From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: gregkh@linuxfoundation.org, linuc.decode@gmail.com,
torvalds@linux-foundation.org, stable@vger.kernel.org
Subject: Re: FAILED: patch "[PATCH] srcu: Allow use of Classic SRCU from both process and" failed to apply to 4.9-stable tree
Date: Mon, 12 Jun 2017 10:21:30 -0700 [thread overview]
Message-ID: <20170612172130.GY3721@linux.vnet.ibm.com> (raw)
In-Reply-To: <af48b0f7-cbb9-1b92-0ffd-4bce1ed79b35@redhat.com>
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
next prev parent reply other threads:[~2017-06-12 17:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-12 12:17 FAILED: patch "[PATCH] srcu: Allow use of Classic SRCU from both process and" failed to apply to 4.9-stable tree gregkh
2017-06-12 16:31 ` Paul E. McKenney
2017-06-12 16:35 ` Paolo Bonzini
2017-06-12 17:21 ` Paul E. McKenney [this message]
2017-06-12 19:17 ` Greg KH
2017-06-12 20:15 ` Paul E. McKenney
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