linux-kernel - Re: [patch 05/50] sched: Provide schedule point for RT locks

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Message-ID: <87o8b5b05z.ffs@nanos.tec.linutronix.de>
Date:   Wed, 14 Jul 2021 13:32:56 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Davidlohr Bueso <dave@...olabs.net>
Subject: Re: [patch 05/50] sched: Provide schedule point for RT locks

On Wed, Jul 14 2021 at 12:17, Peter Zijlstra wrote:
> On Wed, Jul 14, 2021 at 11:49:47AM +0200, Thomas Gleixner wrote:
>> On Wed, Jul 14 2021 at 10:28, Peter Zijlstra wrote:
>> >
>> > #define SM_MASK_STATE          (~0U)
>> >
>> > Be even better?
>> 
>> SM_MASK_STATE is overengineered. See combo patch 4+5 below
>
> Yep, that should result in similar code as my proposal, thanks!
>
> nit: you like UINT_MAX better than (~0U) ?

No strong preference.