From owner-freebsd-net@freebsd.org Mon Feb 24 22:41:36 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5F4352464EA for ; Mon, 24 Feb 2020 22:41:36 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from CAN01-QB1-obe.outbound.protection.outlook.com (mail-qb1can01on060d.outbound.protection.outlook.com [IPv6:2a01:111:f400:fe5c::60d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.protection.outlook.com", Issuer "GlobalSign Organization Validation CA - SHA256 - G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48RH9T5mb1z3MFf for ; Mon, 24 Feb 2020 22:41:33 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ApKPVed9tCdN+PmuaE7Yr+bVQTR1EaUMSA1MKmHqYT3LyX+p+i1zKnq4SxaMtlrOaxMi6jeumnSp2/gWHv25MZbLYsGNKPmbNH9UZ3rV70C590tkm4Pb8f89Xd2bNK7BP1umQ02tn+lfei4SRhxNZMr73wuVA95UFEGtel/TXBpHkOJcbsb3nqdAkt7SBG2eDkdlqRAQ2N30MAZqhyhIdsYgSH6euxJzHq95KHowSLgZlqhXkglScYBAkWmkeN12Tl1pHbdD0LfH+o4tSSdXqsUAxErPqZt753Jsi4TRR2s2fxRc6hSXC4+ba0aRLlu8vV/ki6y0YWg79wZ6up8PCg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=OuoyoDxfm6TGrBozHjkJWJ+1gV3XVp576B7DLSF8kPo=; b=TyfF0m9mVQWw00QgT+E5YgY3a2C5/VSTNqK+A5lbrEA1apnbQuHUGWEeGNaxQAHmGbmLhs7ModmCFxoQuZ7VPlVheCPQSVbHNj/UnuaoyarHskfGQ1LpTJ+gtmreMmmenaVTvT9NRq9aRFk38MpzwXvi82/3CvDJjoG3lQ6CPjUrB//JHw9E08AM+efMMjo1U/UVF+4kXAFGrF0OahH243DQBMTF7nO0A7icaKyHyO6+61pbb9ZVOaHI9cRf+3HpOlUonqPdw8jAuaQDdWqybFMboD/7gvRpBbuUNPNNsbiD/G2DQxoz18m+tUnHRvRfa5shwMhHTCKtR8tHeW+f/g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=uoguelph.ca; dmarc=pass action=none header.from=uoguelph.ca; dkim=pass header.d=uoguelph.ca; arc=none Received: from YTBPR01MB3374.CANPRD01.PROD.OUTLOOK.COM (10.255.46.82) by YTBPR01MB2334.CANPRD01.PROD.OUTLOOK.COM (10.255.12.155) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2750.21; Mon, 24 Feb 2020 22:41:30 +0000 Received: from YTBPR01MB3374.CANPRD01.PROD.OUTLOOK.COM ([fe80::410e:652b:6fbc:9aa4]) by YTBPR01MB3374.CANPRD01.PROD.OUTLOOK.COM ([fe80::410e:652b:6fbc:9aa4%3]) with mapi id 15.20.2750.021; Mon, 24 Feb 2020 22:41:30 +0000 From: Rick Macklem To: freebsd-net Subject: use of m_copym() for ext_pgs mbufs? Thread-Topic: use of m_copym() for ext_pgs mbufs? Thread-Index: AQHV62MkFCvYXPmQLka8RBheYR9quA== Date: Mon, 24 Feb 2020 22:41:30 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 14b30caa-aedc-4890-d94a-08d7b97ab155 x-ms-traffictypediagnostic: YTBPR01MB2334: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5797; x-forefront-prvs: 032334F434 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(396003)(366004)(136003)(346002)(376002)(39860400002)(199004)(189003)(91956017)(66476007)(33656002)(76116006)(66556008)(66446008)(26005)(5660300002)(186003)(2906002)(9686003)(66946007)(64756008)(558084003)(52536014)(55016002)(786003)(316002)(478600001)(8936002)(81156014)(86362001)(71200400001)(7696005)(81166006)(8676002)(6506007)(6916009); DIR:OUT; SFP:1101; SCL:1; SRVR:YTBPR01MB2334; H:YTBPR01MB3374.CANPRD01.PROD.OUTLOOK.COM; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: uoguelph.ca does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 897fjMfmTnhE3QDZmoF6SdWn9hq9D6F1J71KFPPJXOpssUo5AijSOfLfqX22l40/8T7wbLdEWRGrOEMJ8prq8WPyDb2GdclLY/zeK4iFYXse8nIgaByCAKAW3aC5SwUzUm+Hxl0IBmLbK04oeSZhOrFWb6x7j6U067a01V8/J/mJJMyrLuPBND8OGbYrNqQUkfacPMt7cvuxgarMw4ET/n6cRxqAqBzBMctE9A9qkED3nBZXhGyh0L8vAuYa2SuRyRNU/lR2WZzrHvyTKlmY42+9/bd2ZHeS3dcfUu4X7eRD5MW1FI5r78INfPRdoS4PeW1mfsuh2nHvnjJPlC4RW4+edl5xQZ7TMG7DkMX2E0HV6Xq9jFcfCDz2KEAvVGGRfp9l2KSfbPQid0Jgo/8ygBSf4swVGCTtwPB9HYudrSHXwCznzGpTBBy+Jt+G3rG0 x-ms-exchange-antispam-messagedata: ENUn/vt+y9/7K8CHCTaRKEWFRR9qWFq+qcyQgjsM47cSkXLqPSIEo+hj6/n07AxcL8BDjLgRpVEUzf4PFaGwcuad4QiEO7+WS23iHDynSZ3qt7fqLCAippLugJpCSVM0298k0+kBRPiTJBPPKE7Emw== x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: uoguelph.ca X-MS-Exchange-CrossTenant-Network-Message-Id: 14b30caa-aedc-4890-d94a-08d7b97ab155 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Feb 2020 22:41:30.7317 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: be62a12b-2cad-49a1-a5fa-85f4f3156a7d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 5WcPDRQzjbh2Snlf/bJGcq+6opPVXeY4P3vGVydcrYjT4ODOIzylFHyQVh8gbak6RqdlXxenxWjEkUD5oaapYQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: YTBPR01MB2334 X-Rspamd-Queue-Id: 48RH9T5mb1z3MFf X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of rmacklem@uoguelph.ca designates 2a01:111:f400:fe5c::60d as permitted sender) smtp.mailfrom=rmacklem@uoguelph.ca X-Spamd-Result: default: False [-3.73 / 15.00]; RCVD_TLS_LAST(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a01:111:f400::/48]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[uoguelph.ca]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_THREE(0.00)[3]; IP_SCORE(-1.43)[ipnet: 2a01:111:f000::/36(-3.98), asn: 8075(-3.12), country: US(-0.05)]; TO_DN_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:8075, ipnet:2a01:111:f000::/36, country:US]; SUBJECT_ENDS_QUESTION(1.00)[]; ARC_ALLOW(-1.00)[i=1] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Feb 2020 22:41:36 -0000 Hi,=0A= =0A= Since I am just figuring out ext_pgs mbufs, I thought I'd check...=0A= It looks like using m_copym() on a list of ext_pgs mbufs is ok=0A= only if it copying the entire list (ie. m_copym(m, 0, M_COPYALL,..)).=0A= =0A= Is that correct?=0A= =0A= Thanks, rick=0A=