Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1

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To: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Subject: Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
From: Ingo Molnar <mingo@xxxxxxxxxx>
Date: Mon, 23 Oct 2017 14:40:14 +0200
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxxxxxx>, Cyrill Gorcunov <gorcunov@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxx>, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20171023122159.wyztmsbgt5k2d4tb@node.shutemov.name>
References: <20170929140821.37654-1-kirill.shutemov@linux.intel.com> <20171003082754.no6ym45oirah53zp@node.shutemov.name> <20171017154241.f4zaxakfl7fcrdz5@node.shutemov.name> <20171020081853.lmnvaiydxhy5c63t@gmail.com> <20171020094152.skx5sh5ramq2a3vu@black.fi.intel.com> <20171020152346.f6tjybt7i5kzbhld@gmail.com> <20171020162349.3kwhdgv7qo45w4lh@node.shutemov.name> <20171023115658.geccs22o2t733np3@gmail.com> <20171023122159.wyztmsbgt5k2d4tb@node.shutemov.name>
User-agent: NeoMutt/20170609 (1.8.3)

* Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote:

> > Making a variable that 'looks' like a constant macro dynamic in a rare Kconfig 
> > scenario is asking for trouble.
> 
> We expect boot-time page mode switching to be enabled in kernel of next
> generation enterprise distros. It shoudn't be that rare.

My point remains even with not-so-rare Kconfig dependency.

Thanks,

	Ingo

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Follow-Ups:
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov

References:
- [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Ingo Molnar
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Ingo Molnar
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Ingo Molnar
- Re: [PATCH 0/6] Boot-time switching between 4- and 5-level paging for 4.15, Part 1
  - From: Kirill A. Shutemov

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