Re: [PATCH v9 00/15] arm64: support poll_idle()
From: Will Deacon
Date: Tue Jan 21 2025 - 04:56:40 EST
On Mon, Jan 20, 2025 at 01:13:25PM -0800, Ankur Arora wrote:
>
> Ankur Arora <ankur.a.arora@xxxxxxxxxx> writes:
>
> > This patchset adds support for polling in idle via poll_idle() on
> > arm64.
> >
> > There are two main changes in this version:
> >
> > 1. rework the series to take Catalin Marinas' comments on the semantics
> > of smp_cond_load_relaxed() (and how earlier versions of this
> > series were abusing them) into account.
>
> There was a recent series adding resilient spinlocks which might also have
> use for an smp_cond_load_{acquire,release}_timeout() interface.
> (https://lore.kernel.org/lkml/20250107192202.GA36003@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/)
Urgh, that reminds me that I need to go look at that...
Will