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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, 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 5B3D2C433DF for ; Wed, 12 Aug 2020 12:57:14 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 248C7204FD for ; Wed, 12 Aug 2020 12:57:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="hafMKaQI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 248C7204FD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=N/xPsXsw87HnsSBbv+jH88z+ANDvgC7o0PVqHbKG7bg=; b=hafMKaQI19LvQ5MocJQn3IXWM LAkgvxQTQJkwnvdbQRy9por2Q1IuC8JbyTwKo4eoZHYz3cbfSs9AwHg/U2gLaWnOn14hrBqnLGiL6 3/suQII3ddXUzZAM/4k98xcFDIM3DiFAqgqW2dTk4Qgw+J0rDYDjYiBRURv1o+5CuT0i0o39DQYRw wtATNnsr+1XyyTPQVeGP3q0RzzA2UnKYy1wFbxzdDczGHMT77Lf1C8TxzSMSPUiA574DiqXHbW2FA rDkAX4V7PnEwXLifHgxsj3zgoe9SdB5FOex+gJGV/yU0hrhB00YPlD3knJ5XCmJa2iMUgtboV12Kb 4gav08O0Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5qHs-000504-9q; Wed, 12 Aug 2020 12:55:24 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5qG9-0003rw-RV for linux-arm-kernel@lists.infradead.org; Wed, 12 Aug 2020 12:53:39 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A4C7831B; Wed, 12 Aug 2020 05:53:37 -0700 (PDT) Received: from e113632-lin.cambridge.arm.com (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 658333F70D; Wed, 12 Aug 2020 05:53:36 -0700 (PDT) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 17/17] sched/topology: Expand use of SD_DEGENERATE_GROUPS_MASK to flags not needing groups Date: Wed, 12 Aug 2020 13:53:00 +0100 Message-Id: <20200812125300.11889-18-valentin.schneider@arm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200812125300.11889-1-valentin.schneider@arm.com> References: <20200812125300.11889-1-valentin.schneider@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200812_085338_079469_B682B093 X-CRM114-Status: GOOD ( 14.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vincent.guittot@linaro.org, Quentin Perret , peterz@infradead.org, morten.rasmussen@arm.com, mingo@kernel.org, dietmar.eggemann@arm.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org All SD flags requiring 2+ sched_group to have any effect are now decorated with the SDF_NEEDS_GROUPS metaflag. This means we can now use the bitwise negation of SD_DEGENERATE_MASK in sd_degenerate() instead of explicitly using SD_WAKE_AFFINE (IOW the only flag without SDF_NEEDS_GROUPS). >From now on, any flag without SDF_NEEDS_GROUPS will be correctly accounted as a flag not requiring 2+ sched_groups. Signed-off-by: Valentin Schneider --- kernel/sched/topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 8064f495641b..3bb145ef5abd 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -165,7 +165,7 @@ static int sd_degenerate(struct sched_domain *sd) return 0; /* Following flags don't use groups */ - if (sd->flags & (SD_WAKE_AFFINE)) + if (sd->flags & ~SD_DEGENERATE_GROUPS_MASK) return 0; return 1; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel