NR_MEM_SECTIONS  1120 include/linux/mmzone.h #define NR_SECTION_ROOTS	DIV_ROUND_UP(NR_MEM_SECTIONS, SECTIONS_PER_ROOT)
NR_MEM_SECTIONS  1184 include/linux/mmzone.h 	if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)
NR_MEM_SECTIONS  1192 include/linux/mmzone.h 	if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)