From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 36C08B711C for ; Tue, 8 Feb 2011 00:54:02 +1100 (EST) Received: from j77219.upc-j.chello.nl ([24.132.77.219] helo=dyad.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.72 #1 (Red Hat Linux)) id 1PmRX3-000699-Hb for linuxppc-dev@lists.ozlabs.org; Mon, 07 Feb 2011 13:53:33 +0000 Subject: Re: [PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule() From: Peter Zijlstra To: Benjamin Herrenschmidt In-Reply-To: <1297034792.14982.10.camel@pasglop> References: <1295262433.30950.53.camel@laptop> <1297034792.14982.10.camel@pasglop> Content-Type: text/plain; charset="UTF-8" Date: Mon, 07 Feb 2011 14:54:19 +0100 Message-ID: <1297086859.13327.16.camel@laptop> Mime-Version: 1.0 Cc: linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, "H. Peter Anvin" , Heiko Carstens , Paul Mackerras , Helge Deller , sparclinux@vger.kernel.org, Linux-Arch , linux-s390@vger.kernel.org, Jesper Nilsson , Jeremy Fitzhardinge , Russell King , Hirokazu Takata , x86@kernel.org, "James E.J. Bottomley" , virtualization@lists.osdl.org, Ingo Molnar , Matt Turner , Fenghua Yu , Mike Frysinger , user-mode-linux-devel@lists.sourceforge.net, Konrad Rzeszutek Wilk , Jeff Dike , Chris Metcalf , xen-devel@lists.xensource.com, Mikael Starvik , linux-m32r@ml.linux-m32r.org, Ivan Kokshaysky , user-mode-linux-user@lists.sourceforge.net, uclinux-dist-devel@blackfin.uclinux.org, Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Richard Henderson , Tony Luck , linux-parisc@vger.kernel.org, linux-cris-kernel@axis.com, linux-am33-list@redhat.com, linux-kernel@vger.kernel.org, Ralf Baechle , Kyle McMartin , Paul Mundt , linux-alpha@vger.kernel.org, Martin Schwidefsky , linux390@de.ibm.com, Koichi Yasutake , linuxppc-dev@lists.ozlabs.org, "David S. Miller" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Thanks Ben!