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 X-Spam-Level: X-Spam-Status: No, score=-14.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 554C7C433DF for ; Wed, 19 Aug 2020 14:03:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 216412076E for ; Wed, 19 Aug 2020 14:03:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="F9KtcfA+"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="DyQ12eXk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728411AbgHSODM (ORCPT ); Wed, 19 Aug 2020 10:03:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728060AbgHSOCr (ORCPT ); Wed, 19 Aug 2020 10:02:47 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C76DC061383; Wed, 19 Aug 2020 07:02:46 -0700 (PDT) Date: Wed, 19 Aug 2020 14:02:41 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1597845762; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1ckJeiS/DWXHXyS8NzN3xiQGdTAKjAdTUNsWAa4Smc4=; b=F9KtcfA+U7ABojo1+QaSBTOvfbljwPjrU3zmUejWaNXilwzCznU0RW+Jl6sAU3ho+zAEfv K3gjHfQVCIyZxmIcjGwn/1iF4F/wUvmcvkzYDhxkY98F+6rE8RNiIpMC6WacAelEF/mYMS sMOc/ZARp8YVcIXX0lRIA9dbFgB53O+O18EvAQl1pvCIB03AhUzZhM0ND0v9hFaw3y4Xf2 v08w4WGKu8ea6XwKcSOW5/hwlu41DurJqAnJ7JUd2mF9DYWlniIwI6M8gYn+t6L0c3quMB i1XP002ZgXEwU83HzgAJ6CwXvAhXeBRNertculuEf95eBbzV7G8iii90GJjmMg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1597845762; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1ckJeiS/DWXHXyS8NzN3xiQGdTAKjAdTUNsWAa4Smc4=; b=DyQ12eXkc3sE7lKU1IgRyjsCRv3EGw7P+Wkp42P/YrXjPBLKhY52mikuBWWGXMOwmEdFeb Xs8YvpWK2sXs6PCA== From: "tip-bot2 for Valentin Schneider" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] sched/topology: Mark SD_NUMA as SDF_NEEDS_GROUPS Cc: Valentin Schneider , Ingo Molnar , Peter Zijlstra , x86 , LKML In-Reply-To: <20200817113003.20802-17-valentin.schneider@arm.com> References: <20200817113003.20802-17-valentin.schneider@arm.com> MIME-Version: 1.0 Message-ID: <159784576167.3192.9507446083732831397.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the sched/core branch of tip: Commit-ID: 5f4a1c4ea44728aa80be21dbf3a0469b5ca81d88 Gitweb: https://git.kernel.org/tip/5f4a1c4ea44728aa80be21dbf3a0469b5ca81d88 Author: Valentin Schneider AuthorDate: Mon, 17 Aug 2020 12:30:02 +01:00 Committer: Ingo Molnar CommitterDate: Wed, 19 Aug 2020 10:49:50 +02:00 sched/topology: Mark SD_NUMA as SDF_NEEDS_GROUPS There would be no point in preserving a sched_domain with a single group just because it has this flag set. Add it to SD_DEGENERATE_GROUPS_MASK. Signed-off-by: Valentin Schneider Signed-off-by: Ingo Molnar Acked-by: Peter Zijlstra Link: https://lore.kernel.org/r/20200817113003.20802-17-valentin.schneider@arm.com --- include/linux/sched/sd_flags.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/sched/sd_flags.h b/include/linux/sched/sd_flags.h index 29af5f0..34b21e9 100644 --- a/include/linux/sched/sd_flags.h +++ b/include/linux/sched/sd_flags.h @@ -151,5 +151,6 @@ SD_FLAG(SD_OVERLAP, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS) * Cross-node balancing * * SHARED_PARENT: Set for all NUMA levels above NODE. + * NEEDS_GROUPS: No point in preserving domain if it has a single group. */ -SD_FLAG(SD_NUMA, SDF_SHARED_PARENT) +SD_FLAG(SD_NUMA, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS)