linux-kernel - Re: CONFIG_HIGHPTE vs. sub-page page tables.

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Message-ID: <8bd0f97a0802090956r2de999fap7f16e173858be240@mail.gmail.com>
Date:	Sat, 9 Feb 2008 12:56:23 -0500
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	schwidefsky@...ibm.com
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: CONFIG_HIGHPTE vs. sub-page page tables.

On Feb 9, 2008 5:56 AM, Martin Schwidefsky <schwidefsky@...ibm.com> wrote:
> On Sat, 2008-02-09 at 11:37 +0100, Ingo Molnar wrote:
> > i think the worst is over already and i'm reasonably sure that there are
> > no more bugs in it - this _is_ a 1:1 patch after all, so in theory the
> > worst side-effect should be build breakages due to include file
> > spaghetti. The window for this particular breakage was just 256 commits,
> > that's OK i think.
>
> Except for the breakage of all nommu architectures .. they need the
> pgtable_t as well due to the pte_fn_t type.

so why wasnt this in the original patch ?  why do no-mmu arches have
to add the pgtable_t typedefs themselves ?
-mike
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