linux-kernel - Re: [PATCH v6 20/21] arm64: Remove logic to kill 32-bit tasks on 64-bit-only cores

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Date:   Mon, 24 May 2021 16:47:59 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Will Deacon <will@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org, Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Qais Yousef <qais.yousef@....com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Quentin Perret <qperret@...gle.com>, Tejun Heo <tj@...nel.org>,
        Li Zefan <lizefan@...wei.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Ingo Molnar <mingo@...hat.com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>, kernel-team@...roid.com
Subject: Re: [PATCH v6 20/21] arm64: Remove logic to kill 32-bit tasks on
 64-bit-only cores

On Tue, May 18, 2021 at 10:47:24AM +0100, Will Deacon wrote:
> The scheduler now knows enough about these braindead systems to place
> 32-bit tasks accordingly, so throw out the safety checks and allow the
> ret-to-user path to avoid do_notify_resume() if there is nothing to do.
> 
> Signed-off-by: Will Deacon <will@...nel.org>

Acked-by: Catalin Marinas <catalin.marinas@....com>