2395 static bool khugepaged_prealloc_page(struct page **hpage, bool *wait)  in khugepaged_prealloc_page()  argument
2397 	if (IS_ERR(*hpage)) {  in khugepaged_prealloc_page()
2402 		*hpage = NULL;  in khugepaged_prealloc_page()
2404 	} else if (*hpage) {  in khugepaged_prealloc_page()
2405 		put_page(*hpage);  in khugepaged_prealloc_page()
2406 		*hpage = NULL;  in khugepaged_prealloc_page()
2413 khugepaged_alloc_page(struct page **hpage, gfp_t gfp, struct mm_struct *mm,  in khugepaged_alloc_page()  argument
2416 	VM_BUG_ON_PAGE(*hpage, *hpage);  in khugepaged_alloc_page()
2426 	*hpage = __alloc_pages_node(node, gfp, HPAGE_PMD_ORDER);  in khugepaged_alloc_page()
2427 	if (unlikely(!*hpage)) {  in khugepaged_alloc_page()
2429 		*hpage = ERR_PTR(-ENOMEM);  in khugepaged_alloc_page()
2434 	return *hpage;  in khugepaged_alloc_page()
2450 	struct page *hpage;  in khugepaged_alloc_hugepage()  local
2453 		hpage = alloc_hugepage(khugepaged_defrag());  in khugepaged_alloc_hugepage()
2454 		if (!hpage) {  in khugepaged_alloc_hugepage()
2463 	} while (unlikely(!hpage) && likely(khugepaged_enabled()));  in khugepaged_alloc_hugepage()
2465 	return hpage;  in khugepaged_alloc_hugepage()
2468 static bool khugepaged_prealloc_page(struct page **hpage, bool *wait)  in khugepaged_prealloc_page()  argument
2470 	if (!*hpage)  in khugepaged_prealloc_page()
2471 		*hpage = khugepaged_alloc_hugepage(wait);  in khugepaged_prealloc_page()
2473 	if (unlikely(!*hpage))  in khugepaged_prealloc_page()
2480 khugepaged_alloc_page(struct page **hpage, gfp_t gfp, struct mm_struct *mm,  in khugepaged_alloc_page()  argument
2484 	VM_BUG_ON(!*hpage);  in khugepaged_alloc_page()
2486 	return  *hpage;  in khugepaged_alloc_page()
2505 				   struct page **hpage,  in collapse_huge_page()  argument
2528 	new_page = khugepaged_alloc_page(hpage, gfp, mm, address, node);  in collapse_huge_page()
2627 	*hpage = NULL;  in collapse_huge_page()
2642 			       struct page **hpage)  in khugepaged_scan_pmd()  argument
2711 		collapse_huge_page(mm, address, hpage, vma, node);  in khugepaged_scan_pmd()
2741 					    struct page **hpage)  in khugepaged_scan_mm_slot()  argument
2805 						  hpage);  in khugepaged_scan_mm_slot()
2862 	struct page *hpage = NULL;  in khugepaged_do_scan()  local
2870 		if (!khugepaged_prealloc_page(&hpage, &wait))  in khugepaged_do_scan()
2884 							    &hpage);  in khugepaged_do_scan()
2890 	if (!IS_ERR_OR_NULL(hpage))  in khugepaged_do_scan()
2891 		put_page(hpage);  in khugepaged_do_scan()