For the memory hole, sparse memory model that define SPARSEMEM_VMEMMAP do not free the reserved memory for the page map, decrease the section size can reduce the waste of reserved memory.
Signed-off-by: Wei Li <liwei...@huawei.com> Signed-off-by: Baopeng Feng <fengbaope...@hisilicon.com> Signed-off-by: Xia Qing <saberlily....@hisilicon.com> --- arch/arm64/include/asm/sparsemem.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/sparsemem.h b/arch/arm64/include/asm/sparsemem.h index 1f43fcc79738..8963bd3def28 100644 --- a/arch/arm64/include/asm/sparsemem.h +++ b/arch/arm64/include/asm/sparsemem.h @@ -7,7 +7,7 @@ #ifdef CONFIG_SPARSEMEM #define MAX_PHYSMEM_BITS CONFIG_ARM64_PA_BITS -#define SECTION_SIZE_BITS 30 +#define SECTION_SIZE_BITS 27 #endif #endif -- 2.15.0
