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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 BE873C2D0C2 for ; Thu, 2 Jan 2020 18:01:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5FA0620866 for ; Thu, 2 Jan 2020 18:01:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5FA0620866 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mit.edu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A2FCB8E0005; Thu, 2 Jan 2020 13:01:24 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9E1A28E0003; Thu, 2 Jan 2020 13:01:24 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8F62A8E0005; Thu, 2 Jan 2020 13:01:24 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0223.hostedemail.com [216.40.44.223]) by kanga.kvack.org (Postfix) with ESMTP id 7C49D8E0003 for ; Thu, 2 Jan 2020 13:01:24 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 3241F4995E3 for ; Thu, 2 Jan 2020 18:01:24 +0000 (UTC) X-FDA: 76333461288.24.bomb48_c2ad921fe413 X-HE-Tag: bomb48_c2ad921fe413 X-Filterd-Recvd-Size: 2563 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by imf24.hostedemail.com (Postfix) with ESMTP for ; Thu, 2 Jan 2020 18:01:23 +0000 (UTC) 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> 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 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