Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AF49C636D3 for ; Mon, 6 Feb 2023 04:44:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229627AbjBFEou (ORCPT ); Sun, 5 Feb 2023 23:44:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229526AbjBFEon (ORCPT ); Sun, 5 Feb 2023 23:44:43 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED16615543; Sun, 5 Feb 2023 20:44:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=vnoxxnFupsctnz6PYmQvdvAVDmQ6Sog6ZUyHJ5kggYs=; b=c77iJQ/wF72o+8X2qH2VVeUYy/ pMn9C95oNhdcjSzx3+dRwU3ungMEHHYItlf7JDThl7+h0LMGkQAyPZVrJrwZBwAbOu3MY8cnTUw15 eWlKKCmMIdmZk3Z7hrX8gUFJ5DPQBQCwcBPPZd9Mzhk++k0pN5FFlxIUXAGiozfQgI0W/mr7+ujpB cdKQNUuyC4lQPyz4q8q4WZOqcO9hh7mvgpdg/Ks2+tbwXXXOOkmnA+YO1S1RXSksYjoVpCjG3KL9q PjNTY0XSxU2X2Da5KRjpSH+WIscWKX2E3L2K08mBeAmZ9q/qG80XJUpr2wBfKB+z92CSbvBS7vnB6 4aseEvkg==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pOtMX-00GTNl-N0; Mon, 06 Feb 2023 04:44:17 +0000 Date: Mon, 6 Feb 2023 04:44:17 +0000 From: Matthew Wilcox To: Hillf Danton Cc: Alan Stern , Tetsuo Handa , Greg Kroah-Hartman , "Rafael J. Wysocki" , linux-mm@kvack.org, LKML , USB list , Linus Torvalds Subject: Re: Converting dev->mutex into dev->spinlock ? Message-ID: References: <28a82f50-39d5-a45f-7c7a-57a66cec0741@I-love.SAKURA.ne.jp> <917e1e3b-094f-e594-c1a2-8b97fb5195fd@I-love.SAKURA.ne.jp> <20230206025629.1786-1-hdanton@sina.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230206025629.1786-1-hdanton@sina.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 06, 2023 at 10:56:29AM +0800, Hillf Danton wrote: > On Sun, 5 Feb 2023 11:46:06 -0500 Alan Stern > > > > And by the way, by disabling lockdep validation I am declaraing that > > enabling it would cause an overwhelming number of false positives, > > Could you share 5 false positives you see upstream to help understand how > it is useless? I've asked you before to stop cc'ing linux-mm on things which aren't about memory management. Now I'm asking you publically.