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 DAD54C433EF for ; Mon, 11 Jul 2022 21:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232084AbiGKVQc (ORCPT ); Mon, 11 Jul 2022 17:16:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232027AbiGKVQ1 (ORCPT ); Mon, 11 Jul 2022 17:16:27 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 777F3823B4 for ; Mon, 11 Jul 2022 14:16:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1657574185; h=from:from: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; bh=HQK/MBlEjX74s0apUftzaPPRJK2H5VXdkugL64NaRtk=; b=aDygW9n92pS3FlOmDMx+XUJcTCfxPYcWKWLk2Y2LP+F7nDi8atNkYlTW/M8HYzFVY+CK2P 7zmRx6/XL/nz6D4wJBP7HhE6EyyFqC+i6ku7iioHgIkUgJBdrb1FuDj8epswO/VHMRwzmR DBgcp3wCB5RCcc5bjJyRH3vbpP7Piz8= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-127-pYHXJ_uWM-ybrzYxwdO3gg-1; Mon, 11 Jul 2022 17:16:20 -0400 X-MC-Unique: pYHXJ_uWM-ybrzYxwdO3gg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 76A961018AA4; Mon, 11 Jul 2022 21:16:20 +0000 (UTC) Received: from pauld.bos.com (dhcp-17-237.bos.redhat.com [10.18.17.237]) by smtp.corp.redhat.com (Postfix) with ESMTP id 480132166B26; Mon, 11 Jul 2022 21:16:20 +0000 (UTC) From: Phil Auld To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Peter Zijlstra , Valentin Schneider Subject: [PATCH v3 0/2] cpuhp: fix some st->target issues Date: Mon, 11 Jul 2022 17:16:17 -0400 Message-Id: <20220711211619.112854-1-pauld@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Several small fixes that clean up some cpuhp inconsistencies. The first prevents target_store() from calling cpu_down() when target == state which prevents the cpu being incorrectly marked as dying. The second just makes the boot cpu have a valid cpuhp target rather than 0 (CPU_OFFLINE) while being in state CPU_ONLINE. A further issue which these two patches don't address is that the cpuX/online file looks at the device->offline state and can thus get out of sync with the actual cpuhp state if the cpuhp target is used to change state. v3: Added code to make sure st->target == target in the nop case. Phil Auld (2): cpuhp: make target_store() a nop when target == state cpuhp: Set cpuhp target for boot cpu kernel/cpu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.31.1