PB_migrate         91 include/linux/mmzone.h #define NR_MIGRATETYPE_BITS (PB_migrate_end - PB_migrate + 1)
PB_migrate         20 include/linux/pageblock-flags.h 	PB_migrate_end = PB_migrate + PB_migratetype_bits - 1,
PB_migrate        557 mm/page_alloc.c 					PB_migrate, PB_migrate_end);