167 static void *buffer;  variable
1449 			zeros_only = safe_copy_page(buffer, s_page);  in copy_data_page()
1451 			copy_page(dst, buffer);  in copy_data_page()
1586 	buffer = NULL;  in swsusp_free()
1990 	buffer = get_image_page(GFP_ATOMIC, safe_needed);  in get_highmem_buffer()
1991 	return buffer ? 0 : -ENOMEM;  in get_highmem_buffer()
2198 	if (!buffer) {  in snapshot_read_next()
2200 		buffer = get_image_page(GFP_ATOMIC, PG_ANY);  in snapshot_read_next()
2201 		if (!buffer)  in snapshot_read_next()
2207 		error = init_header((struct swsusp_info *)buffer);  in snapshot_read_next()
2210 		handle->buffer = buffer;  in snapshot_read_next()
2214 		clear_page(buffer);  in snapshot_read_next()
2215 		pack_pfns(buffer, &orig_bm, &zero_bm);  in snapshot_read_next()
2229 			copy_page(buffer, kaddr);  in snapshot_read_next()
2231 			handle->buffer = buffer;  in snapshot_read_next()
2233 			handle->buffer = page_address(page);  in snapshot_read_next()
2474 		return buffer;  in get_highmem_page_buffer()
2490 		kaddr = buffer;  in get_highmem_page_buffer()
2520 		copy_page(dst, buffer);  in copy_last_highmem_page()
2536 	if (buffer)  in free_highmem_data()
2537 		free_image_page(buffer, PG_UNSAFE_CLEAR);  in free_highmem_data()
2586 	free_image_page(buffer, PG_UNSAFE_CLEAR);  in prepare_image()
2587 	buffer = NULL;  in prepare_image()
2738 		if (!buffer)  in snapshot_write_next()
2740 			buffer = get_image_page(GFP_ATOMIC, PG_ANY);  in snapshot_write_next()
2742 		if (!buffer)  in snapshot_write_next()
2745 		handle->buffer = buffer;  in snapshot_write_next()
2747 		error = load_header(buffer);  in snapshot_write_next()
2765 		error = unpack_orig_pfns(buffer, &copy_bm, &zero_bm);  in snapshot_write_next()
2778 			handle->buffer = get_buffer(&orig_bm, &ca);  in snapshot_write_next()
2779 			if (IS_ERR(handle->buffer))  in snapshot_write_next()
2780 				return PTR_ERR(handle->buffer);  in snapshot_write_next()
2784 		hibernate_restore_protect_page(handle->buffer);  in snapshot_write_next()
2785 		handle->buffer = get_buffer(&orig_bm, &ca);  in snapshot_write_next()
2786 		if (IS_ERR(handle->buffer))  in snapshot_write_next()
2787 			return PTR_ERR(handle->buffer);  in snapshot_write_next()
2789 	handle->sync_read = (handle->buffer == buffer);  in snapshot_write_next()
2795 		memset(handle->buffer, 0, PAGE_SIZE);  in snapshot_write_next()
2813 	hibernate_restore_protect_page(handle->buffer);  in snapshot_write_finalize()