linux-kernel - Re: [PATCH v4 0/3] fs: allow statmount to fetch the fs_subtype and sb

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Message-ID: <CAJfpegvTEGABRfk0fAu4tv0qD9a2sAmFrmuDqzvdkR-JXGcdXg@mail.gmail.com>
Date: Wed, 13 Nov 2024 14:08:11 +0100
From: Miklos Szeredi <miklos@...redi.hu>
To: Karel Zak <kzak@...hat.com>
Cc: Christian Brauner <brauner@...nel.org>, Jeff Layton <jlayton@...nel.org>, Ian Kent <raven@...maw.net>, 
	Josef Bacik <josef@...icpanda.com>, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Alexander Viro <viro@...iv.linux.org.uk>, 
	Jan Kara <jack@...e.cz>, Amir Goldstein <amir73il@...il.com>
Subject: Re: [PATCH v4 0/3] fs: allow statmount to fetch the fs_subtype and sb_source

On Wed, 13 Nov 2024 at 12:28, Karel Zak <kzak@...hat.com> wrote:

> Next on the wish list is a notification (a file descriptor that can be
> used in epoll) that returns a 64-bit ID when there is a change in the
> mount node. This will enable us to enhance systemd so that it does not
> have to read the entire mount table after every change.

IIRC Amir said he'd take this up (this was at LSFMM 2023).  I'm also
happy to take part in the design and implementation.

Thanks,
Miklos