linux-kernel - Re: [PATCH v4 2/2] fcntl: introduce F_SET

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Message-ID: <20200814052801.GA10141@infradead.org>
Date:   Fri, 14 Aug 2020 06:28:01 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Pascal Bouchareine <kalou@....net>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-api@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Jeff Layton <jlayton@...chiereds.net>,
        "J. Bruce Fields" <bfields@...ldses.org>
Subject: Re: [PATCH v4 2/2] fcntl: introduce F_SET_DESCRIPTION

On Thu, Aug 13, 2020 at 08:54:53PM -0700, Pascal Bouchareine wrote:
> This command attaches a description to a file descriptor for
> troubleshooting purposes. The free string is displayed in the
> process fdinfo file for that fd /proc/pid/fdinfo/fd.
> 
> One intended usage is to allow processes to self-document sockets
> for netstat and friends to report

NAK.  There is no way we're going to bloat a criticial structure like
struct file for some vanity information like this.