linux-kernel - Re: [PATCH 1/5] resources: add arch hook for preventing allocation in reserved areas

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Date:	Sat, 11 Dec 2010 19:34:05 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Bjorn Helgaas <bjorn.helgaas@...com>, Len Brown <lenb@...nel.org>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, Adam Belay <abelay@....edu>,
	Matthew Garrett <mjg@...hat.com>,
	Dan Williams <dcbw@...hat.com>, rjw@...k.pl
Subject: Re: [PATCH 1/5] resources: add arch hook for preventing allocation in
 reserved areas

On Fri, Dec 10, 2010 at 5:37 PM, Jesse Barnes <jbarnes@...tuousgeek.org> wrote:
>
> Thanks, I'll add Dan and Rafael's tested-bys to the patches (they're
> already in my for-linus tree).  Unless Linus has a problem with them
> I'll send them over to him this weekend or Monday.

See my other email I just sent out.

I really am not going to take some totally new experimental and hacky
major PCI resource management thing this late in the -rc game. No way,
no how.

If the top-down allocator is causing regressions that cannot be fixed
by _simple_ patches, we're simply going to have to undo it. What's the
advantage of top-down? None. Not if we then need all this crap, which
we could as easily do on top of the bottom-up one WITHOUT any
regressions.

Why isn't anybody else questioning the whole basic premise here?

                    Linus
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