22 	unsigned long flags, pfn;  in set_migratetype_isolate()  local
39 	pfn = page_to_pfn(page);  in set_migratetype_isolate()
40 	arg.start_pfn = pfn;  in set_migratetype_isolate()
97 	unsigned long pfn, buddy_pfn;  in unset_migratetype_isolate()  local
116 			pfn = page_to_pfn(page);  in unset_migratetype_isolate()
117 			buddy_pfn = __find_buddy_pfn(pfn, order);  in unset_migratetype_isolate()
118 			buddy = page + (buddy_pfn - pfn);  in unset_migratetype_isolate()
148 __first_valid_page(unsigned long pfn, unsigned long nr_pages)  in __first_valid_page()  argument
155 		if (!pfn_valid_within(pfn + i))  in __first_valid_page()
157 		page = pfn_to_online_page(pfn + i);  in __first_valid_page()
190 	unsigned long pfn;  in start_isolate_page_range()  local
197 	for (pfn = start_pfn;  in start_isolate_page_range()
198 	     pfn < end_pfn;  in start_isolate_page_range()
199 	     pfn += pageblock_nr_pages) {  in start_isolate_page_range()
200 		page = __first_valid_page(pfn, pageblock_nr_pages);  in start_isolate_page_range()
203 			undo_pfn = pfn;  in start_isolate_page_range()
209 	for (pfn = start_pfn;  in start_isolate_page_range()
210 	     pfn < undo_pfn;  in start_isolate_page_range()
211 	     pfn += pageblock_nr_pages) {  in start_isolate_page_range()
212 		struct page *page = pfn_to_online_page(pfn);  in start_isolate_page_range()
227 	unsigned long pfn;  in undo_isolate_page_range()  local
233 	for (pfn = start_pfn;  in undo_isolate_page_range()
234 	     pfn < end_pfn;  in undo_isolate_page_range()
235 	     pfn += pageblock_nr_pages) {  in undo_isolate_page_range()
236 		page = __first_valid_page(pfn, pageblock_nr_pages);  in undo_isolate_page_range()
251 __test_page_isolated_in_pageblock(unsigned long pfn, unsigned long end_pfn,  in __test_page_isolated_in_pageblock()  argument
256 	while (pfn < end_pfn) {  in __test_page_isolated_in_pageblock()
257 		if (!pfn_valid_within(pfn)) {  in __test_page_isolated_in_pageblock()
258 			pfn++;  in __test_page_isolated_in_pageblock()
261 		page = pfn_to_page(pfn);  in __test_page_isolated_in_pageblock()
268 			pfn += 1 << page_order(page);  in __test_page_isolated_in_pageblock()
271 			pfn++;  in __test_page_isolated_in_pageblock()
276 	return pfn;  in __test_page_isolated_in_pageblock()
283 	unsigned long pfn, flags;  in test_pages_isolated()  local
292 	for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages) {  in test_pages_isolated()
293 		page = __first_valid_page(pfn, pageblock_nr_pages);  in test_pages_isolated()
298 	if ((pfn < end_pfn) || !page)  in test_pages_isolated()
303 	pfn = __test_page_isolated_in_pageblock(start_pfn, end_pfn,  in test_pages_isolated()
307 	trace_test_pages_isolated(start_pfn, end_pfn, pfn);  in test_pages_isolated()
309 	return pfn < end_pfn ? -EBUSY : 0;  in test_pages_isolated()