Received: by 2002:a05:6358:45e:b0:b5:b6eb:e1f9 with SMTP id 30csp1100980rwe; Thu, 25 Aug 2022 15:44:12 -0700 (PDT) X-Google-Smtp-Source: AA6agR70yad0cKlcz5QmVzaTyGh7+SgMVfyAntT40f96kkCPcZKPksEosxp9QZ2TY+YfQwAi2iN8 X-Received: by 2002:a05:6a00:80c:b0:536:a95a:f581 with SMTP id m12-20020a056a00080c00b00536a95af581mr1126912pfk.66.1661467452606; Thu, 25 Aug 2022 15:44:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1661467452; cv=none; d=google.com; s=arc-20160816; b=oL6R9OxiyFcKMtZU8AQYAyArFNq2VTIRs3l8XuVsqF4oFKsxZ9WZrOvLgzjeCRWpLU dqRZAI9VZVh2pl6/fRO9pwdIRBNetTLQXb8eTc+CgRiUfPBNE6IisWq6qmFelokjcZAc gdtulLmjIaO39bRJxGm0VrDyZ0UwzZ3AJ0WJKnb64YpzsT2WWqaSFXr4dEvfb2NklJ3D 49aP4wiw6hnlj922R8sDpdjZ/3n0BFhx9bA+YvZZEY+Ujh3A81fTOVkKI5belMiRvIsa dNi5gnbqllq5jWqv/RaRpq6ZuFxD/zpxCm9jYs48xqcYHaYBsqLCG1uJF+RAGGO01cSl M1mA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=IuiJZCl8wFmtFotjT168+vSrYl8HtzSuyjK+lsHlc/c=; b=zbvgKfzKxigH+bbTXUN3qSoK58bmptiCE2Ma483QqvyXw1O0iACF6/iQKO9rKs8nLs It6DIKEHXVl8MRnR+FoWXD9R9yM7TYU7J+FYWaYvqP7NQEXHaOtTRA6wcTxZDImAEmlH KXi3pL23AYesrsA7+kDtrULxg8iGhTuEeXFpj5ZKiX9k+N5drI3A9aLXxUj/arQgN/IZ 93/SuGBs/kZ2vt4GDysYL55mI+8vXLtVXddYZHvw5h0kCq8PuapOelYxEDpnjwoVtnJl kfehREwTgPHjDtZiO4hxLwpBau4bnmKDBNZ0jkua6kGkUg4D5ykmfVE7boqP8XRNjN0l P/0A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id j190-20020a638bc7000000b00422b8b2d02csi290257pge.282.2022.08.25.15.44.01; Thu, 25 Aug 2022 15:44:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244451AbiHYW2g (ORCPT + 99 others); Thu, 25 Aug 2022 18:28:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244443AbiHYW2c (ORCPT ); Thu, 25 Aug 2022 18:28:32 -0400 Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 71EF4C59FF; Thu, 25 Aug 2022 15:28:31 -0700 (PDT) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 27PMDYv8030657; Thu, 25 Aug 2022 17:13:34 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id 27PMDWHO030656; Thu, 25 Aug 2022 17:13:32 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Thu, 25 Aug 2022 17:13:32 -0500 From: Segher Boessenkool To: Linus Torvalds Cc: Alexander Potapenko , Matthew Wilcox , Thomas Gleixner , Alexander Viro , Alexei Starovoitov , Andrew Morton , Andrey Konovalov , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Christoph Hellwig , Christoph Lameter , David Rientjes , Dmitry Vyukov , Eric Dumazet , Greg Kroah-Hartman , Herbert Xu , Ilya Leoshkevich , Ingo Molnar , Jens Axboe , Joonsoo Kim , Kees Cook , Marco Elver , Mark Rutland , "Michael S. Tsirkin" , Pekka Enberg , Peter Zijlstra , Petr Mladek , Steven Rostedt , Vasily Gorbik , Vegard Nossum , Vlastimil Babka , kasan-dev , Linux Memory Management List , Linux-Arch , LKML Subject: Re: [PATCH v4 44/45] mm: fs: initialize fsdata passed to write_begin/write_end interface Message-ID: <20220825221332.GJ25951@gate.crashing.org> References: <20220701142310.2188015-1-glider@google.com> <20220701142310.2188015-45-glider@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS, SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 25, 2022 at 09:33:18AM -0700, Linus Torvalds wrote: > So you'd most certainly want to know that all incoming arguments are > actually valid, because otherwise you can't do even some really simple > and obvious optimziations. The C11 change was via DR 338, see for more info. Segher