linux-kernel - Re: [PATCH 13/17] watch_queue: Implement mount topology and attribute change notifications [ver #5]

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Message-ID: <1283475.1596449889@warthog.procyon.org.uk>
Date:   Mon, 03 Aug 2020 11:18:09 +0100
From:   David Howells <dhowells@...hat.com>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     dhowells@...hat.com, Ian Kent <raven@...maw.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>,
        Christian Brauner <christian@...uner.io>, andres@...razel.de,
        Jeff Layton <jlayton@...hat.com>, dray@...hat.com,
        Karel Zak <kzak@...hat.com>, keyrings@...r.kernel.org,
        Linux API <linux-api@...r.kernel.org>,
        linux-fsdevel@...r.kernel.org,
        LSM <linux-security-module@...r.kernel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 13/17] watch_queue: Implement mount topology and attribute change notifications [ver #5]

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

> > fsinfo() then allows you to retrieve them by path or by mount ID.
> 
> Shouldn't the notification interface provide the unique ID?

Hmmm...  If I'm going to do that, I have to put the fsinfo-core branch first
otherwise you can't actually retrieve the unique ID - and thus won't be able
to make sense of the notification record.  Such a rearrangement might make
sense anyway since Ian and Karel have been primarily concentrating on fsinfo
and only more recently started adding notification support.

David