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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA16FCA5FFB for ; Mon, 19 Jan 2026 07:25:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=MKLien/uRrl6gFP2w0WYiGgm1e6Kc1RZmewH4K7RCw4=; b=zbf6S8NN7Yn/yP 3pUsaWTyJLfQFOggOcUGkznN2d8iDPrLJRDZ/839UwWOWdjzfYSSZItSlCL0euwGWhN8H8PMbMcqh Iq0c/dMlsAYROB4wbSmQT54okF5VqHIA3vOffUeoFbSzwJnAmJUkpc0kc+pqVEwkp32/FUYm4HnmJ HR0qYe4Zr7BnLGt8GnIq3qRBZp/9tYtRBaWEEtis4trrXsKqozCfg5viuqKxO/lqjR1etKV0PpzcX XwTEOxAC4rIOnub7HpStXWafPZNcdOnO/SMNMjx5zZnmDahIBECkuERh6BAZas4PO31dY7y3xCf5B 4nzfhabbILNWT7FBAT7A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vhjdz-00000001TR1-3xPW; Mon, 19 Jan 2026 07:25:47 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vhjdu-00000001TQi-3A8r; Mon, 19 Jan 2026 07:25:42 +0000 Date: Sun, 18 Jan 2026 23:25:42 -0800 From: Christoph Hellwig To: NeilBrown Cc: Christoph Hellwig , Jeff Layton , Amir Goldstein , Christian Brauner , Alexander Viro , Chuck Lever , Olga Kornievskaia , Dai Ngo , Tom Talpey , Hugh Dickins , Baolin Wang , Andrew Morton , Theodore Ts'o , Andreas Dilger , Jan Kara , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Chunhai Guo , Carlos Maiolino , Ilya Dryomov , Alex Markuze , Viacheslav Dubeyko , Chris Mason , David Sterba , Luis de Bethencourt , Salah Triki , Phillip Lougher , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Bharath SM , Miklos Szeredi , Mike Marshall , Martin Brandenburg , Mark Fasheh , Joel Becker , Joseph Qi , Konstantin Komarov , Ryusuke Konishi , Trond Myklebust , Anna Schumaker , Dave Kleikamp , David Woodhouse , Richard Weinberger , Jan Kara , Andreas Gruenbacher , OGAWA Hirofumi , Jaegeuk Kim , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-ext4@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-xfs@vger.kernel.org, ceph-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, devel@lists.orangefs.org, ocfs2-devel@lists.linux.dev, ntfs3@lists.linux.dev, linux-nilfs@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-mtd@lists.infradead.org, gfs2@lists.linux.dev, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [PATCH 00/29] fs: require filesystems to explicitly opt-in to nfsd export support Message-ID: References: <20260115-exportfs-nfsd-v1-0-8e80160e3c0c@kernel.org> <9c99197dde2eafa55a1b55dce2f0d4d02c77340a.camel@kernel.org> <176877859306.16766.15009835437490907207@noble.neil.brown.name> <176880736225.16766.4203157325432990313@noble.neil.brown.name> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <176880736225.16766.4203157325432990313@noble.neil.brown.name> X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Mon, Jan 19, 2026 at 06:22:42PM +1100, NeilBrown wrote: > We are calling it for it's only use. If there was ever another use, we > could change the name if that made sense. It is not a public name, it > is easy to change. No, it is not the only use. This flag needs to be propagate to userspace through statx or the file attrs. As I said before there is plenty of code in userspace that does rely on the traditional file handle semantics. > > Remember nfs also support volatile file handles, and other applications > > might rely on this (I know of quite a few user space applications that > > do, but they are kinda hardwired to xfs anyway). > > The NFS protocol supports volatile file handles. knfsd does not. > So maybe > EXPORT_OP_NOT_NFSD_COMPATIBLE > might be better. or EXPORT_OP_NOT_LINUX_NFSD_COMPATIBLE. > (I prefer opt-out rather than opt-in because nfsd export was the > original purpose of export_operations, but it isn't something > I would fight for) Again, stop trying to name things of the initial user. Flag needs to describe smenatics, not users. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/