linux-kernel - Re: [PATCH v3 2/4] sched: Introduce migratable()

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Message-ID: <87o83x2g27.mognet@arm.com>
Date:   Thu, 27 Jan 2022 18:23:44 +0000
From:   Valentin Schneider <valentin.schneider@....com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        rcu@...r.kernel.org, linux-rt-users@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Steven Rostedt <rostedt@...dmis.org>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Josh Triplett <josh@...htriplett.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Steven Price <steven.price@....com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Mike Galbraith <efault@....de>
Subject: Re: [PATCH v3 2/4] sched: Introduce migratable()

On 27/01/22 11:07, Sebastian Andrzej Siewior wrote:
> On 2022-01-26 18:10:51 [+0000], Valentin Schneider wrote:
>> > | 2021-08-11 21:13 +0100 Valentin Schneider    ∙ sched: Introduce migratable()
>> > | 2021-08-11 21:13 +0100 Valentin Schneider    ∙ arm64: mm: Make arch_faults_on_old_pte() check for migratability
> …
>> Heh, had forgotten about those - I'm happy to repost with the
>> s/migratable/is_migratable/. I also need to go back to those splats I got
>> on my emag and fix the PMU/GPIO warnings...
>
> Now that I look at it gain, you might want to drop #1 and then #2 would
> switch to cant_migrate(). This might work…
>

Wasn't aware of cant_migrate(), that does look even better. Lemme give it a shot.

> Sebastian