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From:   David Howells <dhowells@redhat.com>
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To:     Miklos Szeredi <miklos@szeredi.hu>
Cc:     dhowells@redhat.com,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Ian Kent <raven@themaw.net>, Karel Zak <kzak@redhat.com>,
        Miklos Szeredi <mszeredi@redhat.com>,
        James Bottomley <James.Bottomley@hansenpartnership.com>,
        Steven Whitehouse <swhiteho@redhat.com>,
        viro <viro@zeniv.linux.org.uk>,
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        Jann Horn <jannh@google.com>,
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        Linux API <linux-api@vger.kernel.org>,
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Subject: Re: [PATCH 00/17] VFS: Filesystem information and notifications [ver #17]
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Date:   Fri, 28 Feb 2020 16:42:28 +0000
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Miklos Szeredi <miklos@szeredi.hu> wrote:

>   children/$CHILD_ID -> ../../$CHILD_ID

This would really suck.  This bit would particularly affect rescanning time.

You also really want to read the entire child set atomically and, ideally,
include notification counters.

>  supers/$SUPER_ID/
>    type: fstype
>    source: mount source (devname)
>    options: csv of mount options

There's a lot more to fsinfo() than just this lot - and there's the
possibility that some of the values may change depending on exactly which file
you're looking at.

David