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Date: Mon, 6 Mar 2017 22:09:11 +0300
From: "Kirill A. Shutemov" <kirill@shutemov.name>
Subject: Re: [PATCHv4 00/33] 5-level paging
Message-ID: <20170306190911.GB27719@node.shutemov.name>
References: <20170306135357.3124-1-kirill.shutemov@linux.intel.com>
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To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Andrew Morton <akpm@linux-foundation.org>, the arch/x86 maintainers <x86@kernel.org>, Ingo Molnar <mingo@redhat.com>, Arnd Bergmann <arnd@arndb.de>, "H. Peter Anvin" <hpa@zytor.com>, Andi Kleen <ak@linux.intel.com>, Dave Hansen <dave.hansen@intel.com>, Andy Lutomirski <luto@amacapital.net>, "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>, linux-mm <linux-mm@kvack.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>

On Mon, Mar 06, 2017 at 11:03:56AM -0800, Linus Torvalds wrote:
> On Mon, Mar 6, 2017 at 10:42 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
> >
> > We probably need to split it apart:
> >
> >    - Apply the mm core only parts to a branch which can be pulled into
> >      Andrews mm-tree
> >
> >    - Base the x86 changes on top of it
> 
> I'll happily take some of the preparatory patches for 4.11 too. Some
> of them just don't seem to have any downside. The cpuid stuff, and the
> basic scaffolding we could easily merge early. That includes the dummy
> 5level code, ie "5level-fixup.h" and even some of the mm side that
> doesn't actually change anything and just prepares for the real code.

The first 7 patches are relatively low-risk. It would be nice to have them
in earlier.

I'm commited to address any possible drawbacks quickly if you considering
applying it into v4.11.

-- 
 Kirill A. Shutemov

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