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: ceph-devel@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.. 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (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 2B4E4D37E3F for ; Wed, 14 Jan 2026 15:06:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.sourceforge.net; s=beta; h=Content-Transfer-Encoding:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Subject:In-Reply-To:MIME-Version:References:Message-ID:To:From:Date:Sender: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1WgYbbgmIXG4+9NAI3ClwquodUV7N16EltPpsXslBdI=; b=HbWDP09kiAfIOPAqeYpR+Igm95 f3V4Wx206njIA7lPpRbbHRIiT5GV/bCCzhaSxqAPOwhmIWH9i37N2+ZsxVwWfGLU/vKeZn8BJX+TN rMjw+3+b1unHmfuG9oLGmi85hMWMN+yx40oW4vQoVd6Ez+KzJDTdd4z17Fb9v1oVF8q0=; Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1vg2Rh-0006Vh-99; Wed, 14 Jan 2026 15:06:06 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1vg2Re-0006VK-Hw; Wed, 14 Jan 2026 15:06:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; 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:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=p/1eVpMenCIWXkmi+LWs4qBDeJZQRhQ1Mo2xBG1d6m0=; b=dWzQHcNMwR3K9YdvXmRNTVZgHR BtNLszibp+Vea66zgqOYfSVA4A6pGVzeFX+xoQWu0PpFK0sjE6dEYDodXKMNGo9dzcfv6CKA6F5gU E7Zp+xEY+wkbxEbWnT2M6fGTEiDcb/aF4yEnWvRSxCzJck3wmRXGK+55nAo+v0W3WQKI=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; 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:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=p/1eVpMenCIWXkmi+LWs4qBDeJZQRhQ1Mo2xBG1d6m0=; b=gTLwxr3Oua+NklGy1Vs+Qr4m0D i0iKvUqD5TVIlO0ZlTvWadH1s/1Tx3csOeAu89hUnG1TXcI4bc3/HDlw3K21SkOVohECCzuwXE0vC PfgPF/92ubh1sfVZbxgN690fm7B9vDVPpne5vSE+NryZLCNi2KgXa7SyGypqyzrvv8v0=; Received: from bombadil.infradead.org ([198.137.202.133]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1vg2Re-0003Ef-1Y; Wed, 14 Jan 2026 15:06:03 +0000 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 Message-ID: References: <20260113-mondlicht-raven-82fc4eb70e9d@brauner> MIME-Version: 1.0 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 X-Headers-End: 1vg2Re-0003Ef-1Y Subject: Re: [f2fs-dev] [PATCH 00/24] vfs: require filesystems to explicitly opt-in to lease support X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Latchesar Ionkov , Dave Kleikamp , Alexander Aring , Jan Kara , Paulo Alcantara , Sandeep Dhavale , Martin Brandenburg , Yuezhang Mo , Anders Larsen , Christian Schoenebeck , jfs-discussion@lists.sourceforge.net, linux-unionfs@vger.kernel.org, Konstantin Komarov , Chris Mason , Andreas Dilger , Chunhai Guo , Ilya Dryomov , Ronnie Sahlberg , linux-mtd@lists.infradead.org, Mike Marshall , linux-xfs@vger.kernel.org, Xiubo Li , Yue Hu , Miklos Szeredi , Richard Weinberger , Mark Fasheh , devel@lists.orangefs.org, Hugh Dickins , "Matthew Wilcox \(Oracle\)" , ntfs3@lists.linux.dev, Christoph Hellwig , Joseph Qi , linux-mm@kvack.org, Viacheslav Dubeyko , linux-btrfs@vger.kernel.org, Gao Xiang , linux-ext4@vger.kernel.org, Salah Triki , Carlos Maiolino , Dominique Martinet , Shyam Prasad N , samba-technical@lists.samba.org, linux-doc@vger.kernel.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, Tom Talpey , ocfs2-devel@lists.linux.dev, Bharath SM , linux-nilfs@vger.kernel.org, David Sterba , Alexander Viro , Baolin Wang , Jeffle Xu , Jaegeuk Kim , ceph-devel@vger.kernel.org, Eric Van Hensbergen , Ryusuke Konishi , OGAWA Hirofumi , Andreas Gruenbacher , Hans de Goede , gfs2@lists.linux.dev, Christian Brauner , linux-f2fs-devel@lists.sourceforge.net, Theodore Ts'o , Luis de Bethencourt , Nicolas Pitre , linux-erofs@lists.ozlabs.org, v9fs@lists.linux.dev, Jonathan Corbet , Jeff Layton , linux-kernel@vger.kernel.org, Namjae Jeon , Steve French , Chuck Lever , Hongbo Li , Anna Schumaker , Jan Kara , linux-fsdevel@vger.kernel.org, Phillip Lougher , Andrew Morton , Sungjong Seo , David Woodhouse , Trond Myklebust , Joel Becker Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net 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.. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel 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 E9F53D37E3E for ; Wed, 14 Jan 2026 15:05:32 +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=lsfjPraO/dfwmjIo77qI3FqGWpBIaiHhfVuf/N6Y5+8=; b=kUhayRgEUOH6p9 EQRNIW7Jbp6fGHoa4UlIvzhLi2u0u5dIZ4ZMdjO+W6vnLgfqBdOqQMMsK0fvsIxvYcTMzq15h/u0r UYDSzv4CWnVAXmiuB12veVy8g3XAPLgKItZZLgNzlVm8UPhlvZ3gVO2NO/wKf3oLzC9viMdE9jztq ZUsy1FOiy0mhsE6gVy0Gwnxd/mAcBC3ivJ5A5A930ky6XjMRn0GhidPXjXOONq3XyASN9ElPcDsGK RHKHD4xrfV0mucD4QE66t9M0dt+O0YAuM7JjGOZABX+lXTAon4W2QGHtifylsDNcMA54epTt5m+rh nCCqQjwsFwwvbiXzebMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vg2R8-00000009cMc-2QUW; Wed, 14 Jan 2026 15:05:30 +0000 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> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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 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.. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/