Received: by 2002:a25:1506:0:0:0:0:0 with SMTP id 6csp680226ybv; Fri, 7 Feb 2020 06:37:57 -0800 (PST) X-Google-Smtp-Source: APXvYqzDGSTXccI9dKZo+WfSpjpg8fU6rSvidqBytbTuH2izhwuZ1xEXB+65+fD8J8lWxVQUA9rz X-Received: by 2002:aca:1b17:: with SMTP id b23mr2346899oib.95.1581086277001; Fri, 07 Feb 2020 06:37:57 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1581086276; cv=none; d=google.com; s=arc-20160816; b=HdyWvRCX2jAuqtSTZ8j+NPKRz4X7IEX00hAf4oI9kMszJSHlczDhDpwCxzs/ed5gPB 6twNlplhL7I/d2K1HAtdgBaW7THWSznZr5ZW075PpW9K3fnxPXyEsnrr2ArU1Bq1/7aW yU3PVnE2vb3uU0+yvjtldN4lkglmXhpX87F+QKKNR2iY7EbeLrTeFCZoPT8/H0lHPBWT PPmq4VjnMfkhwETs3vGbExkKFdqO/Efltf8Cd9pNlzCvEujiIopMjCQMJLdLkNvgqJ1E 4lpWJOii5zLU7LcJkcOiu7VYbMvnnFw3YbmN0pqeSWdmAWRwIl8yvsmIzVE+XcA/QJEr tOQg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date; bh=4qYUmzjl9CP0CR+I5EGEexq73dquntbyQsjZVqcjNno=; b=HmeQj67DJA+dxt7fCmxVcHTy54MMoX+xqj07D59SFz43sucYp+jw2Ir5cICMwJUF2c 1XwerqLJMlIQSjZBnREEUuREg47mFzfv4S1zxrN8rWXBi0TA6CDUxTSSFdB5spX5sTjW P1tsnN3HwEVAGP9PnkYEla8EcyeU6wTOc9PVBrmGVnHSxMVEuuDNrDuOQ7HAY3FoMoRm TgP0VngxVlcS/B0ERxqpj/vdeJkqbz6B/dtNuW8pQ4jWB29jdbQz/HJ2xb5e+aXs+sNL xdmEROUdbmIseBN22GGxoR3gjwnCSGoB1UPiLpH0A5pjI7YNdIjC4viNDB1HLaMzVs7a aCAw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u12si3876839oiv.13.2020.02.07.06.37.44; Fri, 07 Feb 2020 06:37:56 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727387AbgBGOgf (ORCPT + 99 others); Fri, 7 Feb 2020 09:36:35 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:43164 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726674AbgBGOgf (ORCPT ); Fri, 7 Feb 2020 09:36:35 -0500 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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.