From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
John Stultz <johnstul@us.ibm.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
stable@vger.kernel.org
Subject: Re: [PATCH 1/6] hrtimer: Provide clock_was_set_delayed()
Date: Wed, 11 Jul 2012 15:38:34 +0200 [thread overview]
Message-ID: <1342013914.3462.157.camel@twins> (raw)
In-Reply-To: <4FFD7A31.8000909@redhat.com>
On Wed, 2012-07-11 at 09:05 -0400, Prarit Bhargava wrote:
>
> Both of those options seem like a lot of work for something that happens once
> every 3-4 years, and may not happen ever again[1]. Based on that statement, if
> we're going to modify code I would prefer that it be as lightweight as possible.
> So, in terms of the kernel, option 2 is likely the best way to go rather than
> introducing new code that will be used once every 3-4 years.
Full agreed, however if we implement clock_was_set() like I just
proposed we'd use that code for every time the clock was modified, which
is a lot more often.
That said, I'm not a particular fan of it..
next prev parent reply other threads:[~2012-07-11 13:39 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-10 22:43 [PATCH 0/6] Fix for leapsecond caused hrtimer/futex issue (updated) John Stultz
2012-07-10 22:43 ` [PATCH 1/6] hrtimer: Provide clock_was_set_delayed() John Stultz
2012-07-11 12:15 ` Prarit Bhargava
2012-07-11 12:45 ` Thomas Gleixner
2012-07-11 13:05 ` Peter Zijlstra
2012-07-11 15:18 ` Thomas Gleixner
2012-07-11 15:56 ` Peter Zijlstra
2012-07-11 16:47 ` John Stultz
2012-07-12 7:44 ` Jan Ceuleers
2012-07-12 12:29 ` Prarit Bhargava
2012-07-11 13:05 ` Prarit Bhargava
2012-07-11 13:38 ` Peter Zijlstra [this message]
2012-07-11 21:40 ` [tip:timers/urgent] " tip-bot for John Stultz
2012-07-10 22:43 ` [PATCH 2/6] timekeeping: Fix leapsecond triggered load spike issue John Stultz
2012-07-11 21:41 ` [tip:timers/urgent] " tip-bot for John Stultz
2012-07-10 22:43 ` [PATCH 3/6] timekeeping: Maintain ktime_t based offsets for hrtimers John Stultz
2012-07-11 21:42 ` [tip:timers/urgent] " tip-bot for Thomas Gleixner
2012-07-10 22:43 ` [PATCH 4/6] hrtimer: Move lock held region in hrtimer_interrupt() John Stultz
2012-07-10 22:43 ` [PATCH 4/6] hrtimers: " John Stultz
2012-07-11 21:43 ` [tip:timers/urgent] " tip-bot for Thomas Gleixner
2012-07-10 22:43 ` [PATCH 5/6] timekeeping: Provide hrtimer update function John Stultz
2012-07-11 21:44 ` [tip:timers/urgent] " tip-bot for Thomas Gleixner
2012-07-10 22:43 ` [PATCH 6/6] hrtimer: Update hrtimer base offsets each hrtimer_interrupt John Stultz
2012-07-11 21:45 ` [tip:timers/urgent] " tip-bot for John Stultz
2012-07-15 15:22 ` [PATCH 6/6] " Andreas Schwab
2012-07-15 20:28 ` Rafael J. Wysocki
[not found] ` <m2y5mlnj5z.fsf__49536.0585897744$1342365803$gmane$org@igel.home>
2012-07-15 16:02 ` Andreas Schwab
2012-07-10 22:53 ` [PATCH 0/6] Fix for leapsecond caused hrtimer/futex issue (updated) John Stultz
2012-07-12 22:43 ` Jiri Bohac
2012-07-12 23:58 ` John Stultz
2012-07-10 23:00 ` John Stultz
2012-07-13 0:43 ` John Stultz
2012-07-11 10:59 ` Peter Zijlstra
2012-07-11 11:17 ` Ingo Molnar
2012-07-12 12:32 ` Prarit Bhargava
2012-07-11 12:16 ` Prarit Bhargava
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