linux-kernel - Re: [PATCH 11/13] rcu/nocb: Only cancel nocb timer if not polling

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Message-ID: <20210310220809.GB2949@lothringen>
Date:   Wed, 10 Mar 2021 23:08:09 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Boqun Feng <boqun.feng@...il.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Neeraj Upadhyay <neeraju@...eaurora.org>,
        Josh Triplett <josh@...htriplett.org>,
        Stable <stable@...r.kernel.org>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: Re: [PATCH 11/13] rcu/nocb: Only cancel nocb timer if not polling

On Tue, Mar 02, 2021 at 05:22:29PM -0800, Paul E. McKenney wrote:
> On Tue, Feb 23, 2021 at 01:10:09AM +0100, Frederic Weisbecker wrote:
> > No need to disarm the nocb_timer if rcu_nocb is polling because it
> > shouldn't be armed either.
> > 
> > Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
> > Cc: Josh Triplett <josh@...htriplett.org>
> > Cc: Lai Jiangshan <jiangshanlai@...il.com>
> > Cc: Joel Fernandes <joel@...lfernandes.org>
> > Cc: Neeraj Upadhyay <neeraju@...eaurora.org>
> > Cc: Boqun Feng <boqun.feng@...il.com>
> 
> OK, so it does make sense to move that del_timer() under the following
> "if" statement, then.  ;-)

Right, probably I should have handled that in the beginning of the patchset
instead of the end but heh, my mind is never that clear.

Thanks.