linux-kernel - Re: [PATCH 5/5] kernfs: add exportfs operations

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Message-ID: <20170524174138.GA28155@infradead.org>
Date:   Wed, 24 May 2017 10:41:38 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Tejun Heo <tj@...nel.org>
Cc:     Christoph Hellwig <hch@...radead.org>, Shaohua Li <shli@...com>,
        linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
        viro@...iv.linux.org.uk, Kernel-team@...com
Subject: Re: [PATCH 5/5] kernfs: add exportfs operations

On Wed, May 24, 2017 at 01:39:39PM -0400, Tejun Heo wrote:
> > You can already get i_ino using statx, and i_generation using
> > FS_IOC_GETVERSION, so I'm a little lost on why you need the full
> > exportfs infrastructure.
> 
> But how do you map that back to the cgroup without scanning the cgroup
> hierarchy?

I'm totally lost on why you would do that.  So maybe you just need
to send the full patch so that reviewers get the full picture.