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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12D71C3DA7A for ; Fri, 6 Jan 2023 13:36:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233857AbjAFNgY (ORCPT ); Fri, 6 Jan 2023 08:36:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37258 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229623AbjAFNgT (ORCPT ); Fri, 6 Jan 2023 08:36:19 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9707E4567C for ; Fri, 6 Jan 2023 05:35:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673012136; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=LIoBt2cIV9yO6fK3uHUSYIcjRX0xwLFEsr7h2iHNS+A=; b=KKtp6ciJErEPDIySFLsKnMZknirn0y1ZNUW75vadqzi5c3HBpdqeigNp8eNmCSieiTmgNb xxvw9TuxbkKyOwR3PLQzxVJsBnxGqidSkaGqUj9HPe2G15BDaw/K8IrmhhHuKAW0nV3I66 0IrtqSYkZY8KSsDzrgFVvT/BWxjOaoc= Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-628-T9yEDL0oMzmPiAB7CU8PZQ-1; Fri, 06 Jan 2023 08:35:35 -0500 X-MC-Unique: T9yEDL0oMzmPiAB7CU8PZQ-1 Received: by mail-ej1-f72.google.com with SMTP id qw20-20020a1709066a1400b007c1727f7c55so1144538ejc.2 for ; Fri, 06 Jan 2023 05:35:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:references:to :content-language:subject:cc:user-agent:mime-version:date:message-id :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=LIoBt2cIV9yO6fK3uHUSYIcjRX0xwLFEsr7h2iHNS+A=; b=c+JRPR8BXoXXODExhQYuIvXLOdcInaGRFM88sXmkDWplMnQPaz/bmVdILEQuheSU6Y 69ydONHoOTuf8lrNJy2p9bhoihxID1hezonMprkZ2c6E1eft74M14ZaeKFYR6/z8CXhQ hlvfiKfp8t1PEF6lbdhZGBMX0GNGu1clg23WD71ihjBwQDNDirGXQupGpqpEJb/HgEhh S4Y5lSkzR329tHOy9FQVwcQxr5dLaY7FKssWWv9J3VYkZDtfj+akqEkag2y4fIIByvnH yDyHNCyxuRA47+DSawdvm5GZAdVF3k+gBm9j/CapddsvcSydb2yeAdDWqjpGxBoQa0yI 4Oxg== X-Gm-Message-State: AFqh2kq1Kk6jVAuFIeIxjWMeYGP0VUOjdgHn4X6uZgVZrADsHO0kgUdq /WJyKIAh4HuF+BGy9nhQ2XyYuCsqyI67RWjKh7d/9zFNR17MhkP4VakqbrB7YhfMVr9d1q2eyRW 4DZQCIKqEnR+4oPfr X-Received: by 2002:a17:907:d045:b0:7c1:5464:3360 with SMTP id vb5-20020a170907d04500b007c154643360mr65541988ejc.65.1673012134665; Fri, 06 Jan 2023 05:35:34 -0800 (PST) X-Google-Smtp-Source: AMrXdXvWAUneBPUc38Wmpn/S6VLRUMXWYlzfkb+3PTkKLrSs5aK4knINco9ASbmEMCIyTnFye+LLsg== X-Received: by 2002:a17:907:d045:b0:7c1:5464:3360 with SMTP id vb5-20020a170907d04500b007c154643360mr65541971ejc.65.1673012134493; Fri, 06 Jan 2023 05:35:34 -0800 (PST) Received: from [192.168.42.222] (nat-cgn9-185-107-15-52.static.kviknet.net. [185.107.15.52]) by smtp.gmail.com with ESMTPSA id 18-20020a170906319200b007c1651aeeacsm403265ejy.181.2023.01.06.05.35.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Jan 2023 05:35:33 -0800 (PST) From: Jesper Dangaard Brouer X-Google-Original-From: Jesper Dangaard Brouer Message-ID: <2bdb5499-beec-d44c-b23b-38ad11eaf554@redhat.com> Date: Fri, 6 Jan 2023 14:35:32 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Cc: brouer@redhat.com, netdev@vger.kernel.org, linux-mm@kvack.org, Shakeel Butt Subject: Re: [PATCH v2 02/24] netmem: Add utility functions Content-Language: en-US To: "Matthew Wilcox (Oracle)" , Jesper Dangaard Brouer , Ilias Apalodimas References: <20230105214631.3939268-1-willy@infradead.org> <20230105214631.3939268-3-willy@infradead.org> In-Reply-To: <20230105214631.3939268-3-willy@infradead.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 05/01/2023 22.46, Matthew Wilcox (Oracle) wrote: > netmem_page() is defined this way to preserve constness. page_netmem() > doesn't call compound_head() because netmem users always use the head > page; it does include a debugging assert to check that it's true. > > Signed-off-by: Matthew Wilcox (Oracle) > --- > include/net/page_pool.h | 59 +++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 59 insertions(+) Acked-by: Jesper Dangaard Brouer