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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 1B797C2D0CD for ; Mon, 16 Dec 2019 18:18:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E990B207FF for ; Mon, 16 Dec 2019 18:18:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576520324; bh=Rj1qlk7stY5x9rTV5wv9WAaM/o0Wnz8SWBnZ/TGwgsg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=VDOOFY773iiyYFMdxnNNk/BZnPuBgHZBgIy7ndH89jf2ODmEpnEZNnY2cj2Ey+pwJ cjy7MKS4mg/TZzOGmJAs0dxNHiuSLpiuc1cQFFpt2tzKjWI9BWa9dtyBvMIuo0Kiuz fDtRDWmCOZELjpTxZKq79k2baBnF0SBlXZCmdnEg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731548AbfLPSSn (ORCPT ); Mon, 16 Dec 2019 13:18:43 -0500 Received: from mail.kernel.org ([198.145.29.99]:44602 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731679AbfLPSSi (ORCPT ); Mon, 16 Dec 2019 13:18:38 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5ECE620CC7; Mon, 16 Dec 2019 18:18:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576520317; bh=Rj1qlk7stY5x9rTV5wv9WAaM/o0Wnz8SWBnZ/TGwgsg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NEKIU6iuEiO/FDk9DK5FenF9qh+qEMNpApIUX2qdYQjWcF0JCUZfNiVHE3wWsnkHt DcyDD8wdbs6bLFTXRIFsxS8VzJRmd0j80+wD/emkGjJfak+0GpW7KkdF4okYdQY444 wgoppvYUsefXepbKVQMDLs2fuK72BecQx5sObu7k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Rafael J. Wysocki" Subject: [PATCH 5.4 105/177] cpuidle: teo: Ignore disabled idle states that are too deep Date: Mon, 16 Dec 2019 18:49:21 +0100 Message-Id: <20191216174841.455676852@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191216174811.158424118@linuxfoundation.org> References: <20191216174811.158424118@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rafael J. Wysocki commit 069ce2ef1a6dd84cbd4d897b333e30f825e021f0 upstream. Prevent disabled CPU idle state with target residencies beyond the anticipated idle duration from being taken into account by the TEO governor. Fixes: b26bf6ab716f ("cpuidle: New timer events oriented governor for tickless systems") Signed-off-by: Rafael J. Wysocki Cc: 5.1+ # 5.1+ Signed-off-by: Greg Kroah-Hartman --- drivers/cpuidle/governors/teo.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/cpuidle/governors/teo.c +++ b/drivers/cpuidle/governors/teo.c @@ -258,6 +258,13 @@ static int teo_select(struct cpuidle_dri if (s->disabled || su->disable) { /* + * Ignore disabled states with target residencies beyond + * the anticipated idle duration. + */ + if (s->target_residency > duration_us) + continue; + + /* * If the "early hits" metric of a disabled state is * greater than the current maximum, it should be taken * into account, because it would be a mistake to select