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SubjectRe: [PATCH] mmu notifiers #v8
On Tue, Mar 04, 2008 at 11:35:32AM +0100, Peter Zijlstra wrote:
>
> On Mon, 2008-03-03 at 13:15 -0600, Jack Steiner wrote:
>
> > I haven't thought about locking requirements for the radix tree. Most accesses
> > would be read-only & updates infrequent. Any chance of an RCU-based radix
> > implementation? Otherwise, don't we add the potential for hot locks/cachelines
> > for threaded applications ???
>
> The current radix tree implementation in the kernel is RCU capable. We
> just don't have many RCU users yet.

Ahhh. You are right. I thought I looked but obviously missed it.


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