16  * @vec:	structure which receives pages / pfns of the addresses mapped.
19  * This function maps virtual addresses from @start and fills @vec structure
35 		     unsigned int gup_flags, struct frame_vector *vec)  in get_vaddr_frames()  argument
45 	if (WARN_ON_ONCE(nr_frames > vec->nr_allocated))  in get_vaddr_frames()
46 		nr_frames = vec->nr_allocated;  in get_vaddr_frames()
72 		vec->got_ref = true;  in get_vaddr_frames()
73 		vec->is_pfns = false;  in get_vaddr_frames()
75 			gup_flags, (struct page **)(vec->ptrs), &locked);  in get_vaddr_frames()
82 	vec->nr_frames = 0;  in get_vaddr_frames()
90 		vec->nr_frames = ret;  in get_vaddr_frames()
98  * @vec:	frame vector to put
104 void put_vaddr_frames(struct frame_vector *vec)  in put_vaddr_frames()  argument
108 	if (!vec->got_ref)  in put_vaddr_frames()
110 	pages = frame_vector_pages(vec);  in put_vaddr_frames()
113 	 * get_vaddr_frames() got pages but vec was later converted to pfns.  in put_vaddr_frames()
119 	unpin_user_pages(pages, vec->nr_frames);  in put_vaddr_frames()
120 	vec->got_ref = false;  in put_vaddr_frames()
122 	vec->nr_frames = 0;  in put_vaddr_frames()
128  * @vec:	frame vector to convert
130  * Convert @vec to contain array of page pointers.  If the conversion is
134 int frame_vector_to_pages(struct frame_vector *vec)  in frame_vector_to_pages()  argument
140 	if (!vec->is_pfns)  in frame_vector_to_pages()
142 	nums = frame_vector_pfns(vec);  in frame_vector_to_pages()
143 	for (i = 0; i < vec->nr_frames; i++)  in frame_vector_to_pages()
147 	for (i = 0; i < vec->nr_frames; i++)  in frame_vector_to_pages()
149 	vec->is_pfns = false;  in frame_vector_to_pages()
156  * @vec:	frame vector to convert
158  * Convert @vec to contain array of pfns.
160 void frame_vector_to_pfns(struct frame_vector *vec)  in frame_vector_to_pfns()  argument
166 	if (vec->is_pfns)  in frame_vector_to_pfns()
168 	pages = (struct page **)(vec->ptrs);  in frame_vector_to_pfns()
170 	for (i = 0; i < vec->nr_frames; i++)  in frame_vector_to_pfns()
172 	vec->is_pfns = true;  in frame_vector_to_pfns()
185 	struct frame_vector *vec;  in frame_vector_create()  local
200 	vec = kvmalloc(size, GFP_KERNEL);  in frame_vector_create()
201 	if (!vec)  in frame_vector_create()
203 	vec->nr_allocated = nr_frames;  in frame_vector_create()
204 	vec->nr_frames = 0;  in frame_vector_create()
205 	return vec;  in frame_vector_create()
211  * @vec:	Frame vector to free
215 void frame_vector_destroy(struct frame_vector *vec)  in frame_vector_destroy()  argument
218 	VM_BUG_ON(vec->nr_frames > 0);  in frame_vector_destroy()
219 	kvfree(vec);  in frame_vector_destroy()