linux-kernel - Re: [PATCH 04/11] powerpc: Simplify update

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Message-ID: <20100727234152.GC14947@brick.ozlabs.ibm.com>
Date:	Wed, 28 Jul 2010 09:41:52 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	John Stultz <johnstul@...ibm.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Anton Blanchard <anton@...ba.org>,
	Thomas Gleixner <tglx@...utronix.de>, linuxppc-dev@...abs.org,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH 04/11] powerpc: Simplify update_vsyscall

On Tue, Jul 13, 2010 at 05:56:21PM -0700, John Stultz wrote:

> Currently powerpc's update_vsyscall calls an inline update_gtod.
> However, both are straightforward, and there are no other users,
> so this patch merges update_gtod into update_vsyscall.
> 
> Compiles, but otherwise untested.

This and the following two patches will cause interesting conflicts
with two commits in Ben Herrenschmidt's powerpc.git next branch,
specifically 8fd63a9e ("powerpc: Rework VDSO gettimeofday to prevent
time going backwards") and c1aa687d ("powerpc: Clean up obsolete code
relating to decrementer and timebase") from me.  In fact the first of
those two commits includes changes equivalent to those in your 5/11
patch ("powerpc: Cleanup xtime usage"), as far as I can see.

BTW, BenH's tree is at:

git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git

Paul.
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