pgt_buf_start 74 arch/x86/mm/init.c static unsigned long __initdata pgt_buf_start; pgt_buf_start 158 arch/x86/mm/init.c pgt_buf_start = base >> PAGE_SHIFT; pgt_buf_start 159 arch/x86/mm/init.c pgt_buf_end = pgt_buf_start; pgt_buf_start 160 arch/x86/mm/init.c pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT);