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Date: Fri, 24 Jun 2016 19:41:03 -0700
From: Linus Torvalds <>
To: Andy Lutomirski <>
Cc: Josh Poimboeuf <>, Brian Gerst <>, 
	Peter Zijlstra <>, Oleg Nesterov <>, 
	Andy Lutomirski <>, "the arch/x86 maintainers" <>, 
	Linux Kernel Mailing List <>, 
	"" <>, Borislav Petkov <>, 
	Nadav Amit <>, Kees Cook <>, 
	"" <>, Jann Horn <>, 
	Heiko Carstens <>
Subject: Re: [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core)

On Fri, Jun 24, 2016 at 2:34 PM, Andy Lutomirski <> wrote:
>> So let me get the pure semantic patches done, and then for 4.8 when we
>> do the things that actually change real meaning we'll have a sane
>> base. Ok?
> Works for me.  I'll see whether my vmap patches still apply and, if
> needed, rebase and send a v5.

Ok, I'e pushed out the cleanups (and all the pulls that always come in
on Friday afternoon - gaah, I shouldn't have tried doing this on a

I'm attaching the current left-over patch that actually changes
things. It's obviously a composite, and includes your "remove
stack_smp_processor_id()" thing etc, so it's not meant to be used
as-is, but it does seem to work.

Interestingly, it seems pretty clean too, removing more lines than it
adds (despite the fact that it adds a new config option), and
generally making things prettier rather than the reverse.

That's always a good sign.


View attachment "patch.diff" of type "text/plain" (17073 bytes)

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