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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 60A15C433DB for ; Wed, 10 Feb 2021 01:16:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0950464E3F for ; Wed, 10 Feb 2021 01:16:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234830AbhBJBQv (ORCPT ); Tue, 9 Feb 2021 20:16:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234002AbhBIWl7 (ORCPT ); Tue, 9 Feb 2021 17:41:59 -0500 Received: from mail-qv1-xf2f.google.com (mail-qv1-xf2f.google.com [IPv6:2607:f8b0:4864:20::f2f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDC5EC061794 for ; Tue, 9 Feb 2021 13:19:48 -0800 (PST) Received: by mail-qv1-xf2f.google.com with SMTP id 2so9457048qvd.0 for ; Tue, 09 Feb 2021 13:19:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=E+GwgIRGKbJyN6BMx9osGrabexMLPqEhC8h9yJvwcPI=; b=qVg6eWt/p+mtaLHMJ3UMS3pa7cP8tRdSZltmlPVvywtYM1Xz2GgR7lvaILGqsvNc5q vYrdlEDpJ6LAExkiYJ+B2vgDJ4ic2ZFx3wDChTDEaZfGBOTtJtLCbFQKoE4/Vk9+CRMe /MncFu/kd8cMm7K8t7NNOuyjR2eP2G5CTovSmA03FmKDfH7k80wPNw51QigLDkuqVVoO 9Jsosv3nlBPAAyWAq3Pt67mVcQfjR5jY5YDPEDWGyqd4Kp1yax1q4OadysJ422FdpCbt WX/JTNoTftwxDefcRi52Porkf9IdP/D/O6sbzPHti4g2tYZ9YwaiO2XPK1xOKsZWKK6h TUWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=E+GwgIRGKbJyN6BMx9osGrabexMLPqEhC8h9yJvwcPI=; b=RjKGW9UUnI3tpPDzBeARoT21rQ+ayM2cvI9iCXU8hhoLdbbkpovENX6FEGrc4wQRN/ pgOT27jyHDQDdY2AuJ66N0f7nlUhDyFHT/KkL5SkTH2uimwnMfL2yUbP2QVkSzMU90lW FtVrtygc4QfpwTLfaTvZ1hkKQoB/Ubm2A3nRBekYAhy6eJXPM5H23ZYs9Izx2kXQHvMB EWgbTaK6gBJklO2RWD5EwxIhxV3ov23x43D8YOBa3GcUj7aQeU4YuXqxsexebIcMac1h g0fBM8WFGkQqKmRUwesBC2rTEh/J0Qot078jLH7CX2wG5RxFbxTWacsHQHL6iCjN789w 6fQw== X-Gm-Message-State: AOAM531O5AZB8ztWsqWNnPr9ocgIr/+MOrOteesB2fFWlr2igxDZap7z fMXBNjeCY4GlqTuV4L8E5wgh5w== X-Google-Smtp-Source: ABdhPJzC1y781rKFs2oJ/EMXGnR/H0Bxxy1Ep70Zk8iEdT2DuGjbTeRKP6O9dCSwmHzW9pi7dRURgA== X-Received: by 2002:a05:6214:1643:: with SMTP id f3mr122351qvw.4.1612905588033; Tue, 09 Feb 2021 13:19:48 -0800 (PST) Received: from localhost (70.44.39.90.res-cmts.bus.ptd.net. [70.44.39.90]) by smtp.gmail.com with ESMTPSA id 199sm20696467qkm.126.2021.02.09.13.19.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 13:19:47 -0800 (PST) Date: Tue, 9 Feb 2021 16:19:46 -0500 From: Johannes Weiner To: Florian Fainelli Cc: stable@vger.kernel.org, linux-kernel@vger.kernel.org, Jaegeuk Kim , Bradley Bolen , Vladimir Davydov , Michal Hocko , Andrew Morton , Linus Torvalds , Prakash Gupta , Michal Hocko , Vladimir Davydov , "open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)" , "open list:CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)" Subject: Re: [PATCH stable 4.9] mm: memcontrol: fix NULL pointer crash in test_clear_page_writeback() Message-ID: References: <20210209202616.2257512-1-f.fainelli@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210209202616.2257512-1-f.fainelli@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 09, 2021 at 12:26:15PM -0800, Florian Fainelli wrote: > From: Johannes Weiner > > commit 739f79fc9db1b38f96b5a5109b247a650fbebf6d upstream ... > This patch is present in a downstream Android tree: > > https://source.mcwhirter.io/craige/bluecross/commit/d4a742865c6b69ef931694745ef54965d7c9966c > > and I happened to have stumbled across the same problem too. > > Johannes can you review it for correctness with respect to the 4.9 > kernel? Thanks! Looks good to me.