From mboxrd@z Thu Jan 1 00:00:00 1970 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.subspace.kernel.org (Postfix) with ESMTPS id E94C92550A3; Wed, 14 Jan 2026 15:05:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768403159; cv=none; b=c2qvk+fuUVL5eKapVnw7SZM+axGX0E39ewGrMhCoyDbk8hxm0M/CFKU9sHEeCVX1zdOcRa/OzKt564SmY3lsfb3fDaaFy67effjMfu9g93x/cERvZWAkjsBZzcuFxiI25KdirLI9LSyCzuiWKl/+5dheWiPkzFK2JOWDvZeTGC0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768403159; c=relaxed/simple; bh=FHu9QC6aUntevDtu9b89ECBHcIAGyW7+M4M/0IVXo6w=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=d5lo4y5b5xR703tUpNw6g8vwbXExavFEH1n3/uPEEu+QW79+cJYb0zowmQpvy7XudnlUswuCEdc8+lVDBFXst2x8C4alV0dB0QjFqOWGA8mVIaJ/PBVxhc73nSlm/CJWBZY+htRn3fW8xHU2A18zCJe0saA164NRy0hi9N7E1O0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=2aGkR9+G; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="2aGkR9+G" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=p/1eVpMenCIWXkmi+LWs4qBDeJZQRhQ1Mo2xBG1d6m0=; b=2aGkR9+Gq07Pqsr81YJxBM46lt pC2tFopI1k2CQN/EQyBvUMbN685on8x5U4CpdjMpkFZFWeBtSU1OM84Ciw+y3szFcelfmqTyyg3Vm y2DbB7FtxibRk5XBq6sH9x7jaP/v3yPQ2Ob6mTE3lbJs+jMPsrwoZFGtqfkkexkKI90sVyqCbvrKN zpFbi2ZET+fTj2fii5dhkiKqKWNVPeKcG3n8jccbhPTVNNeRCqGKQRlyNUdLbE0ua8zYfilMENTNi ksLGJd1DFd0SiHbXxA8bZhed6Je0ZmYu3Fr0+QZKywruGLSgXGNe8uS3svWfCZcAVQ+74djzH6mhe QKhXyQqw==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vg2Qx-00000009cKq-2YJq; Wed, 14 Jan 2026 15:05:19 +0000 Date: Wed, 14 Jan 2026 07:05:19 -0800 From: Christoph Hellwig To: Amir Goldstein Cc: Jeff Layton , Christoph Hellwig , Christian Brauner , Chuck Lever , Jan Kara , Luis de Bethencourt , Salah Triki , Nicolas Pitre , Anders Larsen , Alexander Viro , David Sterba , Chris Mason , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Chunhai Guo , Jan Kara , Theodore Ts'o , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , David Woodhouse , Richard Weinberger , Dave Kleikamp , Ryusuke Konishi , Viacheslav Dubeyko , Konstantin Komarov , Mark Fasheh , Joel Becker , Joseph Qi , Mike Marshall , Martin Brandenburg , Miklos Szeredi , Phillip Lougher , Carlos Maiolino , Hugh Dickins , Baolin Wang , Andrew Morton , Namjae Jeon , Sungjong Seo , Yuezhang Mo , Alexander Aring , Andreas Gruenbacher , Jonathan Corbet , "Matthew Wilcox (Oracle)" , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Xiubo Li , Ilya Dryomov , Trond Myklebust , Anna Schumaker , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Bharath SM , Hans de Goede , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, devel@lists.orangefs.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, gfs2@lists.linux.dev, linux-doc@vger.kernel.org, v9fs@lists.linux.dev, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org Subject: Re: [PATCH 00/24] vfs: require filesystems to explicitly opt-in to lease support Message-ID: References: <20260113-mondlicht-raven-82fc4eb70e9d@brauner> Precedence: bulk X-Mailing-List: linux-fsdevel@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: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Jan 14, 2026 at 03:14:13PM +0100, Amir Goldstein wrote: > Very well then. > How about EXPORT_OP_PERSISTENT_HANDLES? Sure. > > The problem there is that we very much do want to keep tmpfs > > exportable, but it doesn't have stable handles (per-se). > > Thinking out loud - > It would be misguided to declare tmpfs as > EXPORT_OP_PERSISTENT_HANDLES > and regressing exports of tmpfs will surely not go unnoticed. tmpfs handles are stable. It's the tmpfs files that don't survive an unmount or reboot..