linux-kernel - Re: [PATCH 11/14] hrtimer: remove active_bases field from struct hrtimer_cpu

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Message-ID: <alpine.DEB.2.02.1403261827020.21095@ionos.tec.linutronix.de>
Date:	Wed, 26 Mar 2014 18:28:54 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Viresh Kumar <viresh.kumar@...aro.org>
cc:	linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
	fweisbec@...il.com, linaro-networking@...aro.org
Subject: Re: [PATCH 11/14] hrtimer: remove active_bases field from struct
 hrtimer_cpu_base



On Wed, 26 Mar 2014, Viresh Kumar wrote:

> Active_bases field of struct hrtimer_cpu_base is used at only one place, i.e.
> hrtimer_interrupt() and at that place too we can easily use timerqueue_getnext()
> instead to achieve the same result. I don't think this will have any performance
> degradation issues and so removing this field.

Instead of removing it we should actually use ffs and avoid the whole
looping. That was the intention in the first place, but I never wrote
the patch...

Thanks,

	tglx

 
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