From patchwork Fri Feb 21 07:40:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 230778 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 AAEFAC35642 for ; Fri, 21 Feb 2020 08:32:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 78E2720679 for ; Fri, 21 Feb 2020 08:32:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582273959; bh=xFhBmw0OsCRZLZGUfObY3W1rt2hlf52F5D9bNt+4aaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Co33Wh43kDnfxx9wwp10z80fAhJUVbRs8N6qiXFlp2paTMXaCizSdVLH3sqDC0m3t tTra4+FKAX4xGr62z46L4QABVPb9fXR6wsOZ9xoayR0UHLI8sLaf20fYmR2AnbGVVY DJRyJeSG6RwqXU9vn/PTfaj6DqF7NbzG6Ae16x4I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732785AbgBUIMG (ORCPT ); Fri, 21 Feb 2020 03:12:06 -0500 Received: from mail.kernel.org ([198.145.29.99]:47776 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732781AbgBUIMF (ORCPT ); Fri, 21 Feb 2020 03:12:05 -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 B5B8D24650; Fri, 21 Feb 2020 08:12:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582272725; bh=xFhBmw0OsCRZLZGUfObY3W1rt2hlf52F5D9bNt+4aaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WZ8Vy0jPSLxQB25pYiAgwJd7NrUyGln1sr3z//iBmNHoT1NwN7ZUHylm6+slY9UC2 dQPaEhtopqRGQg2xvFiGejYDkvmLYg601tA612H0qq2l90YCrRR6HclCdGvOA9gJGo rrmEajlxABHG4lk9bxuSM6O9pE2rkdy1rGM6x7l4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Li Guanglei , "Peter Zijlstra (Intel)" , Qais Yousef , Sasha Levin Subject: [PATCH 5.4 250/344] sched/core: Fix size of rq::uclamp initialization Date: Fri, 21 Feb 2020 08:40:49 +0100 Message-Id: <20200221072412.189178126@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200221072349.335551332@linuxfoundation.org> References: <20200221072349.335551332@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Li Guanglei [ Upstream commit dcd6dffb0a75741471297724640733fa4e958d72 ] rq::uclamp is an array of struct uclamp_rq, make sure we clear the whole thing. Fixes: 69842cba9ace ("sched/uclamp: Add CPU's clamp buckets refcountinga") Signed-off-by: Li Guanglei Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Qais Yousef Link: https://lkml.kernel.org/r/1577259844-12677-1-git-send-email-guangleix.li@gmail.com Signed-off-by: Sasha Levin --- kernel/sched/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index dfaefb175ba05..e6c65725b7ce0 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1252,7 +1252,8 @@ static void __init init_uclamp(void) mutex_init(&uclamp_mutex); for_each_possible_cpu(cpu) { - memset(&cpu_rq(cpu)->uclamp, 0, sizeof(struct uclamp_rq)); + memset(&cpu_rq(cpu)->uclamp, 0, + sizeof(struct uclamp_rq)*UCLAMP_CNT); cpu_rq(cpu)->uclamp_flags = 0; }