SECTION_MAP_MASK 1272 include/linux/mmzone.h 	map &= SECTION_MAP_MASK;
SECTION_MAP_MASK  319 mm/sparse.c    	BUG_ON(coded_mem_map & ~SECTION_MAP_MASK);
SECTION_MAP_MASK  329 mm/sparse.c    	coded_mem_map &= SECTION_MAP_MASK;
SECTION_MAP_MASK  337 mm/sparse.c    	ms->section_mem_map &= ~SECTION_MAP_MASK;