linux-kernel - Re: [PATCH v3] debugfs: fix mount options not being applied

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Message-ID: <2025081958-scolding-spruce-696c@gregkh>
Date: Tue, 19 Aug 2025 13:18:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Christian Brauner <brauner@...nel.org>
Cc: Charalampos Mitrodimas <charmitro@...teo.net>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>,
	David Howells <dhowells@...hat.com>,
	Eric Sandeen <sandeen@...hat.com>
Subject: Re: [PATCH v3] debugfs: fix mount options not being applied

On Tue, Aug 19, 2025 at 01:11:58PM +0200, Christian Brauner wrote:
> On Sat, 16 Aug 2025 14:14:37 +0000, Charalampos Mitrodimas wrote:
> > Mount options (uid, gid, mode) are silently ignored when debugfs is
> > mounted. This is a regression introduced during the conversion to the
> > new mount API.
> > 
> > When the mount API conversion was done, the parsed options were never
> > applied to the superblock when it was reused. As a result, the mount
> > options were ignored when debugfs was mounted.
> > 
> > [...]
> 
> Applied to the vfs-6.18.misc branch of the vfs/vfs.git tree.
> Patches in the vfs-6.18.misc branch should appear in linux-next soon.
> 
> Please report any outstanding bugs that were missed during review in a
> new review to the original patch series allowing us to drop it.
> 
> It's encouraged to provide Acked-bys and Reviewed-bys even though the
> patch has now been applied. If possible patch trailers will be updated.
> 
> Note that commit hashes shown below are subject to change due to rebase,
> trailer updates or similar. If in doubt, please check the listed branch.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
> branch: vfs-6.18.misc
> 
> [1/1] debugfs: fix mount options not being applied
>       https://git.kernel.org/vfs/vfs/c/8e7e265d558e

I've also included this in the driver-core -linus branch, so it should
have been in linux-next for a few days now.  I guess both versions can't
hurt :)

thanks

greg k-h