linux-kernel - Re: Not able to use HIGH_RES

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Message-ID: <4F6BECA7.7030007@linaro.org>
Date:	Thu, 22 Mar 2012 20:23:19 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	Ajeet Yadav <ajeet.yadav.77@...il.com>
CC:	Russell King - ARM Linux <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>
Subject: Re: Not able to use HIGH_RES_TIMERS on ARM

On 03/22/2012 03:25 AM, Ajeet Yadav wrote:
> I understand your point,
> Our target (2.6) always had ARCH_USES_GETTIMEOFFSET=y , but still we
> were able to use the TRACER in past until the patch "kill
> GENERIC_TIMER" published, anyone will ask me remove this patch and use
> TRACER, becaue it was working before. :)

Ajeet,
     Sorry, by TRACER, do you mean PREEMPT_TRACER or something else? And 
what specific 2.6.X kernel were you using?

Steven, I'm seeing:
config PREEMPT_TRACER
         bool "Preemption-off Latency Tracer"
         default n
         depends on !ARCH_USES_GETTIMEOFFSET

Do you have any context as to why is !ARCH_USES_GETTIMEOFFSET flagged here?

thanks
-john

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