2316 static bool khugepaged_prealloc_page(struct page **hpage, bool *wait)  in khugepaged_prealloc_page()  argument
2318 	if (IS_ERR(*hpage)) {  in khugepaged_prealloc_page()
2323 		*hpage = NULL;  in khugepaged_prealloc_page()
2325 	} else if (*hpage) {  in khugepaged_prealloc_page()
2326 		put_page(*hpage);  in khugepaged_prealloc_page()
2327 		*hpage = NULL;  in khugepaged_prealloc_page()
2334 khugepaged_alloc_page(struct page **hpage, gfp_t gfp, struct mm_struct *mm,  in khugepaged_alloc_page()  argument
2338 	VM_BUG_ON_PAGE(*hpage, *hpage);  in khugepaged_alloc_page()
2348 	*hpage = alloc_pages_exact_node(node, gfp, HPAGE_PMD_ORDER);  in khugepaged_alloc_page()
2349 	if (unlikely(!*hpage)) {  in khugepaged_alloc_page()
2351 		*hpage = ERR_PTR(-ENOMEM);  in khugepaged_alloc_page()
2356 	return *hpage;  in khugepaged_alloc_page()
2372 	struct page *hpage;  in khugepaged_alloc_hugepage()  local
2375 		hpage = alloc_hugepage(khugepaged_defrag());  in khugepaged_alloc_hugepage()
2376 		if (!hpage) {  in khugepaged_alloc_hugepage()
2385 	} while (unlikely(!hpage) && likely(khugepaged_enabled()));  in khugepaged_alloc_hugepage()
2387 	return hpage;  in khugepaged_alloc_hugepage()
2390 static bool khugepaged_prealloc_page(struct page **hpage, bool *wait)  in khugepaged_prealloc_page()  argument
2392 	if (!*hpage)  in khugepaged_prealloc_page()
2393 		*hpage = khugepaged_alloc_hugepage(wait);  in khugepaged_prealloc_page()
2395 	if (unlikely(!*hpage))  in khugepaged_prealloc_page()
2402 khugepaged_alloc_page(struct page **hpage, gfp_t gfp, struct mm_struct *mm,  in khugepaged_alloc_page()  argument
2407 	VM_BUG_ON(!*hpage);  in khugepaged_alloc_page()
2409 	return  *hpage;  in khugepaged_alloc_page()
2428 				   struct page **hpage,  in collapse_huge_page()  argument
2451 	new_page = khugepaged_alloc_page(hpage, gfp, mm, vma, address, node);  in collapse_huge_page()
2550 	*hpage = NULL;  in collapse_huge_page()
2565 			       struct page **hpage)  in khugepaged_scan_pmd()  argument
2632 		collapse_huge_page(mm, address, hpage, vma, node);  in khugepaged_scan_pmd()
2662 					    struct page **hpage)  in khugepaged_scan_mm_slot()  argument
2726 						  hpage);  in khugepaged_scan_mm_slot()
2783 	struct page *hpage = NULL;  in khugepaged_do_scan()  local
2791 		if (!khugepaged_prealloc_page(&hpage, &wait))  in khugepaged_do_scan()
2805 							    &hpage);  in khugepaged_do_scan()
2811 	if (!IS_ERR_OR_NULL(hpage))  in khugepaged_do_scan()
2812 		put_page(hpage);  in khugepaged_do_scan()