Re: [PATCH v6 2/9] mm: x86: add CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2022-01-04 21:24:53
Also in:
linux-doc, linux-mm, lkml
On Tue, Jan 4, 2022 at 12:23 PM Yu Zhao [off-list ref] wrote:
quoted hunk ↗ jump to hunk
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5c2ccb85f2ef..5a4843242f09 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig@@ -85,6 +85,7 @@ config X86 + select ARCH_HAS_NONLEAF_PMD_YOUNG if X86_64
Why is this limited to 64-bit?
I'm ok with that - maybe it's a simple case of "this is not worth
doing on 32-bit", but I'd like the explanation to be written out.
Right now the commit message literally points the architecture manual
that sio relevant for both 32-bit and 64-bit - and then the patch
itself makes it 64-bit only.
Linus
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