Messages in this thread Patch in this message | | | From | Wei Li <> | Subject | [PATCH] arm64: mm: decrease the section size to reduce the memory reserved for the page map | Date | Fri, 4 Dec 2020 09:44:43 +0800 |
| |
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 <liwei213@huawei.com> Signed-off-by: Baopeng Feng <fengbaopeng2@hisilicon.com> Signed-off-by: Xia Qing <saberlily.xia@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
| |