From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to
 smp_send_reschedule()
Date: Mon, 07 Feb 2011 14:54:19 +0100
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>, Ivan Kokshaysky <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, Russell King <linux@arm.linux.org.uk>, Mike Frysinger <vapier@gentoo.org>, Mikael Starvik <starvik@axis.com>, Jesper Nilsson <jesper.nilsson@axis.com>, Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>, Hirokazu Takata <takata@linux-m32r.org>, Ralf Baechle <ralf@linux-mips.org>, David Howells <dhowells@redhat.com>, Koichi Yasutake <yasutake.koichi@jp.panasonic.com>, Kyle McMartin <kyle@mcmartin.ca>, Helge Deller <deller@gmx.de>, "James E.J. Bottomley" <jejb@parisc-linux.org>, Paul Mackerras <paulus@samba.org>, Martin Schwidefsky <schwidefsky@de.ibm.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, linux390@de.ibm
List-Id: linux-arch.vger.kernel.org

On Mon, 2011-02-07 at 10:26 +1100, Benjamin Herrenschmidt wrote:
> You missed:
> 
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 9813605..467d122 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -98,6 +98,7 @@ void smp_message_recv(int msg)
>                 break;
>         case PPC_MSG_RESCHEDULE:
>                 /* we notice need_resched on exit */
> +               scheduler_ipi();
>                 break;
>         case PPC_MSG_CALL_FUNC_SINGLE:
>                 generic_smp_call_function_single_interrupt();
> 
> Fold that in and add:
> 
> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Thanks Ben!