Re: FAILED: patch "[PATCH] srcu: Allow use of Classic SRCU from both process and" failed to apply to 4.9-stable tree

Paul E. McKenney
2017-06-12T17:21:33Z

On Mon, Jun 12, 2017 at 06:35:18PM +0200, Paolo Bonzini wrote:
>
>
> On 12/06/2017 18:31, Paul E. McKenney wrote:
> > Indeed, this won't apply cleanly to 4.9 and earlier because of some
> > changes to the way SRCU works. And if you try to make the obvious
> > adjustments to make the patch apply, you will break SRCU.
> >
> > So, question for Paolo... How important is it to push this back to
> > v4.9 and earlier? To make this happen, some non-trivial SRCU changes
> > would also need to be backported.
>
> Indeed I had noticed commit f2c4689640e9 ("srcu: Implement
> more-efficient reader counts", 2017-01-25). It's not very important.

OK, good to know. I haven't given up on it, so it might get done in
any case, but no promises. Not yet, anyway. ;-)

Thanx, Paul