linux-kernel - Re: [PATCH RFC] cpu alloc cleanups and implementation improvement

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Date:	Thu, 20 Nov 2008 10:35:05 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Rusty Russell <rusty@...tcorp.com.au>
cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH RFC] cpu alloc cleanups and implementation improvement

On Mon, 17 Nov 2008, Rusty Russell wrote:

>   I've argued with Christoph that his implementation contains gratuitous
> obsolescence of perfectly-good APIs; hopefully providing real patches will
> give us a more useful debate.

I would not mind if you would take over from here. It seems that I
am into too many things again. Then you can also do the lower
casing that I find inconsistent.

> I hope this adds some light,

As I pointed out before there are numerous semantic differences that I
noted before. For the transition period where the percpu allocator has a
fixed area there will be issues with an immediate conversion because the
existing allocpercpu allows unbounded allocations and the cpualloc does
not.

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