567 	unsigned long blockpfn = *start_pfn;  in isolate_freepages_block()  local
574 	page = pfn_to_page(blockpfn);  in isolate_freepages_block()
577 	for (; blockpfn < end_pfn; blockpfn += stride, page += stride) {  in isolate_freepages_block()
585 		if (!(blockpfn % COMPACT_CLUSTER_MAX)  in isolate_freepages_block()
602 			    (blockpfn + (1UL << order) <= end_pfn)) {  in isolate_freepages_block()
603 				blockpfn += (1UL << order) - 1;  in isolate_freepages_block()
637 			blockpfn += isolated;  in isolate_freepages_block()
641 		blockpfn += isolated - 1;  in isolate_freepages_block()
657 	if (unlikely(blockpfn > end_pfn))  in isolate_freepages_block()
658 		blockpfn = end_pfn;  in isolate_freepages_block()
660 	trace_mm_compaction_isolate_freepages(*start_pfn, blockpfn,  in isolate_freepages_block()
664 	*start_pfn = blockpfn;  in isolate_freepages_block()
671 	if (strict && blockpfn < end_pfn)  in isolate_freepages_block()