linux-kernel - Re: [01/22] sched: Provide scheduler_ipi() callback in response to smp_send

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Date:	Fri, 11 Mar 2011 16:27:27 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Milton Miller <miltonm@....com>
Cc:	Chris Mason <chris.mason@...cle.com>,
	Frank Rowand <frank.rowand@...sony.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Mike Galbraith <efault@....de>,
	Oleg Nesterov <oleg@...hat.com>, Paul Turner <pjt@...gle.com>,
	Jens Axboe <axboe@...nel.dk>,
	Yong Zhang <yong.zhang0@...il.com>,
	linux-kernel@...r.kernel.org,
	Russell King <rmk+kernel@....linux.org.uk>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Chris Metcalf <cmetcalf@...era.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: Re: [01/22] sched: Provide scheduler_ipi() callback in response to
 smp_send_reschedule()

On Fri, 2011-03-11 at 09:07 -0600, Milton Miller wrote:
> >       case PPC_MSG_RESCHEDULE:
> >               /* we notice need_resched on exit */
> 
> This comment should also be removed, as it was documenting the empty
> action. 

But its still true, TIF_NEED_RESCHED isn't going away and we still
notice that on the interrupt return path.
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