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,URIBL_BLOCKED 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 23516C433E0 for ; Wed, 10 Feb 2021 16:45:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D14F664DF6 for ; Wed, 10 Feb 2021 16:45:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232944AbhBJQon (ORCPT ); Wed, 10 Feb 2021 11:44:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232990AbhBJQm1 (ORCPT ); Wed, 10 Feb 2021 11:42:27 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02CA0C06174A; Wed, 10 Feb 2021 08:41:46 -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=v9yRMlvHCXlBWJoLZkr6GmF3X21NdcNOdmmcwmQ1wz4=; b=ZOlYhvxCmn92QujUmMYgBIPZVP 5YxBTBFobbzdLHFwIbywWhaip4VxFsEGHF0391VEjMt88YoFxNGZb6WB1e/60S+AFzJ5Dspc1fC9b GW+BvuLwQMhhHN8spE3w3mzx2syXtq6Q6qvn6PFvS/5yNFAlYEBynuRYF9hnsrPR361M7LAPidXaP P5roLkekwQssjJ1dZ6D+AbruBWdDQA8uUQgeg7E2MjRRRDkW8P8Yel7GKRkSlA8GjBbYq+gPY3NQJ wAi+uYbXy22iC0cXqPPHuxKILei5ja+m4VfsA/c+sc+gbtIj3smmZywjjyl17uuXq3wBryTPXq/1J RGEcobmA==; Received: from hch by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1l9sYY-0096RT-83; Wed, 10 Feb 2021 16:41:34 +0000 Date: Wed, 10 Feb 2021 16:41:34 +0000 From: Christoph Hellwig To: Ira Weiny Cc: Christoph Hellwig , Andrew Morton , David Sterba , Matthew Wilcox , clm@fb.com, josef@toxicpanda.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH V2 4/8] mm/highmem: Add VM_BUG_ON() to mem*_page() calls Message-ID: <20210210164134.GA2169678@infradead.org> References: <20210210062221.3023586-1-ira.weiny@intel.com> <20210210062221.3023586-5-ira.weiny@intel.com> <20210210125502.GD2111784@infradead.org> <20210210162901.GB3014244@iweiny-DESK2.sc.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210210162901.GB3014244@iweiny-DESK2.sc.intel.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Wed, Feb 10, 2021 at 08:29:01AM -0800, Ira Weiny wrote: > On Wed, Feb 10, 2021 at 12:55:02PM +0000, Christoph Hellwig wrote: > > On Tue, Feb 09, 2021 at 10:22:17PM -0800, ira.weiny@intel.com wrote: > > > From: Ira Weiny > > > > > > Add VM_BUG_ON bounds checks to ensure the newly lifted and created page > > > memory operations do not result in corrupted data in neighbor pages and > > > to make them consistent with zero_user().[1][2] > > > > s/VM_BUG_ON/BUG_ON/g ? > > Andrew wanted VM_BUG_ON.[1] I don't care either way, but the patch uses BUG_ON, so the description should match.