Re: [PATCH 2/2][RT] powerpc - Make the irq reverse mapping radix tree lockless
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2008-07-25 08:31:34
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On Fri, 2008-07-25 at 09:49 +0200, Peter Zijlstra wrote:
The only advantage of the concurrent radix tree over this model is that it can potentially do multiple modification operations at the same time.
Yup, we do not need that for the irq revmap... concurrent lookup is all we need. Cheers, Ben.