From: Christoph Hellwig <hch@infradead.org>
To: NeilBrown <neil@brown.name>
Cc: Christoph Hellwig <hch@infradead.org>,
Christian Brauner <brauner@kernel.org>,
Pedro Falcato <pfalcato@suse.de>,
Jori Koolstra <jkoolstra@xs4all.nl>,
Jeff Layton <jlayton@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>,
Aleksa Sarai <aleksa@amutable.com>,
Amir Goldstein <amir73il@gmail.com>, Jan Kara <jack@suse.cz>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 09/14] vfs: add O_CREAT|O_DIRECTORY to open*(2)
Date: Mon, 13 Jul 2026 22:10:53 -0700 [thread overview]
Message-ID: <alXE3cOXcJm-uDNs@infradead.org> (raw)
In-Reply-To: <178397852844.3371781.6900199568039042534@noble.neil.brown.name>
On Tue, Jul 14, 2026 at 07:35:28AM +1000, NeilBrown wrote:
> So let's add OPENAT2_NEW_COMBINATION which instructs openat2() to reject
> unrecognised combinations. Old kernels will simply reject that.
> New kernels can start using previously unsupported combinations safely.
Yes. Also the name OPENAT2_NEW_COMBINATION feels a bit clunky :)
> Maybe OPENAT2_NEW_COMBINATION could just reject *everything* at first,
> then incrementally allow new combinations as they are defined.
Yes, absolutely.
next prev parent reply other threads:[~2026-07-14 5:11 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-04 16:41 [PATCH v3 00/14] vfs: add O_CREAT|O_DIRECTORY to open*(2) Jori Koolstra
2026-07-04 16:41 ` [PATCH v3 01/14] fs/namei.c: use trailing_slashes() Jori Koolstra
2026-07-06 3:56 ` NeilBrown
2026-07-06 7:29 ` David Laight
2026-07-06 20:55 ` Jori Koolstra
2026-07-07 7:42 ` David Laight
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 02/14] vfs: move create error && negative dentry case in lookup_open() up Jori Koolstra
2026-07-04 16:41 ` [PATCH v3 03/14] vfs: prepare vfs_creat|mkdir_no_perm for reuse in lookup_open() Jori Koolstra
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 04/14] vfs: call audit_inode_child() in lookup_open() on failure too Jori Koolstra
2026-07-06 5:33 ` NeilBrown
2026-07-06 21:20 ` Jori Koolstra
2026-07-06 23:02 ` NeilBrown
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 05/14] fs/namei.c: update docstring of atomic_open() Jori Koolstra
2026-07-06 5:36 ` NeilBrown
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 06/14] vfs: lookup_open(): move setting FMODE_CREATED down Jori Koolstra
2026-07-04 16:41 ` [PATCH v3 07/14] vfs: move ->create check in lookup_open() to before try_break_deleg() Jori Koolstra
2026-07-06 5:37 ` NeilBrown
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 08/14] vfs: lookup_open(): use vfs_create_no_perm() Jori Koolstra
2026-07-06 5:38 ` NeilBrown
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 09/14] vfs: add O_CREAT|O_DIRECTORY to open*(2) Jori Koolstra
2026-07-06 5:46 ` NeilBrown
2026-07-07 8:35 ` Pedro Falcato
2026-07-07 10:04 ` Christian Brauner
2026-07-07 13:04 ` Pedro Falcato
2026-07-07 13:30 ` Christian Brauner
2026-07-13 9:54 ` Christoph Hellwig
2026-07-13 21:35 ` NeilBrown
2026-07-14 5:10 ` Christoph Hellwig [this message]
2026-07-14 10:50 ` Jori Koolstra
2026-07-14 10:46 ` Jori Koolstra
2026-07-07 10:06 ` Jori Koolstra
2026-07-07 13:55 ` Pedro Falcato
2026-07-07 14:18 ` Jori Koolstra
2026-07-08 15:39 ` Pedro Falcato
2026-07-09 6:24 ` Christoph Hellwig
2026-07-09 10:51 ` Jori Koolstra
2026-07-09 14:21 ` Christian Brauner
2026-07-09 14:34 ` Jori Koolstra
2026-07-13 9:50 ` Christoph Hellwig
2026-07-07 10:51 ` Christian Brauner
2026-07-10 18:55 ` Jori Koolstra
2026-07-12 12:39 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 10/14] vfs: move O_IS_MKDIR check from lookup_open() into individual filesystems Jori Koolstra
2026-07-06 5:50 ` NeilBrown
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 11/14] vfs: refuse O_CREAT for directories through a dangling symlink Jori Koolstra
2026-07-06 5:51 ` NeilBrown
2026-07-04 16:41 ` [PATCH v3 12/14] vfs: short-circuit MAY_WRITE access for O_DIRECTORY opens Jori Koolstra
2026-07-06 5:51 ` NeilBrown
2026-07-04 16:41 ` [PATCH v3 13/14] selftest: fix headers in fclog.c Jori Koolstra
2026-07-06 5:57 ` NeilBrown
2026-07-06 21:07 ` Jori Koolstra
2026-07-07 10:51 ` Christian Brauner
2026-07-04 16:41 ` [PATCH v3 14/14] selftest: add tests for open*(O_CREAT|O_DIRECTORY) Jori Koolstra
2026-07-07 10:51 ` Christian Brauner
2026-07-07 10:51 ` [PATCH v3 00/14] vfs: add O_CREAT|O_DIRECTORY to open*(2) Christian Brauner
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