From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9B235C5DF97 for ; Wed, 26 Aug 2026 15:56:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D00ED6B0092; Wed, 26 Aug 2026 11:56:10 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C8B546B0095; Wed, 26 Aug 2026 11:56:10 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BC7A06B0096; Wed, 26 Aug 2026 11:56:10 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 9F0956B0092 for ; Wed, 26 Aug 2026 11:56:10 -0400 (EDT) Received: from smtpin13.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 2AAB61C0693 for ; Wed, 26 Aug 2026 15:56:10 +0000 (UTC) X-FDA: 85143872100.13.AE4E009 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf21.hostedemail.com (Postfix) with ESMTP id 6918F1C000D for ; Wed, 26 Aug 2026 15:56:08 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=VylVp4aL; spf=pass (imf21.hostedemail.com: domain of brauner@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=brauner@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1787759768; b=lI4aEpMzoEonJQ1N/HeuKlC6zm4eporusHpAd4i5cUOKJ18U3e+YS4cZKp9l3ej2GTjETW F/kL2uf+0P/T7ctet3ulxmcwtCTAHHXDb7j8TDjb6BVacJYSxcLGy+lO5ZIdWZ4tK2cpAa lARiw17/7ti4fpAxSoo3lIqyxH123b8= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=VylVp4aL; spf=pass (imf21.hostedemail.com: domain of brauner@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=brauner@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1787759768; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=NKxxVO9WHJPVfrvijFU6xCamxUW5/MUbTlElGx2vOjw=; b=o1NnHR2SbFmpfKFAd3zhHZr+hBgqF3jdsHOQYmo5cifGpVov9aPqfovQpxM9St8kOL89oS YTabmih/kfo1zwKVOJduONYg08lAyBGZPE7fwY4+MlRu+gCQCiohuMYTnr/fvJop+tVtsh WCf6PZMpkWFvSsv0GgV8SYuOVlUwGxQ= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id BB52343E78; Wed, 26 Aug 2026 15:56:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 37A821F00A3D; Wed, 26 Aug 2026 15:56:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787759767; bh=NKxxVO9WHJPVfrvijFU6xCamxUW5/MUbTlElGx2vOjw=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=VylVp4aLzoj6h2ekemVf7MQp3OCAp7cDjz3M/q4OACcXKDRYDvy3YTMSXZedvDHdk Vj8aZNPn407fWGqDPrwGM3nrGyZi6UHLYS6F4M9SVn5fU3VuUQARqvk3l7Tu98y8X2 lWW4duh0K9e3dGo6vWEf/UN18MnESm/QDHE+CxpinZAh66x7MXKkah1PNv6fYLwyVX Y/ghYYGhs+h/T+iVQoa9kiPdH9Ed97Q/eXh7k0OYFBhNb6CExRCy1aZ+0KTIl9ayZy k69T7XjFVLHsN/vGElXQZgh6a6Rdh5nSSRkzAhimlSvxOG1sLMhdt/kJQ9bxxAZTuV YaVDmFik2x6zg== From: Christian Brauner Date: Wed, 26 Aug 2026 17:55:48 +0200 Subject: [PATCH 3/3] binfmt_misc: document the field delimiter MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260826-work-binfmt_misc-delim-v1-3-43618adf8599@kernel.org> References: <20260826-work-binfmt_misc-delim-v1-0-43618adf8599@kernel.org> In-Reply-To: <20260826-work-binfmt_misc-delim-v1-0-43618adf8599@kernel.org> To: linux-fsdevel@vger.kernel.org Cc: Alexander Viro , Jan Kara , Kees Cook , linux-mm@kvack.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-doc@vger.kernel.org, Farid Zakaria , "Christian Brauner (Amutable)" X-Mailer: b4 0.17-dev-362b8 X-Developer-Signature: v=1; a=openpgp-sha256; l=894; i=brauner@kernel.org; h=from:subject:message-id; bh=PndQPAXcBeOaQi7lJUgei03fmhGSoQt6dZRbXT9rno4=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWT183RbnOWo0riQGX/MUCv02qU6Zu/ZgWYdP2tn9yraz l7hq3ymo5SFQYyLQVZMkcWh3SRcbjlPxWajTA2YOaxMIEMYuDgFYCKr0hn+Vz/gnMhrvWk933OR GRZCL/TE+6UyHM17XXJm6k86cLs5nuF/cHefEaPzp6/5U3OYF51m/JO+5rPMhDCOOjavLkm+8zu 5AA== X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 6918F1C000D X-Stat-Signature: soxt6ahwomy1kzfb3qm57c664s1pajb5 X-HE-Tag: 1787759768-507800 X-HE-Meta: U2FsdGVkX1/toUAM2BJwooPHsCWdI04GBVHodnxGk/JCxgfwwl2QfaVd9lMF6b8pGziW00xWokHcZlu4wsrYXNtwqUTri2KuIR5Nybm8eD5jdXCCqp3GCwAtXGTSnQGbsXEzpzIIe3MLL8uezf9Cg/jLEBtScpmHHpHKm2Y82LmgNFF19+OGzxJQ12zBQVzSBoUdF1posrUZR0HH4SJwsuJz82qmYQC7bhU3HZ4niq8M6RiMd7ibdF2DCb8cjlMOCR7egCod2ipXeAOPEPR/D1HKrewN0vV1ii6Fkk/5Cw9XjFsC8OOH7T0h2ppJsFDCxBsSjB2SmZRE4dCq4nIursiPXupEbq3HOPXFCC8E/TTiwatTWmCGaixFnCPWjTOFr9ZHVcHLJe6CYCWWbn4Z3p72bQPydC8zfddaxry3yk/2P5suUJ3peDkysYYZ+B26m2VnOnrJ1VCmoYt3c/ZL2btzEz95TsXjDpSJagGg4m/XLobZNnhCifnwJaweKm0nSORh0MzNfEYAZSyITeKNFbXh+A9a2RjzvkacdlFl6B0d7gMOuSVOLn9ZnlgwbmnjAHoooDSObU2t4I4wc1hJP4OX2LUFD0eheACjmdbENH9vd0aOoraC383HEu45okICNgFWgGo2MCZJV7KLRKlFoPfw+1or82yKiIKkjGxT+G70zx5CyNPEPv0PAAXQDF/jrq4gwPPUyqmzWooOBbW13leLb19AzKEvOLyx42mIAcnwkg8bh4DM4qYrEiPDuc/d/4hqE71ARUbi4DlhZHNCHyPHK25K6gdt73F13XQ5Wtr+qQYFoQWTXvV16+V+OlbGPw5XcgKI3d6x/xWpWRcJt3NXTaO+Qw/H86QV3uEDRRbjfnyDoy4RjNd9/bgJ3A83W6WHWIc0hvrG3ANyXg5tBQx+xrHiWnyI0+bYKjTqw34Z/yvcDVHhoUSxnNuu7BGRIyr4jQEOdZBUotP9YRt NnvRiNa7 BjtCg2vlpCi9roQ9i2UH4FibyUGk1+f9SsJH2ENBnByAVQuAd3eNHMelt0xAjtPaZWufvcbiueFKgNzeZ3zmyFMQRKu+pffCvEDqdxc7yOgByjuQqeG4AxHb5apfHJN3+0i/Siw6ReaNFNQdzJOZwKlYfCB4yPSfwWtGwQsGKd+l59lkAbhxxel5EQfrI2c45hCbabdXcLo3Etnn7H1jO5igmfQRYRr/i0e0FuKLmuPwp5Qv9nZ0NkmAWnVw7/j4/WUjcXjHPyY6oSKQyvx9jDzQRJ/t/QuJGit/oOKcdJQkdDkisJ34Gz0G5aAFH9jp4vjoz9xRXlSIXSb1cP2TLFLcSNvZ24HRh0w5wYHzHEJvtegc= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Document the field delimiter. Signed-off-by: Christian Brauner (Amutable) --- Documentation/admin-guide/binfmt-misc.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/admin-guide/binfmt-misc.rst b/Documentation/admin-guide/binfmt-misc.rst index d26b63a27c25..9e84b877d06d 100644 --- a/Documentation/admin-guide/binfmt-misc.rst +++ b/Documentation/admin-guide/binfmt-misc.rst @@ -19,6 +19,9 @@ To actually register a new binary type, you have to set up a string looking like ``:name:type:offset:magic:mask:interpreter:flags`` (where you can choose the ``:`` upon your needs) and echo it to ``/proc/sys/fs/binfmt_misc/register``. +The first character of the string is its field delimiter and can be any +ASCII punctuation character other than the backslash ``\``. + Here is what the fields mean: - ``name`` -- 2.53.0