linux-kernel - Re: [RFC, PATCH] dont insert sockets/pipes dentries into dentry

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Message-ID: <20061101083811.GS29920@ftp.linux.org.uk>
Date:	Wed, 1 Nov 2006 08:38:11 +0000
From:	Al Viro <viro@....linux.org.uk>
To:	Eric Dumazet <dada1@...mosbay.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC, PATCH] dont insert sockets/pipes dentries into dentry_hashtable.

On Wed, Nov 01, 2006 at 09:21:06AM +0100, Eric Dumazet wrote:

> And " (deleted)" is correctly added to deleted files.

The hell it will.

touch a
touch b
exec 5<a
mv b a
ls -l /proc/$$/fd/5

With your patch and without it, please.

PS: getting rid of socket dentries is a bad idea with the capital "Fuck, No".
For those who want to see where does that path lead and are attracted to
trainwrecks in general I can recommend *BSD socket handling.  They have
paid quite painfully for lack of proper vnodes.  It's simply not worth
the resulting trouble.
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