linux-kernel - Re: [RFC PATCH 04/30] s390: Convert open coded idle time seqcount

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Message-ID: <20141201134613.GF4074@osiris>
Date:	Mon, 1 Dec 2014 14:46:13 +0100
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Tony Luck <tony.luck@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Oleg Nesterov <oleg@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Ingo Molnar <mingo@...nel.org>, Rik van Riel <riel@...hat.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [RFC PATCH 04/30] s390: Convert open coded idle time seqcount

On Fri, Nov 28, 2014 at 07:23:34PM +0100, Frederic Weisbecker wrote:
> s390 uses open coded seqcount to synchronize idle time accounting.
> Lets consolidate it with the standard API.
> 
> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Cc: Heiko Carstens <heiko.carstens@...ibm.com>
> Cc: Ingo Molnar <mingo@...nel.org>
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Cc: Oleg Nesterov <oleg@...hat.com>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Rik van Riel <riel@...hat.com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Tony Luck <tony.luck@...el.com>
> Cc: Wu Fengguang <fengguang.wu@...el.com>
> Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
> ---
>  arch/s390/include/asm/idle.h |  3 ++-
>  arch/s390/kernel/idle.c      | 28 +++++++++++++++-------------
>  2 files changed, 17 insertions(+), 14 deletions(-)

This is a nice cleanup. I'll apply it to the s390 tree, so it will
go upstream independently of this discussion.

Thanks,
Heiko

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