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Message-ID: <alpine.DEB.2.11.1601080956330.3575@nanos>
Date:	Fri, 8 Jan 2016 10:04:44 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Petr Mladek <pmladek@...e.com>
cc:	Prarit Bhargava <prarit@...hat.com>, linux-kernel@...r.kernel.org,
	John Stultz <john.stultz@...aro.org>,
	Xunlei Pang <pang.xunlei@...aro.org>,
	Baolin Wang <baolin.wang@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Tejun Heo <tj@...nel.org>,
	Peter Hurley <peter@...leysoftware.com>,
	Vasily Averin <vvs@...tuozzo.com>,
	Joe Perches <joe@...ches.com>
Subject: Re: [PATCH 2/2] printk, Add printk.clock kernel parameter

On Thu, 7 Jan 2016, Petr Mladek wrote:
> On Thu 2016-01-07 10:38:37, Prarit Bhargava wrote:
> > Heh :)  I didn't even think of testing that.  I'll have to think about that a
> > bit more.  systemd logging must assume boot time/local time.  I'll ping those
> > guys with a patch if/when the next version of this gets accepted.
> 
> I am not sure how many tools would be affected by this.

I don't see a point in a gazillion of different clocks for printk either.

> An easier solution would be to normalize all times and always save the
> relative time since the boot as it is done now.

Why? What's wrong with simply using the existing ktime_get_mono_fast_ns()
instead of local_clock() and be done with it?

Thanks,

	tglx


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