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From:   Miklos Szeredi <miklos@szeredi.hu>
Date:   Tue, 4 Aug 2020 11:34:15 +0200
Message-ID: <CAJfpegvM4K1PhTkDivtzWsE2g8rBUMmzniaW8Op0XY5codvu1w@mail.gmail.com>
Subject: Re: [PATCH 01/18] fsinfo: Introduce a non-repeating system-unique
 superblock ID [ver #21]
To:     David Howells <dhowells@redhat.com>
Cc:     Al Viro <viro@zeniv.linux.org.uk>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Ian Kent <raven@themaw.net>,
        Miklos Szeredi <mszeredi@redhat.com>,
        Christian Brauner <christian@brauner.io>,
        Jann Horn <jannh@google.com>,
        "Darrick J. Wong" <darrick.wong@oracle.com>,
        Karel Zak <kzak@redhat.com>, Jeff Layton <jlayton@redhat.com>,
        Linux API <linux-api@vger.kernel.org>,
        linux-fsdevel@vger.kernel.org,
        LSM <linux-security-module@vger.kernel.org>,
        linux-kernel@vger.kernel.org
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On Mon, Aug 3, 2020 at 3:37 PM David Howells <dhowells@redhat.com> wrote:
>
> Introduce an (effectively) non-repeating system-unique superblock ID that
> can be used to determine that two objects are in the same superblock
> without needing to worry about the ID changing in the meantime (as is
> possible with device IDs).
>
> The counter could also be used to tag other features, such as mount
> objects.
>
> Signed-off-by: David Howells <dhowells@redhat.com>

Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>