735 	struct page *hpage = compound_head(p);  in me_huge_page()  local
737 	if (!PageHuge(hpage))  in me_huge_page()
750 	if (!(page_mapping(hpage) || PageAnon(hpage))) {  in me_huge_page()
751 		res = dequeue_hwpoisoned_huge_page(hpage);  in me_huge_page()
952 	struct page *hpage = *hpagep;  in hwpoison_user_mappings()  local
960 	if (!(PageLRU(hpage) || PageHuge(p)))  in hwpoison_user_mappings()
967 	if (!page_mapped(hpage))  in hwpoison_user_mappings()
987 	mapping = page_mapping(hpage);  in hwpoison_user_mappings()
988 	if (!(flags & MF_MUST_KILL) && !PageDirty(hpage) && mapping &&  in hwpoison_user_mappings()
990 		if (page_mkclean(hpage)) {  in hwpoison_user_mappings()
991 			SetPageDirty(hpage);  in hwpoison_user_mappings()
1010 		collect_procs(hpage, &tokill, flags & MF_ACTION_REQUIRED);  in hwpoison_user_mappings()
1012 	ret = try_to_unmap(hpage, ttu);  in hwpoison_user_mappings()
1015 				pfn, page_mapcount(hpage));  in hwpoison_user_mappings()
1027 	forcekill = PageDirty(hpage) || (flags & MF_MUST_KILL);  in hwpoison_user_mappings()
1034 static void set_page_hwpoison_huge_page(struct page *hpage)  in set_page_hwpoison_huge_page()  argument
1037 	int nr_pages = 1 << compound_order(hpage);  in set_page_hwpoison_huge_page()
1039 		SetPageHWPoison(hpage + i);  in set_page_hwpoison_huge_page()
1042 static void clear_page_hwpoison_huge_page(struct page *hpage)  in clear_page_hwpoison_huge_page()  argument
1045 	int nr_pages = 1 << compound_order(hpage);  in clear_page_hwpoison_huge_page()
1047 		ClearPageHWPoison(hpage + i);  in clear_page_hwpoison_huge_page()
1072 	struct page *hpage;  in memory_failure()  local
1089 	orig_head = hpage = compound_head(p);  in memory_failure()
1103 		nr_pages = 1 << compound_order(hpage);  in memory_failure()
1126 		} else if (PageHuge(hpage)) {  in memory_failure()
1130 			lock_page(hpage);  in memory_failure()
1131 			if (PageHWPoison(hpage)) {  in memory_failure()
1133 				    || (p != hpage && TestSetPageHWPoison(hpage))) {  in memory_failure()
1135 					unlock_page(hpage);  in memory_failure()
1139 			set_page_hwpoison_huge_page(hpage);  in memory_failure()
1140 			res = dequeue_hwpoisoned_huge_page(hpage);  in memory_failure()
1143 			unlock_page(hpage);  in memory_failure()
1151 	if (!PageHuge(p) && PageTransHuge(hpage)) {  in memory_failure()
1152 		if (!PageAnon(hpage) || unlikely(split_huge_page(hpage))) {  in memory_failure()
1153 			if (!PageAnon(hpage))  in memory_failure()
1163 		hpage = compound_head(p);  in memory_failure()
1192 	lock_page(hpage);  in memory_failure()
1219 		unlock_page(hpage);  in memory_failure()
1220 		put_hwpoison_page(hpage);  in memory_failure()
1226 		unlock_page(hpage);  in memory_failure()
1227 		put_hwpoison_page(hpage);  in memory_failure()
1238 	if (PageHuge(p) && PageTail(p) && TestSetPageHWPoison(hpage)) {  in memory_failure()
1240 		unlock_page(hpage);  in memory_failure()
1241 		put_hwpoison_page(hpage);  in memory_failure()
1251 		set_page_hwpoison_huge_page(hpage);  in memory_failure()
1266 	if (hwpoison_user_mappings(p, pfn, trapno, flags, &hpage)  in memory_failure()
1301 	unlock_page(hpage);  in memory_failure()
1590 	struct page *hpage = compound_head(page);  in soft_offline_huge_page()  local
1597 	lock_page(hpage);  in soft_offline_huge_page()
1598 	if (PageHWPoison(hpage)) {  in soft_offline_huge_page()
1599 		unlock_page(hpage);  in soft_offline_huge_page()
1600 		put_hwpoison_page(hpage);  in soft_offline_huge_page()
1604 	unlock_page(hpage);  in soft_offline_huge_page()
1606 	ret = isolate_huge_page(hpage, &pagelist);  in soft_offline_huge_page()
1611 	put_hwpoison_page(hpage);  in soft_offline_huge_page()
1627 		putback_active_hugepage(hpage);  in soft_offline_huge_page()
1633 			set_page_hwpoison_huge_page(hpage);  in soft_offline_huge_page()
1634 			dequeue_hwpoisoned_huge_page(hpage);  in soft_offline_huge_page()
1635 			num_poisoned_pages_add(1 << compound_order(hpage));  in soft_offline_huge_page()
1745 	struct page *hpage = compound_head(page);  in soft_offline_page()  local
1753 	if (!PageHuge(page) && PageTransHuge(hpage)) {  in soft_offline_page()
1754 		if (PageAnon(hpage) && unlikely(split_huge_page(hpage))) {  in soft_offline_page()
1774 			set_page_hwpoison_huge_page(hpage);  in soft_offline_page()
1775 			if (!dequeue_hwpoisoned_huge_page(hpage))  in soft_offline_page()
1776 				num_poisoned_pages_add(1 << compound_order(hpage));  in soft_offline_page()