linux-kernel - Re: [patch 14/50] locking/rtmutex: Add wake_state to rt_mutex

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Message-ID: <20210714101831.GC2591@worktop.programming.kicks-ass.net>
Date:   Wed, 14 Jul 2021 12:18:31 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
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 14/50] locking/rtmutex: Add wake_state to rt_mutex_waiter

On Tue, Jul 13, 2021 at 05:11:08PM +0200, Thomas Gleixner wrote:
> @@ -33,6 +34,7 @@ struct rt_mutex_waiter {
>  	struct rb_node		pi_tree_entry;
>  	struct task_struct	*task;
>  	struct rt_mutex		*lock;
> +	int			wake_state;
>  	int			prio;
>  	u64			deadline;

State is 'unsigned int', but we're (luckily) not yet at the MSB so it's
a bit moot, still...