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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 78164C2D0F2 for ; Tue, 31 Mar 2020 15:49:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3A62620BED for ; Tue, 31 Mar 2020 15:49:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="nxUYO+tX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3A62620BED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B65576B0032; Tue, 31 Mar 2020 11:49:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B3B2D6B0037; Tue, 31 Mar 2020 11:49:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A295F6B006C; Tue, 31 Mar 2020 11:49:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0153.hostedemail.com [216.40.44.153]) by kanga.kvack.org (Postfix) with ESMTP id 86B846B0032 for ; Tue, 31 Mar 2020 11:49:28 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 4A6A34853 for ; Tue, 31 Mar 2020 15:49:28 +0000 (UTC) X-FDA: 76656092016.29.bell44_6fb56c970c733 X-HE-Tag: bell44_6fb56c970c733 X-Filterd-Recvd-Size: 3752 Received: from hqnvemgate24.nvidia.com (hqnvemgate24.nvidia.com [216.228.121.143]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Tue, 31 Mar 2020 15:49:27 +0000 (UTC) Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 31 Mar 2020 08:47:49 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 31 Mar 2020 08:49:26 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 31 Mar 2020 08:49:26 -0700 Received: from [10.2.57.122] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 31 Mar 2020 15:49:25 +0000 Subject: Re: [PATCH 3/3] kernel/hung_task convert hung_task_panic boot parameter to sysctl To: Vlastimil Babka , Kees Cook CC: Luis Chamberlain , Iurii Zaikin , , , , Ivan Teterevkov , Michal Hocko , David Rientjes , Matthew Wilcox , "Eric W . Biederman" , "Guilherme G . Piccoli" , Alexey Dobriyan , Thomas Gleixner , Greg Kroah-Hartman , Christian Brauner References: <20200330115535.3215-1-vbabka@suse.cz> <20200330115535.3215-4-vbabka@suse.cz> <202003301042.97F3B00@keescook> <13ae67d8-4b31-db20-7ba4-1602906a291e@nvidia.com> <37b42835-6c4a-674b-9731-ecc9d0ff1703@suse.cz> From: John Hubbard X-Nvconfidentiality: public Message-ID: Date: Tue, 31 Mar 2020 08:49:25 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <37b42835-6c4a-674b-9731-ecc9d0ff1703@suse.cz> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1585669669; bh=cqXhut2aGqGvWiYl/OLkzlunQkw2ez3E0c3b4HvZBpg=; h=X-PGP-Universal:Subject:To:CC:References:From:X-Nvconfidentiality: Message-ID:Date:User-Agent:MIME-Version:In-Reply-To: X-Originating-IP:X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=nxUYO+tXSTN1iaxCgy/pHzoBKnUhJElZGaP1iZbqm02LPMOaKtkuA0nY/Cnc0BRvt FCQpb7FmR8p5KvUEUzNUz0IQgrSXm8ymdg2GgS2XtmNeFUIGZAhH8kxzuc0lh2vUhj z7SuI0idXXe+3Et5tAzVvtK5FcH+P8cZmCdRrk63ChxCdQLLDfeuW/vYyrxeKBCQQN FbTQuho+tWgBDm7zXAtlHrk0bq06nJZC+B4o15reMLu1IHQWI6+DB7lhjx3Fe7CTXY 8gdNxk9zFSdaWNNrxj13+0w2vHLGKYFKUsp09EVO67HXFxkPRy0RxndwWriyeW9Xv+ wWeTxV78RkADQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 3/31/20 12:27 AM, Vlastimil Babka wrote: ... > Patches 2+3 are only about handling the legacy boot params that have a sysctl > counterpart. > OK, I misread what those were for. >> In fact, the sysctl_aliases[] is (or could be) effectively the whitelist that Luis Chamberlain >> was requesting in another thread. A whitelist makes good sense, for the reasons Luis listed. >> As such, keeping it limited to items that we want, seems like the way to go, IMHO. > > See my reply there once I send it :) > Saw that, and it all sounds good now. thanks, -- John Hubbard NVIDIA