net/9p: remove (now-)unused helpers

 *

 */

#include <linux/slab.h>

#include <linux/mm.h>

#include <linux/module.h>

#include <net/9p/9p.h>

#include <net/9p/client.h>

#include <linux/scatterlist.h>

#include "trans_common.h"

/**

 *  p9_release_req_pages - Release pages after the transaction.

			put_page(pages[i]);

}

EXPORT_SYMBOL(p9_release_pages);

/**

 * p9_nr_pages - Return number of pages needed to accommodate the payload.

 */

int p9_nr_pages(char *data, int len)

{

	unsigned long start_page, end_page;

	start_page =  (unsigned long)data >> PAGE_SHIFT;

	end_page = ((unsigned long)data + len + PAGE_SIZE - 1) >> PAGE_SHIFT;

	return end_page - start_page;

}

EXPORT_SYMBOL(p9_nr_pages);

/**

 * payload_gup - Translates user buffer into kernel pages and

 * pins them either for read/write through get_user_pages_fast().

 * @req: Request to be sent to server.

 * @pdata_off: data offset into the first page after translation (gup).

 * @pdata_len: Total length of the IO. gup may not return requested # of pages.

 * @nr_pages: number of pages to accommodate the payload

 * @rw: Indicates if the pages are for read or write.

 */

int p9_payload_gup(char *data, int *nr_pages, struct page **pages, int write)

{

	int nr_mapped_pages;

	nr_mapped_pages = get_user_pages_fast((unsigned long)data,

					      *nr_pages, write, pages);

	if (nr_mapped_pages <= 0)

		return nr_mapped_pages;

	*nr_pages = nr_mapped_pages;

	return 0;

}

EXPORT_SYMBOL(p9_payload_gup);

 */

void p9_release_pages(struct page **, int);

int p9_payload_gup(char *, int *, struct page **, int);

int p9_nr_pages(char *, int);