linux-kernel - Re: [PATCH -tip] sched: Clean unused fields from struct rq

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Message-ID: <20090318215224.GA8030@hades.domain.com>
Date:	Wed, 18 Mar 2009 21:52:24 +0000
From:	Luis Henriques <henrix@...o.pt>
To:	Gregory Haskins <ghaskins@...ell.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -tip] sched: Clean unused fields from struct rq

Hi,
On Wed, Mar 18, 2009 at 05:00:06PM -0400, Gregory Haskins wrote:
> I actually key off the SCHEDSTAT_VERSION (currently 14) at the top of
> kernel/sched_stats.h.  Cursory inspection of the existing code and your
> patch says that this should actually be the value that needs updating
> (vs. vSched-Debug).  However, note that I am not sure if there are also
> users of sched-debug that need to see that version bump as well in order
> to remain compatible.

Just realised something while taking a look at you're schedtop: you are
referring to sched_stats, which shows data in /proc/schedstat, while my patch
actually targets sched_debug, which shows data in /proc/sched_debug.  And I
guess this is why we have 2 different versioning mechanisms:  they refer to
different things :-)

So, if this is correct, my last patch actually updates the correct version,
right?

Regards,
-- 
Luis Henriques
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