[PATCH 33/35] autonuma: add CONFIG_AUTONUMA and CONFIG_AUTONUMA_DEFAULT_ENABLED

Andrea Arcangeli
2012-05-25T17:03:31Z

Add the config options to allow building the kernel with AutoNUMA.

If CONFIG_AUTONUMA_DEFAULT_ENABLED is "=y", then
/sys/kernel/mm/autonuma/enabled will be equal to 1, and AutoNUMA will
be enabled automatically at boot.

CONFIG_AUTONUMA currently depends on X86, because no other arch
implements the pte/pmd_numa yet and selecting =y would result in a
failed build, but this shall be relaxed in the future. Porting
AutoNUMA to other archs should be pretty simple.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
mm/Kconfig | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index e338407..cbfdb15 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -207,6 +207,19 @@ config MIGRATION
pages as migration can relocate pages to satisfy a huge page
allocation instead of reclaiming.

+config AUTONUMA
+ bool "Auto NUMA"
+ select MIGRATION
+ depends on NUMA && X86
+ help
+ Automatic NUMA CPU scheduling and memory migration.
+
+config AUTONUMA_DEFAULT_ENABLED
+ bool "Auto NUMA default enabled"
+ depends on AUTONUMA
+ help
+ Automatic NUMA CPU scheduling and memory migration enabled at boot.
+
config PHYS_ADDR_T_64BIT
def_bool 64BIT || ARCH_PHYS_ADDR_T_64BIT