[PATCH 0/1] arm64: enable PREEMPT_LAZY

Petr Tesarik ptesarik at suse.com
Wed Apr 30 01:38:13 PDT 2025


On Tue, 29 Apr 2025 21:27:52 +0100
Will Deacon <will at kernel.org> wrote:

> On Wed, 05 Mar 2025 11:49:24 +0100, Valentin Schneider wrote:
> > Hey folks,
> > 
> > This is a resubmission of Mark's patch [1]. I didn't end up changing anything
> > other than fluffing up the changelog.
> > 
> > I ran this under an arm64 VM, added some trace_printk's and checked that
> > sched_switch's between runnable hackbench threads would occurr in the right
> > conditions:
> > o with TIF_NEED_RESCHED_LAZY set
> >   o at the tick
> >   o at do_notify_resume()
> > o with TIF_NEED_RESCHED set
> > 
> > [...]  
> 
> Applied to arm64 (for-next/entry), thanks!
> 
> [1/1] arm64: enable PREEMPT_LAZY
>       https://git.kernel.org/arm64/c/c8597e2dd8b6

Great news. Thank you!

Petr T



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