SUNRPC: Update gssx_accept_sec_context() to use xdr_set_scratch_folio()

This was the last caller of xdr_set_scratch_page(), so I remove this
function while I'm at it.

Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>

Author: Anna Schumaker

include/linux/sunrpc/xdr.h

@@ -287,19 +287,6 @@ xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen)
 	xdr->scratch.iov_len = buflen;
 }
 
-/**
- * xdr_set_scratch_page - Attach a scratch buffer for decoding data
- * @xdr: pointer to xdr_stream struct
- * @page: an anonymous page
- *
- * See xdr_set_scratch_buffer().
- */
-static inline void
-xdr_set_scratch_page(struct xdr_stream *xdr, struct page *page)
-{
-	xdr_set_scratch_buffer(xdr, page_address(page), PAGE_SIZE);
-}
-
 /**
  * xdr_set_scratch_folio - Attach a scratch buffer for decoding data
  * @xdr: pointer to xdr_stream struct

net/sunrpc/auth_gss/gss_rpc_xdr.c

@@ -794,12 +794,12 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
 	struct gssx_res_accept_sec_context *res = data;
 	u32 value_follows;
 	int err;
-	struct page *scratch;
+	struct folio *scratch;
 
-	scratch = alloc_page(GFP_KERNEL);
+	scratch = folio_alloc(GFP_KERNEL, 0);
 	if (!scratch)
 		return -ENOMEM;
-	xdr_set_scratch_page(xdr, scratch);
+	xdr_set_scratch_folio(xdr, scratch);
 
 	/* res->status */
 	err = gssx_dec_status(xdr, &res->status);
@@ -844,6 +844,6 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
 	err = gssx_dec_option_array(xdr, &res->options);
 
 out_free:
-	__free_page(scratch);
+	folio_put(scratch);
 	return err;
 }