Re: [PATCH] v4 RCU: the bloatwatch edition

Ingo Molnar
2009-05-06T12:09:45Z

* David Howells <dhowells@redhat.com> wrote:

> Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
>
> > This patch is a version of RCU designed for (!SMP && EMBEDDED)
> > provided as a proof of concept of a small-footprint RCU implementation.
> > In particular, the implementation of synchronize_rcu() is extremely
> > lightweight and high performance. It passes rcutorture testing in each
> > of the four relevant configurations (combinations of NO_HZ and PREEMPT)
> > on x86. This saves about 900 bytes compared to Classic RCU, and a
> > couple kilobytes compared to Hierarchical RCU (updated to 2.6.29):
> > ...
> > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>
> Acked-by: David Howells <dhowells@redhat.com>

i'm wondering what Andrew thinks - he had objections, right?

Ingo