linux-kernel - Re: [ANNOUNCE] v4.11.5-rt1

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Date:   Sat, 17 Jun 2017 10:14:37 +0200
From:   Mike Galbraith <efault@....de>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [ANNOUNCE] v4.11.5-rt1

On Fri, 2017-06-16 at 12:56 +0200, Sebastian Andrzej Siewior wrote:
> Dear RT folks!
> 
> I'm pleased to announce the v4.11.5-rt1 patch set. 
> The release has been delayed due to the hotplug rework that was started
> before the final v4.11 release. However the new code has not been
> stabilized yet and it was decided to bring back the old patches before
> delaying the v4.11-RT release any longer. We will try to complete the
> hotplug rework (for RT) in the v4.11 cycle.
> 
> Changes since v4.9.39-rt21:
> 
>   - rebase to v4.11.5

Hi Sebastian,

I noticed a couple things wrt migrate_disable() changes...

During that rebase, migrate_disable() was changed to no longer map to
preempt_disable() for nonrt, but some patches still assume it does.  It
now depends upon PREEMPT_COUNT, the RT workaround in futex.c induces
grumbling in nonrt builds with PREEMPT_COUNT enabled.

	-Mike