linux-kernel - Re: [PATCH] arm64: Select POSIX_CPU_TIMERS_TASK

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Message-Id: <163540984338.3796555.9507472460040267677.b4-ty@kernel.org>
Date:   Thu, 28 Oct 2021 10:20:47 +0100
From:   Will Deacon <will@...nel.org>
To:     tglx@...utronix.de, Nicolas Saenz Julienne <nsaenzju@...hat.com>,
        catalin.marinas@....com
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: Select POSIX_CPU_TIMERS_TASK_WORK

On Mon, 18 Oct 2021 16:47:13 +0200, Nicolas Saenz Julienne wrote:
> With 6caa5812e2d1 ("KVM: arm64: Use generic KVM xfer to guest work
> function") all arm64 exit paths are properly equipped to handle the
> POSIX timers' task work.
> 
> Deferring timer callbacks to thread context, not only limits the amount
> of time spent in hard interrupt context, but is a safer
> implementation[1], and will allow PREEMPT_RT setups to use KVM[2].
> 
> [...]

Applied to arm64 (for-next/misc), thanks!

[1/1] arm64: Select POSIX_CPU_TIMERS_TASK_WORK
      https://git.kernel.org/arm64/c/a68773bd32d9

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev