diff options
Diffstat (limited to 'net/9p/trans_common.c')
| -rw-r--r-- | net/9p/trans_common.c | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c index 2ee3879161b1..38aa6345bdfa 100644 --- a/net/9p/trans_common.c +++ b/net/9p/trans_common.c @@ -12,12 +12,8 @@ * */ -#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. @@ -31,39 +27,3 @@ void p9_release_pages(struct page **pages, int nr_pages) 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); |