3336 static struct page *__page_frag_refill(struct page_frag_cache *nc,  in __page_frag_refill()  argument
3347 	nc->size = page ? PAGE_FRAG_CACHE_MAX_SIZE : PAGE_SIZE;  in __page_frag_refill()
3352 	nc->va = page ? page_address(page) : NULL;  in __page_frag_refill()
3357 void *__alloc_page_frag(struct page_frag_cache *nc,  in __alloc_page_frag()  argument
3364 	if (unlikely(!nc->va)) {  in __alloc_page_frag()
3366 		page = __page_frag_refill(nc, gfp_mask);  in __alloc_page_frag()
3372 		size = nc->size;  in __alloc_page_frag()
3380 		nc->pfmemalloc = page_is_pfmemalloc(page);  in __alloc_page_frag()
3381 		nc->pagecnt_bias = size;  in __alloc_page_frag()
3382 		nc->offset = size;  in __alloc_page_frag()
3385 	offset = nc->offset - fragsz;  in __alloc_page_frag()
3387 		page = virt_to_page(nc->va);  in __alloc_page_frag()
3389 		if (!atomic_sub_and_test(nc->pagecnt_bias, &page->_count))  in __alloc_page_frag()
3394 		size = nc->size;  in __alloc_page_frag()
3400 		nc->pagecnt_bias = size;  in __alloc_page_frag()
3404 	nc->pagecnt_bias--;  in __alloc_page_frag()
3405 	nc->offset = offset;  in __alloc_page_frag()
3407 	return nc->va + offset;  in __alloc_page_frag()