linux-kernel - Re: [patch V3 6/6] rcu: Prevent false positive softirq warning on RT

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Message-ID: <20210309130620.GB236340@lothringen>
Date:   Tue, 9 Mar 2021 14:06:20 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Paul McKenney <paulmck@...nel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [patch V3 6/6] rcu: Prevent false positive softirq warning on RT

On Tue, Mar 09, 2021 at 09:55:58AM +0100, Thomas Gleixner wrote:
> Soft interrupt disabled sections can legitimately be preempted or schedule
> out when blocking on a lock on RT enabled kernels so the RCU preempt check
> warning has to be disabled for RT kernels.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Tested-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> Reviewed-by: Paul E. McKenney <paulmck@...nel.org>

Reviewed-by: Frederic Weisbecker <frederic@...nel.org>