m nobody Mon Oct 20 23:20:21 2025 X-Original-To: freebsd-current@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 4crBHS3PNZz6DK2y for ; Mon, 20 Oct 2025 23:20:36 +0000 (UTC) (envelope-from rick.macklem@gmail.com) Received: from mail-ed1-x532.google.com (mail-ed1-x532.google.com [IPv6:2a00:1450:4864:20::532]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4crBHR5wbjz3mkZ for ; Mon, 20 Oct 2025 23:20:35 +0000 (UTC) (envelope-from rick.macklem@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20230601 header.b=fE01TTVR; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of rick.macklem@gmail.com designates 2a00:1450:4864:20::532 as permitted sender) smtp.mailfrom=rick.macklem@gmail.com Received: by mail-ed1-x532.google.com with SMTP id 4fb4d7f45d1cf-63c12ff0c5eso9920284a12.0 for ; Mon, 20 Oct 2025 16:20:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1761002434; x=1761607234; darn=freebsd.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=aJl1FJR/ZFdsJw/3BFcPQBibj9xQI1wPun2y28U/GBY=; b=fE01TTVRzQACu2WZYZ3eEqjg52tWeiAbeIOpBlKT37KwJ10U1IZrPqdZ+i03I585ko VacCVKmQOZLjpUSZCubp/ZUrKxq+gkCoWQnfFGZYjBNCWE0PYKXHkp/CEnA83YCuqMA2 krf+D7k7MdJgLyvyvoYr23Xt/+DJAjQKjIaZwrA9WgvZK6UgOeQUmqABkWyqAFNpABUG 7XSZ7MtMLREvm3r+adf7zeR2Apl2SUUjivHKT48tTd9yjRpEqnQtndzLzNr/8TIpNm4u x24UBH9CPRvP0qw1RChwfCtUQvgPbqbHgEU8GTgSFMTWw5sJ3vdrqVSKEw3s38om4+uL uxcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761002434; x=1761607234; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=aJl1FJR/ZFdsJw/3BFcPQBibj9xQI1wPun2y28U/GBY=; b=cLCF+X5g9VB0H5e2Pab2GL+Ym4NdhlYtIuLNVCHa8RAww+7hIbrZPAEWWjEYrp2Bhv oqfI7hNMDvD3XHY9PKWMrcqJSKwD7z3z/nIjEbrLhs2elGLKP7pHsifO9vQpXH/EZnQ/ WCGowWwWksJ4DQe/FtqQ3S5zGEp4kPA1lMxYA40vQJTz1wv+S5SzeB1IwhPNhiCFSnBn ooWH8xN9y0yfeRKJsYUamzColFZZMxh6E0J/wub6TLUZvlpvwrcA1PsMIURcXqX15JCs WfXIFhkISVtMBvx9MdEs0GCULcWoccqkr+MCWy4r3CC2ygSilvqFkHveMT8p/d5OF3b8 BK+w== X-Gm-Message-State: AOJu0YxRNsB5m1WpE4Pxq+4SCSZM3pIMOE8eMC4XPiZsxasGJNHe8j7v zfphmzVsPXkdCZ6rRaXvTB7qBvXJj/hYo4RgHJ5Hbpj3MWQcEFRSBhi8qBFOLZRQ4p3ZNnItZkg mn6AXkgh9M4f/9nHFxb2XTwi/o1R2XMIFSqA= X-Gm-Gg: ASbGncvqN7vjr0gn2j04FqZy6Lj6KypgEZsgwG16gjMSTtIfpPktzBVGLkymIQzDgkM d/Kk5eWKgGvKBmIaYH362pufRLm6X0/cIAvH/H9f/8pSV9ZFlnategQfz+mqymqyqVS9S8M1a70 U9oFve4eS/3P3E1N/wSjtPCvtRQ/Wp1HlOwKlJ5MbmAYuBLG8mbqWy9CGIOKZ4ScjmVYnar+GMb FqSZaq25gFxtqgc23wV6zpNhk1OqCYWf1yjE/aImd2BXwNF0YthaAY5atGY/4FFAf2Oa2xi1ch7 ZD3wTq3rmgv2Hy/jReQ6Tu27GLo= X-Google-Smtp-Source: AGHT+IFUrFp6lzzEhr6KjECvOWf+sKLWkv4+rRe/qNfYfCLSTzMmiZKy4IQriZEr6rRtXOJuTkKWX8UOMikpeJxxivI= X-Received: by 2002:a05:6402:5c8:b0:63b:ee76:3f63 with SMTP id 4fb4d7f45d1cf-63c1e1f21c4mr15272145a12.7.1761002433617; Mon, 20 Oct 2025 16:20:33 -0700 (PDT) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 From: Rick Macklem Date: Mon, 20 Oct 2025 16:20:21 -0700 X-Gm-Features: AS18NWApvQIxOeRwtuqU2X65TJNhj6aozYJiwTf_AY2i7Rkd3cQdJYzytH_EkmY Message-ID: Subject: RFC: _PC_HAS_HIDDENSYSTEM rename To: FreeBSD CURRENT Content-Type: text/plain; charset="UTF-8" X-Spamd-Bar: --- X-Spamd-Result: default: False [-4.00 / 15.00]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; RCVD_TLS_LAST(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_TRACE(0.00)[0:+]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; TAGGED_FROM(0.00)[]; MID_RHS_MATCH_FROMTLD(0.00)[]; MISSING_XM_UA(0.00)[]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; RCVD_COUNT_ONE(0.00)[1]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::532:from] X-Rspamd-Queue-Id: 4crBHR5wbjz3mkZ Hi There are three flags UF_HIDDEN, UF_SYSTEM and UF_ARCHIVE defined in sys/stat.h (their origin is in MS-DOS). If a file system implements any of these flags, they implement all three of them, afaik. Commit afd5bc6309 (in main) defined _PC_HAS_HIDDENSYSTEM to allow pathconf to indicate if a file system supports the first two of these. I had ignored the third, since it is listed as "deprecated" in RFC-8881. It now turns out that the Windows NFSv4.1 client folk want support for UF_ARCHIVE and consider that it should not be deprecated. I do not think adding a separate _PC_HAS_ARCHIVE pathconf name is useful, since it is supported when _PC_HAS_HIDDENSYSTEM is returned non-zero. However, the name _PC_HAS_HIDDENSYSTEM is misleading, so what do others think I should do? - Add an alias for _PC_HAS_HIDDENSYSTEM called something like _PC_HAS_HIDSYSARCH or _PC_HAS_HIDDENSYSTEMARCHIVE? (Since _PC_HAS_HIDDENSYSTEM is now in the OpenZFS code, it needs to remain in unistd.h, at least for now.) Or - Just leave the name as is and document it correctly in pathconf(2)? Thanks for any comments, rick