linux-kernel - Re: [PATCH 0/6] Fix for leapsecond caused hrtimer/futex issue (updated)

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Message-ID: <4FFF6F23.3090108@us.ibm.com>
Date:	Thu, 12 Jul 2012 17:43:15 -0700
From:	John Stultz <johnstul@...ibm.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Prarit Bhargava <prarit@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, stable@...r.kernel.org
Subject: Re: [PATCH 0/6] Fix for leapsecond caused hrtimer/futex issue (updated)

On 07/10/2012 04:00 PM, John Stultz wrote:
> On 07/10/2012 03:43 PM, John Stultz wrote:
>> Over the weekend, Thomas got a chance to review the leap second fix
>> in more detail and had a few additional changes he wanted to make
>> to improve performance as well as style.
>>
>> So this iteration includes his modifications.
>>
>> Once merged, I'll be working to get the backports finished as quickly
>> as I can and sent to -stable.
>>
>
> Once again, here's the test case I've been using to stress test 
> leapsecond insertion/deletion (the deletion testing is new since last 
> round).

Prarit noticed a small bug with the test case. We're not initializing 
the timespec tv_nsec value before sleeping, so in some cases 
clock_nanosleep will return -EINVAL.

This version fixes this and cleans up some of the timespec/timeval usage.

thanks
-john


View attachment "leap-a-day.c" of type "text/x-csrc" (5540 bytes)