linux-kernel - Re: [PATCH 0/4] exportfs: add flag to allow marking export operations as only supporting file handles

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Message-ID: <CAOQ4uxjNEDZHwyUd2k8OLYH9x4xyrsFUnSSrH0E-QnMsHoqmvw@mail.gmail.com>
Date: Sun, 1 Dec 2024 14:44:41 +0100
From: Amir Goldstein <amir73il@...il.com>
To: Christian Brauner <brauner@...nel.org>
Cc: Jeff Layton <jlayton@...nel.org>, Erin Shepherd <erin.shepherd@....eu>, 
	Chuck Lever <chuck.lever@...cle.com>, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org, 
	stable <stable@...nel.org>
Subject: Re: [PATCH 0/4] exportfs: add flag to allow marking export operations
 as only supporting file handles

On Sun, Dec 1, 2024 at 2:12 PM Christian Brauner <brauner@...nel.org> wrote:
>
> Hey,
>
> Some filesystems like kernfs and pidfs support file handles as a
> convenience to enable the use of name_to_handle_at(2) and
> open_by_handle_at(2) but don't want to and cannot be reliably exported.
> Add a flag that allows them to mark their export operations accordingly
> and make NFS check for its presence.
>
> @Amir, I'll reorder the patches such that this series comes prior to the
> pidfs file handle series. Doing it that way will mean that there's never
> a state where pidfs supports file handles while also being exportable.
> It's probably not a big deal but it's definitely cleaner. It also means
> the last patch in this series to mark pidfs as non-exportable can be
> dropped. Instead pidfs export operations will be marked as
> non-exportable in the patch that they are added in.

Yeh, looks good!

Apart from missing update to exporting.rst

Reviewed-by: Amir Goldstein <amir73il@...il.com>

Thanks,
Amir.