linux-kernel - Re: [PATCH] rcu: Fix missing TICK_DEP_MASK_RCU

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Message-ID: <Y7nmihQ126cjqEss@lothringen>
Date:   Sat, 7 Jan 2023 22:39:22 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     Zqiang <qiang1.zhang@...el.com>, quic_neeraju@...cinc.com,
        joel@...lfernandes.org, rcu@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rcu: Fix missing TICK_DEP_MASK_RCU_EXP dependency check

On Wed, Dec 21, 2022 at 12:16:34PM -0800, Paul E. McKenney wrote:
> On Tue, Dec 20, 2022 at 10:16:25PM +0800, Zqiang wrote:
> > This commit add TICK_DEP_MASK_RCU_EXP dependency check in
> > check_tick_dependency(), fix commit df1e849ae4559 ("rcu: Enable
> > tick for nohz_full CPUs slow to provide expedited QS").
> > 
> > Signed-off-by: Zqiang <qiang1.zhang@...el.com>
> 
> Again, good eyes, thank you!!!
> 
> I have queued this for further review and testing, given that it affects
> pretty much only RCU.  However, if someone else would rather take it:
> 
> Acked-by: Paul E. McKenney <paulmck@...nel.org>


Thanks for picking it up! Please also add the following tags:

Fixes: df1e849ae455 ("rcu: Enable tick for nohz_full CPUs slow to provide expedited QS")
Acked-by: Frederic Weisbecker <frederic@...nel.org>

Thanks!