From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2F68734BA2E; Thu, 19 Feb 2026 16:21:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771518117; cv=none; b=MrsX8kaRSNozxCxaWrJkKqvhqxoKj1qaX6n0WKRZuhKtPEVdIF2zQ+HmHPTpV9P4jG7LbkjpXyDsQsvrQao2aNLNwLZE1CiHLfYnUuw3mOaJtkzw5dCOn8vL6Ii53sS+e+/ULbUWHZfDNvjoYWvJI977TMEpYFzg0yQ72Tpt40M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771518117; c=relaxed/simple; bh=bbrvKuUbJMxjfPRyQn5a0x4qovBxvrZ93fIJ/R5aibE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=gf2g01RWDTGDVPpk6DQAlutEakB38S0d8OMov/I+FRZjgG9bhw0kafVU2dzCSU2QgkGdYKD2DIAMDTAgSS/AJ4MVSHcdtY5omXuwjvVUwaviTIehcxZ/EO6YFsf0ugSDl+CbkeQSc91E5z07ngrh4x7n7udN9uL4fBnRgG0EixA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=A2ST6qXQ; arc=none smtp.client-ip=198.175.65.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="A2ST6qXQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771518117; x=1803054117; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=bbrvKuUbJMxjfPRyQn5a0x4qovBxvrZ93fIJ/R5aibE=; b=A2ST6qXQqolv97prPEDiMrL5HVQWHpbW6ELTSkDdchU6f/TI4jNMRAY6 xoZ2hd5jEKFHbjZe8T/WvDF8f7dB0TMQJYcRmMxDc2s00rGAZeMIvPa/N mUocYbMJQ3/T3NKrpMNYPkaeQ8B8PX+Mmbuhl3TJQHU05mnd8dhl8McNc jHmwBnLoO4giip2zOwNEcCNSxO61Y0abRzsvixRRhojBFdnb+OwAI+X0m aMPfmhFCGq/5ZxDSXBOASvKLXswwgk10ToEaujb3W1UICWmSWQMHmz553 n1PZRyimRym6HIwa/aJJXwKphs/yh4ghJsMXajceETyYdLc+KWblMUjVu A==; X-CSE-ConnectionGUID: hfKSseHISYOiUY4OLMzfag== X-CSE-MsgGUID: YINsGrktRM2DjE7DmJSMGw== X-IronPort-AV: E=McAfee;i="6800,10657,11706"; a="72650251" X-IronPort-AV: E=Sophos;i="6.21,300,1763452800"; d="scan'208";a="72650251" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Feb 2026 08:21:56 -0800 X-CSE-ConnectionGUID: LS+mcgySQ3SV8kcPkNMX5Q== X-CSE-MsgGUID: wzAgoTZ4SkCSlQfRdX22PQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,300,1763452800"; d="scan'208";a="212483558" Received: from dnelso2-mobl.amr.corp.intel.com (HELO [10.125.110.20]) ([10.125.110.20]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Feb 2026 08:21:52 -0800 Message-ID: Date: Thu, 19 Feb 2026 09:21:51 -0700 Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V7 09/19] famfs_fuse: magic.h: Add famfs magic numbers To: John Groves , John Groves , Miklos Szeredi , Dan Williams , Bernd Schubert , Alison Schofield Cc: John Groves , John Groves , Jonathan Corbet , Vishal Verma , Matthew Wilcox , Jan Kara , Alexander Viro , David Hildenbrand , Christian Brauner , "Darrick J . Wong" , Randy Dunlap , Jeff Layton , Amir Goldstein , Jonathan Cameron , Stefan Hajnoczi , Joanne Koong , Josef Bacik , Bagas Sanjaya , James Morse , Fuad Tabba , Sean Christopherson , Shivank Garg , Ackerley Tng , Gregory Price , Aravind Ramesh , Ajay Joshi , "venkataravis@micron.com" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "nvdimm@lists.linux.dev" , "linux-cxl@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" References: <0100019bd33b1f66-b835e86a-e8ae-443f-a474-02db88f7e6db-000000@email.amazonses.com> <20260118223224.92472-1-john@jagalactic.com> <0100019bd33d0dd3-81bc3562-6f64-4689-9312-6b6cec095540-000000@email.amazonses.com> Content-Language: en-US From: Dave Jiang In-Reply-To: <0100019bd33d0dd3-81bc3562-6f64-4689-9312-6b6cec095540-000000@email.amazonses.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/18/26 3:32 PM, John Groves wrote: > From: John Groves > > Famfs distinguishes between its on-media and in-memory superblocks. This > reserves the numbers, but they are only used by the user space > components of famfs. > > Signed-off-by: John Groves Reviewed-by: Dave Jiang squash the defines with usage patch? > --- > include/uapi/linux/magic.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h > index 638ca21b7a90..712b097bf2a5 100644 > --- a/include/uapi/linux/magic.h > +++ b/include/uapi/linux/magic.h > @@ -38,6 +38,8 @@ > #define OVERLAYFS_SUPER_MAGIC 0x794c7630 > #define FUSE_SUPER_MAGIC 0x65735546 > #define BCACHEFS_SUPER_MAGIC 0xca451a4e > +#define FAMFS_SUPER_MAGIC 0x87b282ff > +#define FAMFS_STATFS_MAGIC 0x87b282fd > > #define MINIX_SUPER_MAGIC 0x137F /* minix v1 fs, 14 char names */ > #define MINIX_SUPER_MAGIC2 0x138F /* minix v1 fs, 30 char names */