From: Greg KH <gregkh@linuxfoundation.org>
To: Lukasz Luba <lukasz.luba@arm.com>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
daniel.lezcano@linaro.org, rui.zhang@intel.com
Subject: Re: [STABLE][PATCH 4.4] thermal/core/fair share: Lock the thermal zone while looping over instances
Date: Fri, 14 May 2021 12:56:13 +0200 [thread overview]
Message-ID: <YJ5XTW9TYvv7wYr6@kroah.com> (raw)
In-Reply-To: <20210514104916.19975-1-lukasz.luba@arm.com>
On Fri, May 14, 2021 at 11:49:16AM +0100, Lukasz Luba wrote:
> commit fef05776eb02238dcad8d5514e666a42572c3f32 upstream.
>
> The tz->lock must be hold during the looping over the instances in that
> thermal zone. This lock was missing in the governor code since the
> beginning, so it's hard to point into a particular commit.
>
> CC: stable@vger.kernel.org # 4.4
> Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
> ---
> Hi all,
>
> I've backported my patch which was sent to LKML:
> https://lore.kernel.org/linux-pm/20210422153624.6074-2-lukasz.luba@arm.com/
>
> The upstream patch failed while applying:
> https://lore.kernel.org/stable/16206371483193@kroah.com/
>
> This patch should apply to stable v4.4.y, on top of stable tree branch:
> linux-4.4.y which head was at:
> commit 47127fcd287c ("Linux 4.4.268")
What about 4.9, 4.14, 4.14, and 5.4 releases? They need this fix as
well, right?
thanks,
greg k-h
next prev parent reply other threads:[~2021-05-14 10:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 10:49 [STABLE][PATCH 4.4] thermal/core/fair share: Lock the thermal zone while looping over instances Lukasz Luba
2021-05-14 10:56 ` Greg KH [this message]
2021-05-14 10:58 ` Lukasz Luba
2021-05-17 10:29 ` Greg KH
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