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.
Signed-off-by: Andrea Arcangeli <aarca...@redhat.com>
---
arch/Kconfig | 3 +++
arch/x86/Kconfig | 1 +
mm/Kconfig | 17 +++++++++++++++++
3 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/Kconfig b/arch/Kconfig
index 72f2fa1..ee3ed89 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -281,4 +281,7 @@ config SECCOMP_FILTER
See Documentation/prctl/seccomp_filter.txt for details.
+config HAVE_ARCH_AUTONUMA
+ bool
+
source "kernel/gcov/Kconfig"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8ec3a1a..4cbdfce 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -97,6 +97,7 @@ config X86
select KTIME_SCALAR if X86_32
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select HAVE_ARCH_AUTONUMA
config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS || UPROBES)
diff --git a/mm/Kconfig b/mm/Kconfig
index d5c8019..f00a0cd 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -211,6 +211,23 @@ config MIGRATION
pages as migration can relocate pages to satisfy a huge page
allocation instead of reclaiming.
+config AUTONUMA
+ bool "AutoNUMA"
+ select MIGRATION
+ depends on NUMA && HAVE_ARCH_AUTONUMA
+ help
+ Automatic NUMA CPU scheduling and memory migration.
+
+ Avoids the administrator to manually setup hard NUMA
+ bindings in order to achieve optimal performance on NUMA
+ hardware.
+
+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
--
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