18 static int set_migratetype_isolate(struct page *page, int migratetype, int isol_flags)  in set_migratetype_isolate()  argument
26 	zone = page_zone(page);  in set_migratetype_isolate()
35 	if (is_migrate_isolate_page(page))  in set_migratetype_isolate()
38 	pfn = page_to_pfn(page);  in set_migratetype_isolate()
62 	if (!has_unmovable_pages(zone, page, arg.pages_found, migratetype,  in set_migratetype_isolate()
74 		int mt = get_pageblock_migratetype(page);  in set_migratetype_isolate()
76 		set_pageblock_migratetype(page, MIGRATE_ISOLATE);  in set_migratetype_isolate()
78 		nr_pages = move_freepages_block(zone, page, MIGRATE_ISOLATE,  in set_migratetype_isolate()
90 static void unset_migratetype_isolate(struct page *page, unsigned migratetype)  in unset_migratetype_isolate()  argument
97 	struct page *buddy;  in unset_migratetype_isolate()
99 	zone = page_zone(page);  in unset_migratetype_isolate()
101 	if (!is_migrate_isolate_page(page))  in unset_migratetype_isolate()
112 	if (PageBuddy(page)) {  in unset_migratetype_isolate()
113 		order = page_order(page);  in unset_migratetype_isolate()
115 			pfn = page_to_pfn(page);  in unset_migratetype_isolate()
117 			buddy = page + (buddy_pfn - pfn);  in unset_migratetype_isolate()
121 				__isolate_free_page(page, order);  in unset_migratetype_isolate()
133 		nr_pages = move_freepages_block(zone, page, migratetype, NULL);  in unset_migratetype_isolate()
136 	set_pageblock_migratetype(page, migratetype);  in unset_migratetype_isolate()
141 		post_alloc_hook(page, order, __GFP_MOVABLE);  in unset_migratetype_isolate()
142 		__free_pages(page, order);  in unset_migratetype_isolate()
146 static inline struct page *
152 		struct page *page;  in __first_valid_page()  local
154 		page = pfn_to_online_page(pfn + i);  in __first_valid_page()
155 		if (!page)  in __first_valid_page()
157 		return page;  in __first_valid_page()
198 	struct page *page;  in start_isolate_page_range()  local
207 		page = __first_valid_page(pfn, pageblock_nr_pages);  in start_isolate_page_range()
208 		if (page) {  in start_isolate_page_range()
209 			if (set_migratetype_isolate(page, migratetype, flags)) {  in start_isolate_page_range()
221 		struct page *page = pfn_to_online_page(pfn);  in start_isolate_page_range()  local
222 		if (!page)  in start_isolate_page_range()
224 		unset_migratetype_isolate(page, migratetype);  in start_isolate_page_range()
237 	struct page *page;  in undo_isolate_page_range()  local
245 		page = __first_valid_page(pfn, pageblock_nr_pages);  in undo_isolate_page_range()
246 		if (!page || !is_migrate_isolate_page(page))  in undo_isolate_page_range()
248 		unset_migratetype_isolate(page, migratetype);  in undo_isolate_page_range()
262 	struct page *page;  in __test_page_isolated_in_pageblock()  local
269 		page = pfn_to_page(pfn);  in __test_page_isolated_in_pageblock()
270 		if (PageBuddy(page))  in __test_page_isolated_in_pageblock()
276 			pfn += 1 << page_order(page);  in __test_page_isolated_in_pageblock()
277 		else if (skip_hwpoisoned_pages && PageHWPoison(page))  in __test_page_isolated_in_pageblock()
292 	struct page *page;  in test_pages_isolated()  local
301 		page = __first_valid_page(pfn, pageblock_nr_pages);  in test_pages_isolated()
302 		if (page && !is_migrate_isolate_page(page))  in test_pages_isolated()
305 	page = __first_valid_page(start_pfn, end_pfn - start_pfn);  in test_pages_isolated()
306 	if ((pfn < end_pfn) || !page)  in test_pages_isolated()
309 	zone = page_zone(page);  in test_pages_isolated()
320 struct page *alloc_migrate_target(struct page *page, unsigned long private)  in alloc_migrate_target()  argument
322 	return new_page_nodemask(page, numa_node_id(), &node_states[N_MEMORY]);  in alloc_migrate_target()