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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 A5818C43333 for ; Fri, 8 Jan 2021 09:23:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7775E23383 for ; Fri, 8 Jan 2021 09:23:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728004AbhAHJWt (ORCPT ); Fri, 8 Jan 2021 04:22:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35438 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727073AbhAHJWs (ORCPT ); Fri, 8 Jan 2021 04:22:48 -0500 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54B2FC0612F5; Fri, 8 Jan 2021 01:22:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.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=hzsPaWcvnTcN6zjmKvoePQm62laeQH1oHkAlW/Wfqj8=; b=iiY8GRpezMWdVt6/QNtReqbCHO dzUSJq1qr5AIlUa6NQeZNRww61pnEP9vhFjfv0k43vwv6jLfM8H6/c5zVnNcz5YiNM/MIlnrchYtB hO/MkC7lmQXd6sdMOGAz0Zm74pQOJtHP6VZ4d386yduo3w7ng+NroqiGFREKzZfh9Riye3J13sR44 7QnmPfl3gGQRk3iSVrb1L1AEE/X0NSNY2S3RdBhxpicqs3F5JeSwnvgUfmVH+IWpEM/1Dy8ZWJcfZ mMxhYI5/eeOHmilpdfAKvjm4S1xTQEgnIe9f8BxzIk2B/t/mbED7W5GK/S5icRTFFAmQGdIzoVTkL GlhzwQ3Q==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kxny1-00024h-ES; Fri, 08 Jan 2021 09:21:57 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 653B33003D8; Fri, 8 Jan 2021 10:21:54 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 308832B877B8A; Fri, 8 Jan 2021 10:21:54 +0100 (CET) Date: Fri, 8 Jan 2021 10:21:54 +0100 From: Peter Zijlstra To: Arnd Bergmann Cc: Russell King - ARM Linux admin , Will Deacon , linux-toolchains@vger.kernel.org, Mark Rutland , Theodore Ts'o , "linux-kernel@vger.kernel.org" , Andreas Dilger , Ext4 Developers List , Linux ARM , Linus Torvalds Subject: Re: Aarch64 EXT4FS inode checksum failures - seems to be weak memory ordering issues Message-ID: References: <20210105154726.GD1551@shell.armlinux.org.uk> <20210106115359.GB26994@C02TD0UTHF1T.local> <20210106135253.GJ1551@shell.armlinux.org.uk> <20210106172033.GA2165@willie-the-truck> <20210106223223.GM1551@shell.armlinux.org.uk> <20210107111841.GN1551@shell.armlinux.org.uk> <20210107124506.GO1551@shell.armlinux.org.uk> <20210107133747.GP1551@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Thu, Jan 07, 2021 at 10:20:38PM +0100, Arnd Bergmann wrote: > On Thu, Jan 7, 2021 at 2:37 PM Russell King - ARM Linux admin > > So, do we raise the minimum gcc version for the kernel as a whole to 5.1 > > or just for aarch64? > > I'd personally love to see gcc-5 as the global minimum version, as that > would let us finally use --std=gnu11 features instead of gnu89. [There are > a couple of useful features that are incompatible with gnu89, and > gnu99/gnu11 support in gcc didn't like the kernel sources] +1 for raising the tree-wide minimum (again!). We actually have a bunch of work-arounds for 4.9 bugs we can get rid of as well.