16  * @nr_frames:	number of pages / pfns from start to map
17  * @vec:	structure which receives pages / pfns of the addresses mapped.
21  * with page frame numbers or page pointers to corresponding pages (choice
23  * belongs to a normal vma, the function grabs reference to each of the pages
28  * The function returns number of pages mapped which may be less than
66  * put_vaddr_frames() - drop references to pages if get_vaddr_frames() acquired
70  * Drop references to pages if get_vaddr_frames() acquired them. We also
76 	struct page **pages;  in put_vaddr_frames()  local
80 	pages = frame_vector_pages(vec);  in put_vaddr_frames()
83 	 * get_vaddr_frames() got pages but vec was later converted to pfns.  in put_vaddr_frames()
86 	if (WARN_ON(IS_ERR(pages)))  in put_vaddr_frames()
89 	unpin_user_pages(pages, vec->nr_frames);  in put_vaddr_frames()
108 	struct page **pages;  in frame_vector_to_pages()  local
116 	pages = (struct page **)nums;  in frame_vector_to_pages()
118 		pages[i] = pfn_to_page(nums[i]);  in frame_vector_to_pages()
134 	struct page **pages;  in frame_vector_to_pfns()  local
138 	pages = (struct page **)(vec->ptrs);  in frame_vector_to_pfns()
139 	nums = (unsigned long *)pages;  in frame_vector_to_pfns()
141 		nums[i] = page_to_pfn(pages[i]);  in frame_vector_to_pfns()