From owner-freebsd-current@freebsd.org Sun Sep 27 02:52:43 2020 Return-Path: Delivered-To: freebsd-current@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 87F593E950A; Sun, 27 Sep 2020 02:52:43 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from CAN01-TO1-obe.outbound.protection.outlook.com (mail-to1can01on060e.outbound.protection.outlook.com [IPv6:2a01:111:f400:fe5d::60e]) (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 4BzVZ22sGgz4P45; Sun, 27 Sep 2020 02:52:42 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=idMrZ7BhPcxqBzhupRWkRUSzXVLP/7V6tg5z52J0ZTvk1WZORdylEQ0cTGkg5dgoqyrxZqQycVyPs4AdmhQFIY8PK46fgz3M1XE1sHm90v70CKhexC3IQJIlX6/oW83m1qNkeCDRAtO7bZwt0neA0WJTWusxSuYIJ22cnnaJ+AunsnebJQJSWZJZg6vayg42ky2wDt7XgJXiQOKtfrWKTF248KbudVdfsOwSAuOoGad3ZMuiJl5SVVBnQsDfGwWXg2GaB6JmYWossQb3IZN3fORWyYKWClZi9PDaV0glu2Cv/7jWHcidfZLNy0fYgHsEmnGUiQhleMLRjxqVvumFQA== 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=uLKZ5VntpkUNMq5oLZ4rXndQpmPBCnBSfZBkvH+HxxY=; b=DyGO6Shfi4ujsIA+0l65HvVz0rm2AnXV0Na79Fp2a7/hvlMPBMLE0IgQdd6ZdEmI1EJWc9KdgC0DwcUxQ7EtYCtt6mm2foVMZGPV4nzdUVPlyrVTNoOActEed8NLoESXgui2WPXM3tvKhInnx+lgGmPjstIwCtf06BF2VleQ6dQ/EeYDKmdGRCSo98Et2v0D9jz6qvTmEjrry+j0yaNAwAl1qTJf4yHJk8gMBdFNfGPdG1e5kltYOZ5f9qaarGw58nR5+Yxf8TO7oMHKNkZ1x//velF1aGyDWAHq6yhLU3/ZuhaNBk6RjbLMZDKnMV1FKlMD5AdnNOt4ChJeAQyehA== 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 YTBPR01MB3966.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:24::27) by YT1PR01MB3530.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:1::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3412.25; Sun, 27 Sep 2020 02:52:40 +0000 Received: from YTBPR01MB3966.CANPRD01.PROD.OUTLOOK.COM ([fe80::687f:d85a:a0a3:bd20]) by YTBPR01MB3966.CANPRD01.PROD.OUTLOOK.COM ([fe80::687f:d85a:a0a3:bd20%6]) with mapi id 15.20.3412.028; Sun, 27 Sep 2020 02:52:40 +0000 From: Rick Macklem To: "Wall, Stephen" , FreeBSD Hackers , "freebsd-current@freebsd.org" Subject: Re: RFC: should copy_file_range(2) remain Linux compatible or support special files? Thread-Topic: RFC: should copy_file_range(2) remain Linux compatible or support special files? 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Inform the linux community of the addition and let them decide= if they=0A= > would like to adopt it as well.=0A= I'll assume you are referring to the "flags" argument when you say "param" = above.=0A= =0A= You could. However, since the Linux man page says it will return EINVAL if= =0A= the "flags" argument is non-zero, you've still introduced an incompatibilit= y=0A= w.r.t. the Linux behaviour.=0A= It does make it clear that copy_file_range(2) will have the non-Linux behav= iour=0A= when the flag is specified, which I think is a good idea.=0A= =0A= rick=0A= =0A= =0A=