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=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 29E1BC432C3 for ; Tue, 3 Dec 2019 16:01:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F3E54206E4 for ; Tue, 3 Dec 2019 16:01:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575388883; bh=jkBUQrSgUgGuYi2/x35a9RIQ6ObfXrVeYYv/CvzsuXU=; h=From:To:Cc:Subject:Date:List-ID:From; b=AHDKaLYnBc48DKyXjEaxtjnwmxeblwHuKaBABAoQbILJgRNbQtcbyR7pVkLJwiOsy JRxdPgL/xyftNnewM78ThoCSKQsDD03cBXrjwowvZc1WvLCFIAQ+LpUITuhBw+AiIy OcFzRNQ7TaAvC8WZuZbVk4KiWfRI3MkCuZT2a8Vg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726480AbfLCQBV (ORCPT ); Tue, 3 Dec 2019 11:01:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:54022 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726098AbfLCQBV (ORCPT ); Tue, 3 Dec 2019 11:01:21 -0500 Received: from lenoir.home (lfbn-ncy-1-150-155.w83-194.abo.wanadoo.fr [83.194.232.155]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 021322068E; Tue, 3 Dec 2019 16:01:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575388880; bh=jkBUQrSgUgGuYi2/x35a9RIQ6ObfXrVeYYv/CvzsuXU=; h=From:To:Cc:Subject:Date:From; b=y7DFqDxbcjFqmQ0XKsnTaUo3pAot11Na+FXL9eM/vNox2nuaXCqJV8FgTQRlNVzhV W5l0TunIaIZwEkIurI97Ca4B14WkvKW0TGRDNpoyChXdBUuMSZEpygbuX3a/HN0UUL rwvXMBfeH+VUFdqq01kWVOmQIhGpjpkyzWD7lMKk= From: Frederic Weisbecker To: Ingo Molnar , Peter Zijlstra Cc: LKML , Frederic Weisbecker Subject: [PATCH 0/2] sched: Spare IPI on single task renice Date: Tue, 3 Dec 2019 17:01:04 +0100 Message-Id: <20191203160106.18806-1-frederic@kernel.org> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A couple of patches to avoid disturbing nohz_full CPUs when a single fair task get its priority changed. I should probably check other sched policies as well... Frederic Weisbecker (2): sched: Spare resched IPI when prio changes on a single fair task sched: Use fair:prio_changed() instead of ad-hoc implementation kernel/sched/core.c | 16 ++++++++-------- kernel/sched/fair.c | 2 ++ 2 files changed, 10 insertions(+), 8 deletions(-) -- 2.23.0