linux-kernel - Re: [GIT PULL] nohz fixes

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Message-ID: <20130725210422.GA18254@gmail.com>
Date:	Thu, 25 Jul 2013 23:04:22 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Li Zhong <zhong@...ux.vnet.ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Borislav Petkov <bp@...en8.de>, Mike Galbraith <efault@....de>,
	Kevin Hilman <khilman@...aro.org>
Subject: Re: [GIT PULL] nohz fixes


* Frederic Weisbecker <fweisbec@...il.com> wrote:

> Ingo,
> 
> Please pull the timers/urgent branch that can be found at:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> 	timers/urgent
> 
> Just one thing you need to know: you reported me that the warning was
> "too much" to tell the user that he can't use full dynticks due to unstable tsc.
> 
> I discussed that with Steve and we concluded that we could keep the warning but
> only trigger it if the user explicitly wants to use the full dynticks which we
> deduce by checking if he filled the nohz_full= boot parameter or he selected
> CONFIG_NO_HZ_FULL_ALL. This way we make sure that the user knows what's going
> on but only if he really expected to use it.
> 
> If you still consider the tainting warning to be too much a hammer, even if only
> real users are warned, then tell me and I'll change that to some way you
> prefer.
> 
> 
> Thanks,
> 	Frederic
> ---
> 
> Li Zhong (1):
>       nohz: fix compile warning in tick_nohz_init()
> 
> Steven Rostedt (1):
>       nohz: Do not warn about unstable tsc unless user uses nohz_full
> 
> 
>  kernel/time/tick-sched.c |    5 ++---
>  1 files changed, 2 insertions(+), 3 deletions(-)

Pulled, thanks Frederic!

	Ingo
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