE(i > ARRAY_SIZE(rqstp->rq_vec));
-	return i;
-}
-EXPORT_SYMBOL_GPL(svc_fill_write_vector);
-
 /**
  * svc_fill_symlink_pathname - Construct pathname argument for VFS symlink call
  * @rqstp: svc_rqst to operate on