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Subject[PATCH] arm64: Kconfig: Enable NODES_SPAN_OTHER_NODES config for NUMA
Date
Some NUMA nodes have memory ranges that span other nodes.
Even though a pfn is valid and between a node's start and end pfns,
it may not reside on that node.

This patch enables NODES_SPAN_OTHER_NODES config for NUMA to support
this type of NUMA layout.

Signed-off-by: Hoan Tran <Hoan@os.amperecomputing.com>
---
arch/arm64/Kconfig | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 697ea05..21fc168 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -873,6 +873,13 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK
config HOLES_IN_ZONE
def_bool y

+# Some NUMA nodes have memory ranges that span other nodes.
+# Even though a pfn is valid and between a node's start and end pfns,
+# it may not reside on that node.
+config NODES_SPAN_OTHER_NODES
+ def_bool y
+ depends on ACPI_NUMA
+
source "kernel/Kconfig.hz"

config ARCH_SUPPORTS_DEBUG_PAGEALLOC
--
2.7.4
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