CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT 268 kernel/sysctl.c defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT) CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT 1578 kernel/sysctl.c defined(CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT) CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT 323 mm/util.c #ifdef CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT