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Subject: Re: [PATCH v6 3/7] kernfs: use VFS negative dentry caching
From:   Ian Kent <raven@themaw.net>
To:     Al Viro <viro@zeniv.linux.org.uk>
Cc:     Miklos Szeredi <miklos@szeredi.hu>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Tejun Heo <tj@kernel.org>, Eric Sandeen <sandeen@sandeen.net>,
        Fox Chen <foxhlchen@gmail.com>,
        Brice Goglin <brice.goglin@gmail.com>,
        Rick Lindsley <ricklind@linux.vnet.ibm.com>,
        David Howells <dhowells@redhat.com>,
        Marcelo Tosatti <mtosatti@redhat.com>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Carlos Maiolino <cmaiolino@redhat.com>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        Kernel Mailing List <linux-kernel@vger.kernel.org>
Date:   Sun, 13 Jun 2021 09:16:53 +0800
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On Sat, 2021-06-12 at 01:48 +0000, Al Viro wrote:
> On Sat, Jun 12, 2021 at 08:47:17AM +0800, Ian Kent wrote:
> 
> > > Perhaps add a note about this being dependent on parent of a
> > > negative
> > > dentry never changing.
> > 
> > Which of course it it can change, at any time.
> 
> What?

For some reason I thought Miklos was talking about the revision
of the parent not changing but that's not what he's saying.

Ian