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

Greg KH
2017-06-12T19:17:43Z

On Mon, Jun 12, 2017 at 09:31:51AM -0700, Paul E. McKenney wrote:
> On Mon, Jun 12, 2017 at 02:17:59PM +0200, gregkh@linuxfoundation.org wrote:
> >
> > The patch below does not apply to the 4.9-stable tree.
> > If someone wants it applied there, or to any other stable or longterm
> > tree, then please email the backport, including the original git commit
> > id to <stable@vger.kernel.org>.
>
> 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.

Oh good, I was wondering about that, I thought I had backported it
properly, but then I figured I really don't know how rcu works in
detail, so decided to just punt and reject it :)

thanks,

greg k-h