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=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 7E0E6C2BC61 for ; Tue, 30 Oct 2018 14:45:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 444872075D for ; Tue, 30 Oct 2018 14:45:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VyTfcAQF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 444872075D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727029AbeJ3Xjd (ORCPT ); Tue, 30 Oct 2018 19:39:33 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:45544 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726336AbeJ3Xjd (ORCPT ); Tue, 30 Oct 2018 19:39:33 -0400 Received: by mail-pf1-f195.google.com with SMTP id v5-v6so1044452pfm.12 for ; Tue, 30 Oct 2018 07:45:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=pjgxNZM2WE2d3ONPl/GeCY4/NIOvaMxXAvrJVd5+Azk=; b=VyTfcAQFCkWEDRFn7l+mv4oQuBveV6lGiicpiPrF8IeCJw+QimVLTyPTEyiggibU3t 4qUXqGqc39ypFtbUZNy+0H+yTEkEM0I8tS909IlcK4UcLdA7u4MRDgdtZIoV91x3nUA9 l8imL2j3CIYQ18Qcfvaxu2/unCDtXQgAfAd36EpP2caoWY2Cffos4RydRYe8LlhgZeYp bCzIE8PkDhOlo0tq7CoECQbZdQOJ655KlhCNL9Zn9jjV7F/RIt//L7+13M+IDLG3DKmh BcBeSDQ1slJow61BXnzNlBNqf8DyJsRXZXlXIjhoBNASDC9Ez9CognvxFCG9Ro/xgqTZ Cdeg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=pjgxNZM2WE2d3ONPl/GeCY4/NIOvaMxXAvrJVd5+Azk=; b=JjZUFjIPjYig6iUw8snxbCy20X3CutRsqCGeTyy+acO+sRkIUIxc/B6172/CbuOwZh kGOMuantEIAuOfAhV9fhMPohQMlE0sBIwWNuHrvFWevGs49FOZv5P8htDjdkcFnMQDzC Wa3DtrDx+o5dIrC9dEOg5dLJIwyn/ztxLeh4TANFz5S+vc/eONQc/+4OsYiogKPxDs2p iGJDvHq/wlvod2C3FO0KUWhTsNjAWselk0MheN+byNln1qowXblIyIc6Sp5AsGMhqGxd mICesPJE+Bg1Uybu+WnbklHOwFf4j+Jkf69ttusB4xZ3X3hIHk7St24uf6GiBIFYL2fg 37lg== X-Gm-Message-State: AGRZ1gJQy3iCBPnm4SPn0voq8UWi1IHzsvaskXu9TQXj5EVSYnIL4U73 frWcPsvQ0n7PDPj+WY+arpk= X-Google-Smtp-Source: AJdET5f2a96Ux3PvntGSJbeLQn3D9bEWe7a2NlAwgday+bn97CazEZWszYVuetEB8Rm82BWQrICnUg== X-Received: by 2002:a63:1157:: with SMTP id 23mr18446603pgr.245.1540910747742; Tue, 30 Oct 2018 07:45:47 -0700 (PDT) Received: from localhost.localdomain ([104.238.150.158]) by smtp.gmail.com with ESMTPSA id q2-v6sm26055490pgk.4.2018.10.30.07.45.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Oct 2018 07:45:46 -0700 (PDT) From: Muchun Song To: mingo@kernel.org, peterz@infradead.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH] sched/rt: Remove unnecessary CONFIG_RT_GROUP_SCHED in rt_se_prio() Date: Tue, 30 Oct 2018 22:45:30 +0800 Message-Id: <20181030144530.89995-1-smuchun@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When CONFIG_RT_GROUP_SCHED is not configured, group_rt_rq() will return NULL. With this patch applied, we also can get the same result. Because the compiler will help us optimize the code. So, we can remove unnecessary CONFIG_RT_GROUP_SCHED in rt_se_prio(). Signed-off-by: Muchun Song --- kernel/sched/rt.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index a21ea6021929..47b4800761db 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -894,12 +894,10 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun) static inline int rt_se_prio(struct sched_rt_entity *rt_se) { -#ifdef CONFIG_RT_GROUP_SCHED struct rt_rq *rt_rq = group_rt_rq(rt_se); if (rt_rq) return rt_rq->highest_prio.curr; -#endif return rt_task_of(rt_se)->prio; } -- 2.17.1