linux-kernel - Re: [PATCH 08/18] fsinfo: Allow mount topology and propagation info to be retrieved [ver #21]

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Date:   Wed, 05 Aug 2020 16:37:31 +0100
From:   David Howells <dhowells@...hat.com>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     dhowells@...hat.com, viro@...iv.linux.org.uk,
        torvalds@...ux-foundation.org, raven@...maw.net,
        mszeredi@...hat.com, christian@...uner.io, jannh@...gle.com,
        darrick.wong@...cle.com, kzak@...hat.com, jlayton@...hat.com,
        linux-api@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/18] fsinfo: Allow mount topology and propagation info to be retrieved [ver #21]

Miklos Szeredi <miklos@...redi.hu> wrote:

> > +	__u32	shared_group_id;	/* Shared: mount group ID */
> > +	__u32	dependent_source_id;	/* Dependent: source mount group ID */
> > +	__u32	dependent_clone_of_id;	/* Dependent: ID of mount this was cloned from */
> 
> Another set of ID's that are currently 32bit *internally* but that doesn't
> mean they will always be 32 bit.
> 
> And that last one (apart from "slave" being obfuscated)

I had "slave" in there.  It got objected to.  See
Documentation/process/coding-style.rst section 4.

> is simply incorrect.  It has nothing to do with cloning.  It's the "ID of
> the closest peer group in the propagation chain that has a representative
> mount in the current root".

You appear to be in disagreement with others that I've asked.

David