147  * This function creates new shadow/origin pages for the physical pages mapped
148  * into the virtual memory. If those physical pages already had shadow/origin,
156 	struct page *shadow, *origin;  in kmsan_ioremap_page_range()  local
167 		origin = alloc_pages(gfp_mask, 1);  in kmsan_ioremap_page_range()
168 		if (!shadow || !origin) {  in kmsan_ioremap_page_range()
183 			vmalloc_origin(start + off + PAGE_SIZE), prot, &origin,  in kmsan_ioremap_page_range()
192 		origin = NULL;  in kmsan_ioremap_page_range()
200 		 * Something went wrong. Clean up shadow/origin pages allocated  in kmsan_ioremap_page_range()
206 		if (origin)  in kmsan_ioremap_page_range()
207 			__free_pages(origin, 1);  in kmsan_ioremap_page_range()
224 	struct page *shadow, *origin;  in kmsan_iounmap_page_range()  local
237 		origin = kmsan_vmalloc_to_page_or_null((void *)v_origin);  in kmsan_iounmap_page_range()
242 		if (origin)  in kmsan_iounmap_page_range()
243 			__free_pages(origin, 1);  in kmsan_iounmap_page_range()