From: John Stultz <johnstul@us.ibm.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Yong Zhang <yong.zhang0@gmail.com>,
David Daney <ddaney.cavm@gmail.com>
Subject: Re: [PATCH] clocksource: Avoid selecting mult values that might overflow when adjusted
Date: Thu, 03 Nov 2011 11:14:04 -0400 [thread overview]
Message-ID: <1320333244.3681.22.camel@js-netbook> (raw)
In-Reply-To: <alpine.LFD.2.02.1111031552340.2829@ionos>
On Thu, 2011-11-03 at 15:52 +0100, Thomas Gleixner wrote:
> On Thu, 3 Nov 2011, Thomas Gleixner wrote:
> > On Thu, 3 Nov 2011, John Stultz wrote:
> > > Oh, and the other bit is that not all clocksources have been converted
> > > over to using clocksource_register_hz/khz, so some may be using very
> > > small shift values, which could more easily hit large % mult adjustment
> > > (due to the resulting coarseness of each integer change) that wouldn't
> > > cause overflows.
> >
> > Fair enough. I'm queuing it.
>
> That want's a cc stable as well, right ?
Good point. Yes.
thanks
-john
next prev parent reply other threads:[~2011-11-03 15:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-02 20:01 [PATCH] clocksource: Avoid selecting mult values that might overflow when adjusted John Stultz
2011-11-03 3:10 ` Yong Zhang
2011-11-03 9:36 ` Américo Wang
2011-11-04 2:16 ` Yong Zhang
2011-11-03 12:05 ` Thomas Gleixner
2011-11-03 13:10 ` John Stultz
2011-11-03 13:26 ` Thomas Gleixner
2011-11-03 14:01 ` John Stultz
2011-11-03 14:09 ` John Stultz
2011-11-03 14:49 ` Thomas Gleixner
2011-11-03 14:52 ` Thomas Gleixner
2011-11-03 15:14 ` John Stultz [this message]
2011-11-03 21:10 ` Ingo Molnar
2011-11-04 13:11 ` John Stultz
2011-11-04 15:20 ` Ingo Molnar
2011-11-08 3:09 ` John Stultz
2011-11-08 3:11 ` Yong Zhang
2011-11-08 5:02 ` Yong Zhang
2011-11-08 21:39 ` John Stultz
2011-11-09 1:46 ` Yong Zhang
2011-11-10 15:05 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2011-11-09 2:08 John Stultz
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