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=-3.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 5C60AC43219 for ; Fri, 26 Apr 2019 18:00:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2E5F720656 for ; Fri, 26 Apr 2019 18:00:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="DXYVVDna" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726473AbfDZSAC (ORCPT ); Fri, 26 Apr 2019 14:00:02 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:44834 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726315AbfDZR7y (ORCPT ); Fri, 26 Apr 2019 13:59:54 -0400 Received: from pps.filterd (m0044012.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x3QHjkQ3007872 for ; Fri, 26 Apr 2019 10:59:53 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=facebook; bh=I69yex02ZDfSNGZEwjXGsGyUJRCnW8gVyFqR8Q8tfUU=; b=DXYVVDnaj6nQj536siLMon43I6/AKsE16SGOuP0BGyR65THbS6q1r7k5p0U6a8URfBu5 jNCoslGyZxHWSUbNZFc0bLRuZhzSm8XZQi8uvNRVa6ES4baplpiDiXn5tEeUyUOo575e nWhFCU+UHBJwg/C7okCo3HGcJzJBvvuMHTo= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 2s3uwmj13b-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 26 Apr 2019 10:59:53 -0700 Received: from mx-out.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Fri, 26 Apr 2019 10:59:50 -0700 Received: by devvm2643.prn2.facebook.com (Postfix, from userid 111017) id 5E497115F37BC; Fri, 26 Apr 2019 10:59:48 -0700 (PDT) Smtp-Origin-Hostprefix: devvm From: Roman Gushchin Smtp-Origin-Hostname: devvm2643.prn2.facebook.com To: Tejun Heo CC: Oleg Nesterov , , , , Roman Gushchin Smtp-Origin-Cluster: prn2c23 Subject: [PATCH 0/2] cgroup v2 freezer follow-up patches Date: Fri, 26 Apr 2019 10:59:43 -0700 Message-ID: <20190426175945.2559865-1-guro@fb.com> X-Mailer: git-send-email 2.17.1 X-FB-Internal: Safe MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-04-26_12:,, signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=687 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1904260122 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Tejun! Please, pull these two follow-up patches for the cgroup v2 freezer. These are a fix for a spurious state transition, which could happen due to a race condition, and a cleanup of some dead code. Both patches were suggested by Oleg Nesterov. Thank you! Roman Gushchin (2): cgroup: prevent spurious transition into non-frozen state cgroup: get rid of cgroup_freezer_frozen_exit() include/linux/cgroup.h | 2 +- kernel/cgroup/cgroup.c | 5 ++--- kernel/cgroup/freezer.c | 26 +++++--------------------- kernel/signal.c | 2 +- 4 files changed, 9 insertions(+), 26 deletions(-) -- 2.20.1