linux-kernel - [RFC][PATCH 0/2] perf vs d-cache aliasses

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Date:	Mon, 21 Sep 2009 16:08:48 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	David Miller <davem@...emloft.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [RFC][PATCH 0/2] perf vs d-cache aliasses


Hi David,

based on your vmalloc code, an alternative implementation that lets x86 stay
with regular allocations.

While I'm sad to have to propose having two implementations around, I see no
other way to please both sides.

Alternative to placing the code in arch/sparc we could do something like

CONFIG_PERF_WANTS_VMALLOC and place both somewhere in kernel/



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