Messages in this thread | | | Date | Fri, 25 Jul 2008 10:36:01 +0200 | From | Sebastien Dugue <> | Subject | Re: [PATCH 2/2][RT] powerpc - Make the irq reverse mapping radix tree lockless |
| |
On Fri, 25 Jul 2008 18:27:20 +1000 Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
> 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. >
Shouldn't we care about concurrent insertion and deletion in the tree? I agree that concern might be a bit artificial but in theory that can happen.
Sebastien.
| |