[PATCH v3 3/5] x86: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Hoan Tran
2020-03-28T18:31:58Z

Remove CONFIG_NODES_SPAN_OTHER_NODES as it's enabled
by default. It is now enabled for x86(32 bit) configurations
and do not depend on X64_64_ACPI_NUMA config.
Because of that, on NUMA enabled system, early_pfn_in_nid()
function is called by memmap_init_zone() during boot-time.
It doesn't affect the performance at run-time.

Signed-off-by: Hoan Tran <Hoan@os.amperecomputing.com>
---
arch/x86/Kconfig | 9 ---------
1 file changed, 9 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5e89499..a938738 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1581,15 +1581,6 @@ config X86_64_ACPI_NUMA
---help---
Enable ACPI SRAT based node topology detection.

-# 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. See memmap_init_zone()
-# for details.
-config NODES_SPAN_OTHER_NODES
- def_bool y
- depends on X86_64_ACPI_NUMA
-
config NUMA_EMU
bool "NUMA emulation"
depends on NUMA
--
1.8.3.1