From nobody Thu Jun 12 13:35:15 2025 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4bJ3S34N8hz5ynGQ; Thu, 12 Jun 2025 13:35:15 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4bJ3S32b7qz3vp4; Thu, 12 Jun 2025 13:35:15 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1749735315; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=nXVUcRzN8gV382O2FTSgJsrLSuHuTIHhg4PXJ5A5WiA=; b=NZmBmjwJ2AVTr4fXnczLmsXXfjdY8l+WFQWADE8Fp0e2swBxufDQd2G5sKq5k6KSvKPqee 6bfdozUsApitLnUwypkmSbpmDFl36tZi/KHylMQsgD3kNgG0dsB0i5SCDdOH4Mt2p0/w2J set0yQIogiDLKqEfiZpwhsugAyzCdjkPTn2/aNUr5D1z67ZEk66apWtda38WBirPwo/EVN /RbCg7+H7DWLCNhJ0jtXxBkdo3fyUGOR6257DksDUoSxVNb7n58Jr0aiRyc8KaupITcElm s+7Dn/5v6HLZfm66muL5+DnQQFRM/O5waQ9bdFljSR/S73m6kOuv6shF9zIQQA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1749735315; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=nXVUcRzN8gV382O2FTSgJsrLSuHuTIHhg4PXJ5A5WiA=; b=xDSy6fK/INqGsavO+gTCpjnERWd9K2SYqpQR0KKAIUMPmgVCnFABv1yyLcMMwtjjw3+h87 cu5dd7wpyPQnouW7DRoY1ilOJxTkt84WnI26Y20syI7PF8eaovcH2M39vVCA4RAWb0NH9H D7voyouDQPsw3WYONHgWfHoap8QARBaN/Nn71/dcSEpmZ+Nmq8tEL++vn3H22VNg5UJjZj 2V3z8lsgNQtBFxbTFYV613FfaAwXXhxCV5WsqRV794tEdXeZ2hY5+EH1eYSkdmG/XmfPhh BmbXhSjGeXsYEqbGIXntGTPqN/oH8nmsSuRdr3ZQkUImekUgNqoXPPsMz7Doqg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1749735315; a=rsa-sha256; cv=none; b=DHjIezj8q34TJU9veG01ixYg/hj/gmkT0moBi8hcniX5NiKuBlxvEPDdt4EyN+6gMxXjZD yGxaP3kqWV6dD0eOlV56Z3wV82YOJ37IU+K82Y4XGYqJCa6vwLT9Ydy824dil7y3RDQ5jw YmMOdywMrou/SiXQ9+sdps2Mr2+a4NSN1v/1qXTGusgvK/s36gJHEy3iQ4ZrY99Pey89Zr Iz1Or01gA/I+2FDlkSofn4nvE2yf+GqKProv5A8gjW/TTJKE7f3YFy6WMl1d2ppq9oMmRR eJNef1y+f1c1uvbyqLJZ1ZgiW988nKXCZEnzUXCrU71wkfFDVUb7PqFwmF2qRw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4bJ3S322SQzLT; Thu, 12 Jun 2025 13:35:15 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 55CDZFnx059974; Thu, 12 Jun 2025 13:35:15 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 55CDZFbv059971; Thu, 12 Jun 2025 13:35:15 GMT (envelope-from git) Date: Thu, 12 Jun 2025 13:35:15 GMT Message-Id: <202506121335.55CDZFbv059971@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Brooks Davis Subject: git: 6d0a335aaa81 - main - fcntl.h: warn that bits for O_* flags are scarce List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: brooks X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 6d0a335aaa81d3ddce95de8d862a23c97bb038a6 Auto-Submitted: auto-generated The branch main has been updated by brooks: URL: https://cgit.FreeBSD.org/src/commit/?id=6d0a335aaa81d3ddce95de8d862a23c97bb038a6 commit 6d0a335aaa81d3ddce95de8d862a23c97bb038a6 Author: Brooks Davis AuthorDate: 2025-06-12 13:33:35 +0000 Commit: Brooks Davis CommitDate: 2025-06-12 13:34:05 +0000 fcntl.h: warn that bits for O_* flags are scarce Running out of O_* flag bits will end out ability to make additions that are source compatible with other operating systems. Add a warning to coordinate all additions with srcmgr@. Reviewed by: markj, emaste Differential Revision: https://reviews.freebsd.org/D50703 --- sys/sys/fcntl.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/sys/sys/fcntl.h b/sys/sys/fcntl.h index 08aa26fbce02..c23c7eba0544 100644 --- a/sys/sys/fcntl.h +++ b/sys/sys/fcntl.h @@ -143,6 +143,16 @@ typedef __pid_t pid_t; #define O_NAMEDATTR 0x04000000 /* NFSv4 named attributes */ #endif +/* + * !!! DANGER !!! + * + * There are very few bits left for O_* flags. Every bit we consume for + * local features is one bit we can't use for future source compatibility + * with other operating systems. + * + * All additions should be coordinated with srcmgr@. + */ + /* * XXX missing O_RSYNC. */