Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp17684940ybl; Thu, 2 Jan 2020 10:03:03 -0800 (PST) X-Google-Smtp-Source: APXvYqxR0I8VjPFhrOYfv5G/DQf13qBJZJUp7gHvfPhpUEKldvMuAwptqYM/Gyl2eBby9Y9kZKYd X-Received: by 2002:a9d:798e:: with SMTP id h14mr90418758otm.257.1577988183642; Thu, 02 Jan 2020 10:03:03 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1577988183; cv=none; d=google.com; s=arc-20160816; b=cYMuFRVNtMUPih3U5oCQaoZEXz4ptQD2+adQPkXvKHQLMCtW9iX4GgEvT9bqUL/Nzx 4G/VFHMk0dYIX1z0q0PlXNg0yDO7p/OtgcGR7sBtkUdf9rPdsjKaHaSBy/JbFC9nNe+Y 9uqjb9Ff7NHDLXh8IxSLqIEZTgI3V1+Hk8YV9settFMNKMQGmKLymCii/v/T8HkqVPPo dz6NhOm4UrRCQ8Kz2c4itDapOjXvvKxxTsKN7GYHrNpGQtRIJwxsI87dTub1eOsR/QY5 LIyG4z8iEuYaQaumvyg/+92BOa/PyYtXSGlTqC1BTuj+jG4HU5JazY6xYlvKfjKemReI mqOw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=yVS93Y3okBRHC9EM24VYMFJRxggkYyTrQjRhD6iswL4=; b=mcNFl6GNJptg1EWIyvtOPiGbghBJSYDT6WHyX8Cfbcjch/3W7S7brnfwDiEFK9hHMX QxZnL35gG2MBt0LnjudAxAgG4iLTsnJEMJjBAO/2v3o+IkRa/+OGLNnMERD4bk+GESKL E78N65GmEG1LPB556Y9PtAsh35A/ezIVnkaWB9fUhlHTWjv38HuilwdshpDTzE+ACZx7 Lq7w75UUX34wcrLosAFKJtNi0g9cWl26mweaysj71DiUrGwKS5hIxSr/zZy6Y+3zkO4e zhNrculnha5UhSmJ3j+7nquo/MD/OccbciG+ik7JgM7dTqRTlS3+pE0S7zYeMM5Tmm03 jnhw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z16si22180028oti.143.2020.01.02.10.02.51; Thu, 02 Jan 2020 10:03:03 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728074AbgABSBw (ORCPT + 99 others); Thu, 2 Jan 2020 13:01:52 -0500 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:57836 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728001AbgABSBt (ORCPT ); Thu, 2 Jan 2020 13:01:49 -0500 Received: from callcc.thunk.org (guestnat-104-133-0-111.corp.google.com [104.133.0.111] (may be forged)) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 002I0Y6w020811 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 2 Jan 2020 13:00:35 -0500 Received: by callcc.thunk.org (Postfix, from userid 15806) id 3EE664200AF; Thu, 2 Jan 2020 13:00:34 -0500 (EST) Date: Thu, 2 Jan 2020 13:00:34 -0500 From: "Theodore Y. Ts'o" To: Qian Cai Cc: Sergey Senozhatsky , Andrew Morton , Linus Torvalds , Arnd Bergmann , gregkh@linuxfoundation.org, pmladek@suse.com, "Steven Rostedt (VMware)" , Catalin Marinas , Will Deacon , dan.j.williams@intel.com, Peter Zijlstra , longman@redhat.com, Thomas Gleixner , Linux-MM , linux-arm-kernel@lists.infradead.org, Linux Kernel Mailing List Subject: Re: [PATCH] char/random: silence a lockdep splat with printk() Message-ID: <20200102180034.GA197330@mit.edu> References: <20191205010055.GO93017@google.com> <4F9E9335-334B-4600-8BC3-4AF91510D113@lca.pw> <1CA39814-DE67-4112-8F97-D62B9F47FF9D@lca.pw> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1CA39814-DE67-4112-8F97-D62B9F47FF9D@lca.pw> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 02, 2020 at 10:42:51AM -0500, Qian Cai wrote: > > Not sure if Ted is still interested in maintaining this file as he had no feedback for more > than a month. The problem is that this will render the lockdep useless for a general > debugging tool as it will disable the lockdep early in the process. > > Could Andrew (since the free page shuffle will call get_random) or Linus pick this up > directly with the approval from one of the printk() maintainers above? Sorry, things have been busy with the Chistmas holidays and getting the ext4 tree ready for the merge window. I'll take a look at this in the next day or two. - Ted