linux-kernel - Re: [PATCH] Allocate module.ref array dynamically

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Message-ID: <491A3EB9.8020203@sgi.com>
Date:	Tue, 11 Nov 2008 18:26:01 -0800
From:	Mike Travis <travis@....com>
To:	Rusty Russell <rusty@...tcorp.com.au>
CC:	Eric Dumazet <dada1@...mosbay.com>, Takashi Iwai <tiwai@...e.de>,
	Andreas Gruenbacher <agruen@...e.de>,
	Jan Blunck <jblunck@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: Re: [PATCH] Allocate module.ref array dynamically

Rusty Russell wrote:
> On Wednesday 12 November 2008 08:36:26 Eric Dumazet wrote:
>> I believe Mike Travis has a better patch for this problem, partly using new
>> percpu allocator.
> 
> Actually, I think this in in Christoph's hands now.  He's been wrangling with 
> getting us a real per-cpu allocator.
> 
> There's something in linux-next, but I'm not sure of the status. Christoph, is 
> this anticipated to make the next merge window, or am I best off merging a 
> patch like Eric's for the moment?
> 
> Thanks,
> Rusty.


I haven't looked closely at Christoph's latest but I believe the x86_64 version
is waiting for the zero-based percpu variables (and hence the combined pda/percpu
base.)  It's on the queue just under 4k cpus.

Cheers,
Mike
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