[PATCH 1/2] x86/Kconfig: make SPARSEMEM default for 32-bit

From: Mike Rapoport
Date: Wed Apr 24 2019 - 09:24:30 EST


Sparsemem has been a default memory model for x86-64 for over a decade
since the commit b263295dbffd ("x86: 64-bit, make sparsemem vmemmap the
only memory model").

Make it the default for 32-bit NUMA systems (if there any left) as well.

Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
---
arch/x86/Kconfig | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 62fc3fd..5662a3e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1609,10 +1609,6 @@ config ARCH_DISCONTIGMEM_ENABLE
def_bool y
depends on NUMA && X86_32

-config ARCH_DISCONTIGMEM_DEFAULT
- def_bool y
- depends on NUMA && X86_32
-
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
@@ -1620,8 +1616,7 @@ config ARCH_SPARSEMEM_ENABLE
select SPARSEMEM_VMEMMAP_ENABLE if X86_64

config ARCH_SPARSEMEM_DEFAULT
- def_bool y
- depends on X86_64
+ def_bool X86_64 || (NUMA && X86_32)

config ARCH_SELECT_MEMORY_MODEL
def_bool y
--
2.7.4