linux-kernel - Re: [patch 0/4] time/timekeeping: Simplify vsyscall locking

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Message-ID: <4F4E859E.9030902@mit.edu>
Date:	Wed, 29 Feb 2012 12:07:58 -0800
From:	Andy Lutomirski <luto@....EDU>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	LKML <linux-kernel@...r.kernel.org>,
	John Stultz <john.stultz@...aro.org>,
	Ingo Molnar <mingo@...e.hu>, Peter Anvin <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Tony Luck <tony.luck@...el.com>
Subject: Re: [patch 0/4] time/timekeeping: Simplify vsyscall locking

On 02/28/2012 11:46 AM, Thomas Gleixner wrote:
> vsyscall updates have a separate seqlock which nests into
> xtime_lock. There is no point to grab another lock for nothing. All it
> needs is to update the seqcount which is user space visible.
> 
> The following series cleans that up.

FWIW, patches 2 and 3 are
Reviewed-by: Andy Lutomirski <luto@...capital.net>

Can you let me know when these hit a git tree somewhere?  I have two
more vdso clock speedups I want to send for 3.4, and I'll rebase them on
top of these.

Thanks,
Andy
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