Re: [ANNOUNCE] v4.11.5-rt1

From: Sebastian Andrzej Siewior
Date: Mon Jun 19 2017 - 04:52:19 EST

On 2017-06-17 10:14:37 [+0200], Mike Galbraith wrote:
> Hi Sebastian,
Hi Mike,

> 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. ÂIt
> now depends upon PREEMPT_COUNT, the RT workaround in futex.c induces
> grumbling in nonrt builds with PREEMPT_COUNT enabled.

argh, right. It was planned to get it merged upstream but due to
$reasons we never got that far. For that reason I would simply revert
that change and let migrate_disable() map to preempt_disable() as it did

> -Mike