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=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 5933FC35250 for ; Fri, 7 Feb 2020 14:36:38 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2813D20720 for ; Fri, 7 Feb 2020 14:36:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2813D20720 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BA78F6B0003; Fri, 7 Feb 2020 09:36:37 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B58656B0005; Fri, 7 Feb 2020 09:36:37 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A94B16B0007; Fri, 7 Feb 2020 09:36:37 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0226.hostedemail.com [216.40.44.226]) by kanga.kvack.org (Postfix) with ESMTP id 927686B0003 for ; Fri, 7 Feb 2020 09:36:37 -0500 (EST) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 429B021F0 for ; Fri, 7 Feb 2020 14:36:37 +0000 (UTC) X-FDA: 76463582034.21.body51_1ca3adc7b4302 X-HE-Tag: body51_1ca3adc7b4302 X-Filterd-Recvd-Size: 2429 Received: from shards.monkeyblade.net (shards.monkeyblade.net [23.128.96.9]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Fri, 7 Feb 2020 14:36:36 +0000 (UTC) Received: from localhost (unknown [IPv6:2001:982:756:1:57a7:3bfd:5e85:defb]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id AD9F515AD7E0D; Fri, 7 Feb 2020 06:36:31 -0800 (PST) Date: Fri, 07 Feb 2020 15:36:30 +0100 (CET) Message-Id: <20200207.153630.1432371073271757175.davem@davemloft.net> To: sergey.dyasli@citrix.com Cc: xen-devel@lists.xen.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, aryabinin@virtuozzo.com, glider@google.com, dvyukov@google.com, boris.ostrovsky@oracle.com, jgross@suse.com, sstabellini@kernel.org, george.dunlap@citrix.com, ross.lagerwall@citrix.com, akpm@linux-foundation.org, netdev@vger.kernel.org, wei.liu@kernel.org, paul@xen.org Subject: Re: [PATCH v3 4/4] xen/netback: fix grant copy across page boundary From: David Miller In-Reply-To: <20200207142652.670-5-sergey.dyasli@citrix.com> References: <20200207142652.670-1-sergey.dyasli@citrix.com> <20200207142652.670-5-sergey.dyasli@citrix.com> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 07 Feb 2020 06:36:34 -0800 (PST) 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: From: Sergey Dyasli Date: Fri, 7 Feb 2020 14:26:52 +0000 > From: Ross Lagerwall > > When KASAN (or SLUB_DEBUG) is turned on, there is a higher chance that > non-power-of-two allocations are not aligned to the next power of 2 of > the size. Therefore, handle grant copies that cross page boundaries. > > Signed-off-by: Ross Lagerwall > Signed-off-by: Sergey Dyasli > Acked-by: Paul Durrant This is part of a larger patch series to which netdev was not CC:'d Where is this patch targetted to be applied? Do you expect a networking ACK on this? Please do not submit patches in such an ambiguous manner like this in the future, thank you.