[PATCH 25/31] sched, mm, x86: Add the ARCH_SUPPORTS_NUMA_BALANCING flag

[Ingo Molnar]

Allow architectures to opt-in to the adaptive affinity NUMA balancing code.

Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 init/Kconfig | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/init/Kconfig b/init/Kconfig
index ae412fd..78807b3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -703,6 +703,13 @@ config HAVE_UNSTABLE_SCHED_CLOCK
 config ARCH_WANT_NUMA_VARIABLE_LOCALITY
 	bool
 
+#
+# For architectures that want to enable the PROT_NONE driven,
+# NUMA-affine scheduler balancing logic:
+#
+config ARCH_SUPPORTS_NUMA_BALANCING
+	bool
+
 menuconfig CGROUPS
 	boolean "Control Group support"
 	depends on EVENTFD
-- 
1.7.11.7

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