From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) (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 9359D199230 for ; Fri, 12 Dec 2025 02:19:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.9.28.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765505949; cv=none; b=sdX42+821rpFSOkTWDMBSA/pJiliI3e1FrQ64wOSqWstEPjzQ0rTFRXTnASqOfq+AGAhkFxJvep4j15239B177dcQBlCucRNxU3Lcwb4rCUXDh1cWdglic1DuK5sYeyWZQf6NvJw8fsav8yfq2yyCzAaltYM8w8KJ0JrWMhTjwU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765505949; c=relaxed/simple; bh=oKmWqno+42Yszq+X+3dPg3C6ZlbSV4utaiC5PwGM8sY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ASrVn8lr1vmjsKGt/kVVN/9IDCLKcwhFNuA1GD1qVzuJgUBfQ9Dk+QavFK0wqD4AtSbIRrIW9CSjyRVn5N1/Uo8AavVIztsc29bGJheQqSPdkkNN+cIZMChclLk676p7T1+Z48P6WF023iKERC4S2y4TtfWWR9rduMtQyzA2rig= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mit.edu; spf=pass smtp.mailfrom=mit.edu; dkim=pass (2048-bit key) header.d=mit.edu header.i=@mit.edu header.b=i6jPmsRZ; arc=none smtp.client-ip=18.9.28.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mit.edu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mit.edu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mit.edu header.i=@mit.edu header.b="i6jPmsRZ" Received: from macsyma.thunk.org (fs96f9c361.tkyc007.ap.nuro.jp [150.249.195.97]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 5BC2IYhd032743 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 11 Dec 2025 21:18:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1765505920; bh=kHgJW7HgRu8VCSroGjRmOAwqb8zj56QpPoiLbKKowPw=; h=Date:From:Subject:Message-ID:MIME-Version:Content-Type; b=i6jPmsRZFsshYqSOPIZXGaEp16grpLapyL5n0LAa2Y6q8+Fs8uoaOx0TtcUMCd9nT 2QJBxhWViCMXJm9xiBNNmCNgBmX8ohWnVb+u+NSungMPk4KDsQnj1CS1cxwnmzRsMe wnnEbYZxZl0UAga3IRec8PoDOt70P9QmDHgoBwo4K0Wdd055p4anCouP5qjkiGV0HY RQ99LXn14r/Ocge+yCwLrc+U95yc6POn/QHywjGkdpv9yXUBtv+e3GaIj1CQttTaPr 8DL9FWdStVjTIIUGYKrgiC2f5PF9BCJtwx9R7MN+LZ8mLysvkjMBXB2Y7nJIjNp6mo Uuck8DUHWQ+rg== Received: by macsyma.thunk.org (Postfix, from userid 15806) id 3E7DE4FB3D3C; Fri, 12 Dec 2025 11:18:34 +0900 (JST) Date: Fri, 12 Dec 2025 11:18:34 +0900 From: "Theodore Tso" To: Chuck Lever Cc: Eric Biggers , Alexander Viro , Christian Brauner , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, hirofumi@mail.parknet.co.jp, almaz.alexandrovich@paragon-software.com, adilger.kernel@dilger.ca, Volker.Lendecke@sernet.de, Chuck Lever Subject: Re: [PATCH v2 1/6] fs: Add case sensitivity info to file_kattr Message-ID: <20251212021834.GB65406@macsyma.local> References: <20251211152116.480799-1-cel@kernel.org> <20251211152116.480799-2-cel@kernel.org> <20251211234152.GA460739@google.com> <9f30d902-2407-4388-805b-b3f928193269@app.fastmail.com> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9f30d902-2407-4388-805b-b3f928193269@app.fastmail.com> On Thu, Dec 11, 2025 at 08:16:45PM -0500, Chuck Lever wrote: > > > I see you're proposing that ext4, fat, and ntfs3 all set > > FILEATTR_CASEFOLD_UNICODE, at least in some cases. > > > > That seems odd, since they don't do the matching the same way. > > The purpose of this series is to design the VFS infrastructure. Exactly what > it reports is up to folks who actually understand i18n. Do we know who would be receiving this information and what their needs might be? - Ted