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Date:   Tue, 23 Mar 2021 15:02:07 +0100
From:   Frederic Weisbecker <frederic@kernel.org>
To:     "Paul E. McKenney" <paulmck@kernel.org>
Cc:     rcu@vger.kernel.org, linux-kernel@vger.kernel.org,
        kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com,
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        rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
        fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org
Subject: Re: [PATCH tip/core/rcu 2/3] rcu: Provide polling interfaces for
 Tiny RCU grace periods
Message-ID: <20210323140207.GA890343@lothringen>
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On Mon, Mar 22, 2021 at 12:45:22PM -0700, Paul E. McKenney wrote:
> On Mon, Mar 22, 2021 at 08:00:35PM +0100, Frederic Weisbecker wrote:
> > But poll_state_synchronize_rcu() checks that the gp_num has changed,
> > which is not needed for cond_synchronize_rcu() since this it is
> > only allowed to be called from a QS.
> 
> Good catch, and thank you!  Back to a single might_sleep() it is!

And then: Reviewed-by: Frederic Weisbecker <frederic@kernel.org>

Thanks!