diff mbox series

[V14,4/4] LoongArch: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP

Message ID 20221027125253.3458989-5-chenhuacai@loongson.cn (mailing list archive)
State Handled Elsewhere
Headers show
Series mm/sparse-vmemmap: Generalise helpers and enable for LoongArch | expand

Commit Message

Huacai Chen Oct. 27, 2022, 12:52 p.m. UTC 
From: Feiyang Chen <chenfeiyang@loongson.cn>

The feature of minimizing overhead of struct page associated with each
HugeTLB page is implemented on x86_64. However, the infrastructure of
this feature is already there, so just select ARCH_WANT_HUGETLB_PAGE_
OPTIMIZE_VMEMMAP is enough to enable this feature for LoongArch.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Feiyang Chen <chenfeiyang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---
 arch/loongarch/Kconfig     | 1 +
 1 files changed, 1 insertions(+)

Comments

Muchun Song Nov. 3, 2022, 2:49 a.m. UTC | #1 
> On Oct 27, 2022, at 20:52, Huacai Chen <chenhuacai@loongson.cn> wrote:
> 
> From: Feiyang Chen <chenfeiyang@loongson.cn>
> 
> The feature of minimizing overhead of struct page associated with each
> HugeTLB page is implemented on x86_64. However, the infrastructure of

I'd like to refer to this feature as HVO (more simplified).

> this feature is already there, so just select ARCH_WANT_HUGETLB_PAGE_
> OPTIMIZE_VMEMMAP is enough to enable this feature for LoongArch.
> 
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Feiyang Chen <chenfeiyang@loongson.cn>
> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

Acked-by: Muchun Song <songmuchun@bytedance.com>

Thanks.
diff mbox series

Patch

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 6f7fa0c0ca08..0a6ef613124c 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -52,6 +52,7 @@  config LOONGARCH
 	select ARCH_USE_QUEUED_RWLOCKS
 	select ARCH_USE_QUEUED_SPINLOCKS
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
+	select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
 	select ARCH_WANT_LD_ORPHAN_WARN
 	select ARCH_WANTS_NO_INSTR
 	select BUILDTIME_TABLE_SORT