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Date: Thu, 20 Dec 2018 00:50:12 +0200
From: Igor Stoppa <>
To: Martin Schwidefsky <>,
 Andy Lutomirski <>
Cc: linux-arch <>,
 linux-s390 <>,
 Heiko Carstens <>,
 Benjamin Herrenschmidt <>,
 Kees Cook <>, Matthew Wilcox <>,
 Igor Stoppa <>, Nadav Amit <>,
 Peter Zijlstra <>,
 Dave Hansen <>,
 linux-integrity <>,
 Kernel Hardening <>,
 Linux-MM <>, LKML <>
Subject: Re: [PATCH 2/6] __wr_after_init: write rare for static allocation

On 12/12/2018 11:49, Martin Schwidefsky wrote:
> On Wed, 5 Dec 2018 15:13:56 -0800
> Andy Lutomirski <> wrote:

>> Hi s390 and powerpc people: it would be nice if this generic
>> implementation *worked* on your architectures and that it will allow
>> you to add some straightforward way to add a better arch-specific
>> implementation if you think that would be better.
> As the code is right now I can guarantee that it will not work on s390.

OK, I have thrown the towel wrt developing at the same time for multiple 

ATM I'm oriented toward getting support for one (x86_64), leaving the 
actual mechanism as architecture specific.

Then I can add another one or two and see what makes sense to refactor.
This approach should minimize the churning, overall.


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