From nobody Sun Feb 8 07:57:47 2026 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 73E93C001DC for ; Sat, 29 Jul 2023 22:39:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229585AbjG2WjQ (ORCPT ); Sat, 29 Jul 2023 18:39:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229445AbjG2WjO (ORCPT ); Sat, 29 Jul 2023 18:39:14 -0400 X-Greylist: delayed 917 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Sat, 29 Jul 2023 15:39:12 PDT Received: from m126.mail.126.com (m126.mail.126.com [220.181.12.37]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 59FC62D67 for ; Sat, 29 Jul 2023 15:39:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=Rjt1v 462Ui9NyzNt3fQS7R0jI64RTz+z/nf5RjfQBSY=; b=Zt1IP8YAeKTkW1aC7SzaC xGh5SOPe5PSm7Ti5ylARHy1vFVRXICpvtoXPI18Iug9pVh5/in7Zv8DKnYcGO2n1 JUNaB45up8CcavM/3wSHYDk9knXcN+Yep0yBadTQkN0lfmzjUyIj2pTbsjGe1ZWH l/82bNY5EvMQ/7q4vqip1s= Received: from localhost.localdomain (unknown [222.244.204.172]) by zwqz-smtp-mta-g0-1 (Coremail) with SMTP id _____wDXDZYLkcVkPpaGBA--.36756S2; Sun, 30 Jul 2023 06:22:05 +0800 (CST) From: Bing Huang To: dietmar.eggemann@arm.com Cc: rostedt@goodmis.org, brauner@kernel.org, bristot@redhat.com, bsegall@google.com, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, vincent.guittot@linaro.org Subject: [PATCH] sched/topology: Covered all cpus of same node in asymmetric node setups Date: Sun, 30 Jul 2023 06:22:03 +0800 Message-Id: <20230729222203.5601-1-huangbing775@126.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wDXDZYLkcVkPpaGBA--.36756S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7XF4UAF17Cr1ktrykAF1fZwb_yoWfXFb_Jw 4rur1kWr1DZw18tr4fKFs3XryFqa1jgFn29r97ta47XryUtrn5Ar90yF95Zrs5GwnrJF9r Gw4Sq3Z0y3WkGjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUbJ73JUUUUU== X-Originating-IP: [222.244.204.172] X-CM-SenderInfo: xkxd0w5elqwlixv6ij2wof0z/1tbiJxG7r2G5Vb9oOQAAsB Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" in asymmetric node setups, if one cpu'sd spans is empty in some depth, others in same node do Signed-off-by: Bing Huang --- kernel/sched/topology.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 7cfcfe5d27b9..8c5372ad7694 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -1045,8 +1045,10 @@ build_overlap_sched_groups(struct sched_domain *sd, = int cpu) * Domains should always include the CPU they're built on, so * check that. */ - if (!cpumask_test_cpu(i, sched_domain_span(sibling))) + if (!cpumask_test_cpu(i, sched_domain_span(sibling))) { + cpumask_or(covered, covered, cpumask_of_node(cpu_to_node(i))); continue; + } =20 /* * Usually we build sched_group by sibling's child sched_domain --=20 2.25.1