linux-kernel - Re: [PATCH 20/39] afs: simplify procfs code

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Message-ID: <19809.1525099030@warthog.procyon.org.uk>
Date:   Mon, 30 Apr 2018 15:37:10 +0100
From:   David Howells <dhowells@...hat.com>
To:     Christoph Hellwig <hch@....de>
Cc:     dhowells@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-afs@...ts.infradead.org,
        Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: [PATCH 20/39] afs: simplify procfs code

Christoph Hellwig <hch@....de> wrote:

> I don't think you should need any of these.  seq_file_net or
> seq_file_single_net will return you the net_ns based on a struct
> seq_file.  And even from your write routines you can reach the
> seq_file in file->private pretty easily.

You've taken away things like single_open/release_net() which means I can't
supply my own fops and use the proc_net stuff.  I wonder if I should add a
write op to struct proc_dir_entry.

David