compact_init_free_pfn 539 include/linux/mmzone.h unsigned long compact_init_free_pfn; compact_init_free_pfn 356 mm/compaction.c zone->compact_init_free_pfn = reset_free; compact_init_free_pfn 1294 mm/compaction.c if (cc->free_pfn >= cc->zone->compact_init_free_pfn) {