On Thu, Apr 08, 2021 at 12:56:01PM +0200, Peter Zijlstra wrote:
> On Wed, Apr 07, 2021 at 09:24:12PM +0100, Mel Gorman wrote:
> > Why local_lock? PREEMPT_RT considers the following sequence to be unsafe
> > as documented in Documentation/locking/locktypes.rst
> >
> >local_irq_disable();
> >
On Wed, Apr 07, 2021 at 09:24:12PM +0100, Mel Gorman wrote:
> Why local_lock? PREEMPT_RT considers the following sequence to be unsafe
> as documented in Documentation/locking/locktypes.rst
>
>local_irq_disable();
>raw_spin_lock(&lock);
Almost, the above is actually OK on RT. The problema
For MM people, the whole series is relevant but patch 3 needs particular
attention for memory hotremove as I had problems testing it because full
zone removal always failed for me. For RT people, the most interesting
patches are 2, 9 and 10 with 2 being the most important.
This series requires pat
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