From: Christoph Hellwig <hch@infradead.org>
To: Christian Brauner <brauner@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
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Subject: Re: [PATCH 00/24] vfs: require filesystems to explicitly opt-in to lease support
Date: Wed, 14 Jan 2026 22:42:48 -0800 [thread overview]
Message-ID: <aWiMaMwI6nYGX9Bq@infradead.org> (raw)
In-Reply-To: <20260114-klarstellen-blamieren-0b7d40182800@brauner>
On Wed, Jan 14, 2026 at 04:20:13PM +0100, Christian Brauner wrote:
> > You're still think of it the wrong way. If we do have file systems
> > that break the original exportfs semantics we need to fix that, and
> > something like a "stable handles" flag will work well for that. But
> > a totally arbitrary "is exportable" flag is total nonsense.
>
> File handles can legitimately be conceptualized independently of
> exporting a filesystem. If we wanted to tear those concepts apart
> implementation wise we could.
>
> It is complete nonsense to expect the kernel to support exporting any
> arbitrary internal filesystem or to not support file handles at all.
You are going even further down the path of entirely missing the point
(or the two points by now).
If a file systems meets all technical requirements of being nfsd
exportable and the users asks for it, it is not our job to make an
arbitrary policy decision to say no.
If it does not meet the technical requirements it obviously should
not be exportable. And it seems like the spread of file handles
beyond nfs exporting created some ambiguity here, which we need to
fix.
next prev parent reply other threads:[~2026-01-15 6:43 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-08 17:12 Jeff Layton
2026-01-08 17:12 ` [PATCH 01/24] fs: add setlease to generic_ro_fops and read-only filesystem directory operations Jeff Layton
2026-01-08 17:26 ` Jan Kara
2026-01-08 17:12 ` [PATCH 02/24] affs: add setlease file operation Jeff Layton
2026-01-08 21:26 ` David Sterba
2026-01-08 17:12 ` [PATCH 03/24] btrfs: " Jeff Layton
2026-01-08 21:26 ` David Sterba
2026-01-08 17:12 ` [PATCH 04/24] erofs: " Jeff Layton
2026-01-10 1:47 ` Chao Yu
2026-01-08 17:13 ` [PATCH 05/24] ext2: " Jeff Layton
2026-01-08 17:28 ` Jan Kara
2026-01-08 17:13 ` [PATCH 06/24] ext4: " Jeff Layton
2026-01-08 17:28 ` Jan Kara
2026-01-08 17:13 ` [PATCH 07/24] exfat: " Jeff Layton
2026-01-08 22:47 ` Namjae Jeon
2026-01-08 17:13 ` [PATCH 08/24] f2fs: " Jeff Layton
2026-01-10 1:47 ` Chao Yu
2026-01-08 17:13 ` [PATCH 09/24] fat: " Jeff Layton
2026-01-08 18:12 ` OGAWA Hirofumi
2026-01-08 17:13 ` [PATCH 10/24] gfs2: add a " Jeff Layton
2026-01-08 17:13 ` [PATCH 11/24] jffs2: add " Jeff Layton
2026-01-09 8:49 ` Richard Weinberger
2026-01-08 17:13 ` [PATCH 12/24] jfs: " Jeff Layton
2026-01-08 19:46 ` Dave Kleikamp
2026-01-09 7:40 ` Richard Weinberger
2026-01-09 8:48 ` Richard Weinberger
2026-01-08 17:13 ` [PATCH 13/24] nilfs2: " Jeff Layton
2026-01-09 5:26 ` Ryusuke Konishi
2026-01-08 17:13 ` [PATCH 14/24] ntfs3: " Jeff Layton
2026-01-08 17:13 ` [PATCH 15/24] ocfs2: " Jeff Layton
2026-01-08 17:29 ` Jan Kara
2026-01-08 17:13 ` [PATCH 16/24] orangefs: " Jeff Layton
2026-01-08 17:13 ` [PATCH 17/24] overlayfs: " Jeff Layton
2026-01-08 17:13 ` [PATCH 18/24] squashfs: " Jeff Layton
2026-01-08 17:13 ` [PATCH 19/24] tmpfs: " Jeff Layton
2026-01-08 17:31 ` Jan Kara
2026-01-08 17:13 ` [PATCH 20/24] udf: " Jeff Layton
2026-01-08 17:29 ` Jan Kara
2026-01-08 17:13 ` [PATCH 21/24] ufs: " Jeff Layton
2026-01-08 17:13 ` [PATCH 22/24] xfs: " Jeff Layton
2026-01-08 17:13 ` [PATCH 23/24] filelock: default to returning -EINVAL when ->setlease operation is NULL Jeff Layton
2026-01-08 17:34 ` Jan Kara
2026-01-08 17:13 ` [PATCH 24/24] fs: remove simple_nosetlease() Jeff Layton
2026-01-08 17:34 ` Jan Kara
2026-01-08 17:40 ` [PATCH 00/24] vfs: require filesystems to explicitly opt-in to lease support Jan Kara
2026-01-08 18:56 ` Jeff Layton
2026-01-09 9:26 ` Jan Kara
2026-01-09 18:52 ` Amir Goldstein
2026-01-12 9:49 ` Christian Brauner
2026-01-12 13:34 ` Jeff Layton
2026-01-12 14:31 ` Chuck Lever
2026-01-12 14:50 ` Jeff Layton
2026-01-13 8:54 ` Christian Brauner
2026-01-13 11:03 ` Amir Goldstein
2026-01-13 11:45 ` Jeff Layton
2026-01-13 14:03 ` Chuck Lever
2026-01-13 14:27 ` Jeff Layton
2026-01-13 14:31 ` Chuck Lever
2026-01-13 15:00 ` Jeff Layton
2026-01-13 14:54 ` Christoph Hellwig
2026-01-13 17:06 ` Jeff Layton
2026-01-14 6:28 ` Christoph Hellwig
2026-01-14 9:34 ` Amir Goldstein
2026-01-14 13:06 ` Christoph Hellwig
2026-01-14 13:41 ` Jeff Layton
2026-01-14 14:14 ` Amir Goldstein
2026-01-14 14:52 ` Chuck Lever
2026-01-14 15:05 ` Christoph Hellwig
2026-01-15 8:18 ` Christian Brauner
2026-01-14 15:26 ` Christian Brauner
2026-01-14 15:20 ` Christian Brauner
2026-01-15 6:42 ` Christoph Hellwig [this message]
2026-01-15 8:14 ` Christian Brauner
2026-01-15 8:33 ` Christoph Hellwig
2026-01-14 13:39 ` David Laight
2026-01-09 6:00 ` Christoph Hellwig
2026-01-09 8:03 ` Al Viro
2026-01-12 9:56 ` Christian Brauner
2026-02-17 21:14 ` [f2fs-dev] " patchwork-bot+f2fs
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