[{"id":1761787,"web_url":"http://patchwork.ozlabs.org/comment/1761787/","msgid":"<bf9ab7e0-acb6-e29c-c7c6-97b02edd7c50@fb.com>","list_archive_url":null,"date":"2017-09-01T16:12:08","subject":"Re: [PATCH net-next v2] doc: document MSG_ZEROCOPY","submitter":{"id":68234,"url":"http://patchwork.ozlabs.org/api/people/68234/","name":"Alexei Starovoitov","email":"ast@fb.com"},"content":"On 9/1/17 9:01 AM, Willem de Bruijn wrote:\n> From: Willem de Bruijn <willemb@google.com>\n>\n> Documentation for this feature was missing from the patchset.\n> Copied a lot from the netdev 2.1 paper, addressing some small\n> interface changes since then.\n>\n> Changes\n>   v1 -> v2\n>     - change email discussion URL format\n>     - clarify that u32 counter is per-syscall, unsigned and\n>       wraps after UINT_MAX calls\n>     - describe errno on send failure specific to MSG_ZEROCOPY\n>     - a few very minor rewordings\n>\n> Signed-off-by: Willem de Bruijn <willemb@google.com>\n\nAcked-by: Alexei Starovoitov <ast@kernel.org>","headers":{"Return-Path":"<netdev-owner@vger.kernel.org>","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; \n\ts=selector1-fb-com;\n\th=From:Date:Subject:Message-ID:Content-Type:MIME-Version; \n\tbh=bsQkbr15v+TN2utpfP6jmjApPyLUZIiMUlrRxGj5zOE=;\n\tb=RJdMHHFkhi9276Kkm/dOXffZvYQcBu5u3lxfVqsC+uw20FkW0/Wq5w1XoVE8Ry6FrxyZvhVaDfSPGC4Ls6thOE7zaTn6faPJl3UQlNz0vIyNVnh7nfQHgb83T5gNZbHpFEX7H55ht/N8kxcBUM23/vY5sbAhpiVLXuT3HCfozFU="],"Subject":"Re: [PATCH net-next v2] doc: document MSG_ZEROCOPY","To":"Willem de Bruijn <willemdebruijn.kernel@gmail.com>,\n\t<netdev@vger.kernel.org>","References":"<20170901160141.54616-1-willemdebruijn.kernel@gmail.com>","CC":"<davem@davemloft.net>, <brouer@redhat.com>,\n\tWillem de Bruijn <willemb@google.com>","From":"Alexei Starovoitov <ast@fb.com>","Message-ID":"<bf9ab7e0-acb6-e29c-c7c6-97b02edd7c50@fb.com>","Date":"Fri, 1 Sep 2017 09:12:08 -0700","User-Agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:45.0)\n\tGecko/20100101 Thunderbird/45.8.0","MIME-Version":"1.0","In-Reply-To":"<20170901160141.54616-1-willemdebruijn.kernel@gmail.com>","Content-Type":"text/plain; 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SFP:1102; SCL:1; SRVR:BL2PR15MB0961;\n\tH:[IPv6:2620:10d:c082:1055:e425:8a81:8696:617]; FPR:; SPF:None;\n\tPTR:InfoNoRecords; MX:1; A:1; LANG:en; ","Received-SPF":"None (protection.outlook.com: fb.com does not designate\n\tpermitted sender hosts)","SpamDiagnosticOutput":"1:99","SpamDiagnosticMetadata":"NSPM","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"01 Sep 2017 16:12:12.4650\n\t(UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-CrossTenant-Id":"8ae927fe-1255-47a7-a2af-5f3a069daaa2","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"BL2PR15MB0961","X-OriginatorOrg":"fb.com","X-Proofpoint-Spam-Reason":"safe","X-FB-Internal":"Safe","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-01_04:, , signatures=0","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"<netdev.vger.kernel.org>","X-Mailing-List":"netdev@vger.kernel.org"}},{"id":1761871,"web_url":"http://patchwork.ozlabs.org/comment/1761871/","msgid":"<20170901.103948.870635761870673720.davem@davemloft.net>","list_archive_url":null,"date":"2017-09-01T17:39:48","subject":"Re: [PATCH net-next v2] doc: document MSG_ZEROCOPY","submitter":{"id":15,"url":"http://patchwork.ozlabs.org/api/people/15/","name":"David Miller","email":"davem@davemloft.net"},"content":"From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>\nDate: Fri,  1 Sep 2017 12:01:41 -0400\n\n> From: Willem de Bruijn <willemb@google.com>\n> \n> Documentation for this feature was missing from the patchset.\n> Copied a lot from the netdev 2.1 paper, addressing some small\n> interface changes since then.\n> \n> Changes\n>   v1 -> v2\n>     - change email discussion URL format\n>     - clarify that u32 counter is per-syscall, unsigned and\n>       wraps after UINT_MAX calls\n>     - describe errno on send failure specific to MSG_ZEROCOPY\n>     - a few very minor rewordings\n> \n> Signed-off-by: Willem de Bruijn <willemb@google.com>\n\nApplied.","headers":{"Return-Path":"<netdev-owner@vger.kernel.org>","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xkRMX49C6z9t2x\n\tfor <patchwork-incoming@ozlabs.org>;\n\tSat,  2 Sep 2017 03:39:52 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752206AbdIARju (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tFri, 1 Sep 2017 13:39:50 -0400","from shards.monkeyblade.net ([184.105.139.130]:50104 \"EHLO\n\tshards.monkeyblade.net\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751863AbdIARjt (ORCPT\n\t<rfc822;netdev@vger.kernel.org>); Fri, 1 Sep 2017 13:39:49 -0400","from localhost (74-93-104-98-Washington.hfc.comcastbusiness.net\n\t[74.93.104.98]) (using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(Client did not present a certificate)\n\t(Authenticated sender: davem-davemloft)\n\tby shards.monkeyblade.net (Postfix) with ESMTPSA id EEBD113534D71;\n\tFri,  1 Sep 2017 10:39:48 -0700 (PDT)"],"Date":"Fri, 01 Sep 2017 10:39:48 -0700 (PDT)","Message-Id":"<20170901.103948.870635761870673720.davem@davemloft.net>","To":"willemdebruijn.kernel@gmail.com","Cc":"netdev@vger.kernel.org, ast@fb.com, brouer@redhat.com, willemb@google.com","Subject":"Re: [PATCH net-next v2] doc: document MSG_ZEROCOPY","From":"David Miller <davem@davemloft.net>","In-Reply-To":"<20170901160141.54616-1-willemdebruijn.kernel@gmail.com>","References":"<20170901160141.54616-1-willemdebruijn.kernel@gmail.com>","X-Mailer":"Mew version 6.7 on Emacs 25.2 / Mule 6.0 (HANACHIRUSATO)","Mime-Version":"1.0","Content-Type":"Text/Plain; 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