From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5710FC433EF for ; Mon, 18 Jul 2022 13:47:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235259AbiGRNr2 (ORCPT ); Mon, 18 Jul 2022 09:47:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233567AbiGRNrT (ORCPT ); Mon, 18 Jul 2022 09:47:19 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DF3B23BF2; Mon, 18 Jul 2022 06:47:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=J02fxs1n/8kyX7XvF1s7j1jst0rwr27utQliCyPhz3s=; b=rCspQLSSbzSPUkSSSMeqml9hI1 K5TCIMXTyIda3KbVR6Cr1Fa1FZhyuG3B/c/EEehcMV2QKCnEF8iCaaSDBCWF0x3RCNTZvmHyYbuVQ YXdYN0gJDHj2TnCKHGosJQQrlszhUc+d5F0ZjC6RBgRrGdxAFkv324tuMIGb/onvPyIgcCTrYOmIZ PaIkCwdiMk7WgLiSoMh6OzEfuUvqNkhbuMTXmmFC07v4rzNCSHUYK55K0Ddx7HdFwgFC/rc/mCOy/ Cp2ZGJSdOrr6TMr0pX4xIxnA3R5UWV5DHMPLI1ZpuL2nq3NHqZ9Ude8Z68Fk6xTDdShBia8t5GUqO aGTh4JCg==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1oDR5R-00Cj3N-Pw; Mon, 18 Jul 2022 13:47:02 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 1A010980299; Mon, 18 Jul 2022 15:47:01 +0200 (CEST) Date: Mon, 18 Jul 2022 15:47:01 +0200 From: Peter Zijlstra To: Tariq Toukan Cc: "David S. Miller" , Saeed Mahameed , Jakub Kicinski , Ingo Molnar , Juri Lelli , Eric Dumazet , Paolo Abeni , netdev@vger.kernel.org, Gal Pressman , Vincent Guittot , linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next V2 1/2] sched/topology: Expose sched_numa_find_closest Message-ID: References: <20220718124315.16648-1-tariqt@nvidia.com> <20220718124315.16648-2-tariqt@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220718124315.16648-2-tariqt@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 18, 2022 at 03:43:14PM +0300, Tariq Toukan wrote: > This logic can help device drivers prefer some remote cpus > over others, according to the NUMA distance metrics. > > Reviewed-by: Gal Pressman > Signed-off-by: Tariq Toukan Acked-by: Peter Zijlstra (Intel) > --- > include/linux/sched/topology.h | 2 ++ > kernel/sched/topology.c | 1 + > 2 files changed, 3 insertions(+) > > v2: > Replaced EXPORT_SYMBOL with EXPORT_SYMBOL_GPL, per Peter's comment. > > diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h > index 56cffe42abbc..d467c30bdbb9 100644 > --- a/include/linux/sched/topology.h > +++ b/include/linux/sched/topology.h > @@ -61,6 +61,8 @@ static inline int cpu_numa_flags(void) > { > return SD_NUMA; > } > + > +int sched_numa_find_closest(const struct cpumask *cpus, int cpu); > #endif > > extern int arch_asym_cpu_priority(int cpu); > diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c > index 05b6c2ad90b9..274fb2bd3849 100644 > --- a/kernel/sched/topology.c > +++ b/kernel/sched/topology.c > @@ -2066,6 +2066,7 @@ int sched_numa_find_closest(const struct cpumask *cpus, int cpu) > > return found; > } > +EXPORT_SYMBOL_GPL(sched_numa_find_closest); > > #endif /* CONFIG_NUMA */ > > -- > 2.21.0 >