diff mbox series

[3/3] arm64: mm: Re-enable OPTIMIZE_HUGETLB_VMEMMAP

Message ID 20231214073912.1938330-4-sunnanyong@huawei.com
State New
Headers
Series A Solution to Re-enable hugetlb vmemmap optimize on Arm |

Commit Message

Nanyong Sun Dec. 14, 2023, 7:39 a.m. UTC 
  Now update of vmemmap page table can follow the rule of
break-before-make safely for arm64 architecture, re-enable
HVO on arm64.

Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

Comments

Muchun Song Dec. 15, 2023, 4:37 a.m. UTC | #1 
> On Dec 14, 2023, at 15:39, Nanyong Sun <sunnanyong@huawei.com> wrote:
> 
> Now update of vmemmap page table can follow the rule of
> break-before-make safely for arm64 architecture, re-enable
> HVO on arm64.
> 
> Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>

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

Thanks.
diff mbox series

Patch

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7b071a00425d..43e3d5576fb2 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -103,6 +103,7 @@  config ARM64
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_WANT_HUGE_PMD_SHARE if ARM64_4K_PAGES || (ARM64_16K_PAGES && !ARM64_VA_BITS_36)
+	select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
 	select ARCH_WANT_LD_ORPHAN_WARN
 	select ARCH_WANTS_NO_INSTR
 	select ARCH_WANTS_THP_SWAP if ARM64_4K_PAGES