linux-kernel - Re: [PATCH 1/5] hrtimer: per-cpu cached values of ktime

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Message-Id: <20090508161034.d1bad204.akpm@linux-foundation.org>
Date:	Fri, 8 May 2009 16:10:34 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	mingo@...e.hu, paulus@...ba.org, cjashfor@...ux.vnet.ibm.com,
	linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl,
	tglx@...utronix.de
Subject: Re: [PATCH 1/5] hrtimer: per-cpu cached values of ktime

On Fri, 08 May 2009 18:52:20 +0200
Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:

> --- linux-2.6.orig/include/linux/hrtimer.h
> +++ linux-2.6/include/linux/hrtimer.h
> @@ -173,8 +173,13 @@ struct hrtimer_cpu_base {
>  	int				hres_active;
>  	unsigned long			nr_events;
>  #endif
> +	ktime_t				ktime_irq;
> +	int				ktime_irq_set;
>  };

struct hrtimer_cpu_base has nice kerneldoc which (used to) describe
its fields.

Please please please always always always comment data structures.  The
bang-for-your-comment-buck is higher than anywhere else.

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