From: Mike Galbraith <efault@gmx.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [patch] sched: add the other missing clock update to migrate_task()
Date: Sun, 22 Nov 2009 19:14:49 +0100 [thread overview]
Message-ID: <1258913689.9457.15.camel@marge.simson.net> (raw)
In-Reply-To: <1258909123.6043.19.camel@marge.simson.net>
On Sun, 2009-11-22 at 17:58 +0100, Mike Galbraith wrote:
> On Sun, 2009-11-22 at 14:16 +0100, Peter Zijlstra wrote:
>
> > We should make double_rq_lock() and double_lock_balance() behave
> > equivalent wrt update_rq_clock().
> >
> > Current, depending on CONFIG_PREEMPT, double_lock_balance() already
> > updates both rq clocks.
>
> Hm, right. Better plan.
Oops, nope. Consistency is still a good plan, however, that update is
still needed, because it's the case where we're _not_ going to use the
migration thread.
-Mike
prev parent reply other threads:[~2009-11-22 18:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-22 12:11 Mike Galbraith
2009-11-22 13:16 ` Peter Zijlstra
2009-11-22 16:58 ` Mike Galbraith
2009-11-22 18:14 ` Mike Galbraith [this message]
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