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From:   David Howells <dhowells@redhat.com>
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Cc:     dhowells@redhat.com, Miklos Szeredi <mszeredi@redhat.com>,
        Christian Brauner <christian.brauner@ubuntu.com>,
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        linux-man <linux-man@vger.kernel.org>
Subject: Re: Setting mount propagation type in new mount API
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Date:   Mon, 18 May 2020 15:30:34 +0100
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Michael Kerrisk (man-pages) <mtk.manpages@gmail.com> wrote:

> I've been looking at the new mount API (fsopen(), fsconfig(),
> fsmount(), move_mount(), etc.) and among the details that remain
> mysterious to me is this: how does one set the propagation type
> (private/shared/slave/unbindable) of a new mount and change the
> propagation type of an existing mount?

Christian said he was going to have a go at writing mount_setattr().  It's not
trivial as it has to be able to handle AT_RECURSIVE.

David