linux-kernel - Re: [tip: core/rcu] rcu: Enable tick for nohz

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Message-ID: <20200126014318.GA5122@paulmck-ThinkPad-P72>
Date:   Sat, 25 Jan 2020 17:43:18 -0800
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org,
        x86 <x86@...nel.org>
Subject: Re: [tip: core/rcu] rcu: Enable tick for nohz_full CPUs slow to
 provide expedited QS

On Sat, Jan 25, 2020 at 11:48:46AM -0800, Paul E. McKenney wrote:
> On Sat, Jan 25, 2020 at 06:54:42PM +0100, Borislav Petkov wrote:
> > On Sat, Jan 25, 2020 at 08:10:50AM -0800, Paul E. McKenney wrote:

[ . . . ]

> > > So could you please try out the (untested) patch below?
> > 
> > Warning's gone.
> 
> Very good.  I will get it property prepared and tested, then send it
> along to Ingo.

And it passes my rcutorture testing as well!  If it does fine with 0day
and -next, I will send a pull request Sunday evening, Pacific Time.
In the meantime, it is right here in -rcu:

59d8cc6b2e37 ("rcu: Forgive slow expedited grace periods at boot time")

							Thanx, Paul