linux-kernel - Re: [patch V2 08/10] timer: Implement the hierarchical pull model

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Message-ID: <20170419085258.jlfwmhure5anayff@hirez.programming.kicks-ass.net>
Date:   Wed, 19 Apr 2017 10:52:58 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        John Stultz <john.stultz@...aro.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Anna-Maria Gleixner <anna-maria@...utronix.de>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        linux-pm@...r.kernel.org, Arjan van de Ven <arjan@...radead.org>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Frederic Weisbecker <fweisbec@...il.com>,
        Rik van Riel <riel@...hat.com>
Subject: Re: [patch V2 08/10] timer: Implement the hierarchical pull model

On Tue, Apr 18, 2017 at 01:11:10PM +0200, Thomas Gleixner wrote:
> +		raw_spin_lock_nested(&parent->lock, parent->level);
> +	raw_spin_lock_nested(&group->lock, group->level);
> +	raw_spin_lock_nested(&group->lock, group->level);

An not a comment on the locking order and why this annotation isn't
borken.