Re: [PATCH] netfilter: use per-CPU r**ursive lock {XV}

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On Monday 2009-04-27 21:46, Linus Torvalds wrote:

>Clue bat #3 [sic #4]:
>
> - if you do not understand the difference between these two things, don't 
>   then try to claim that somebody _else_ who does understand it is 
>   "deluding himself".
>
>   Analogy time: Ethernet and a modem line can both get you on the
>   internet. Now, let's say that Mr Peter Paste-Eater has heard of 
>   ethernet, and knows you can get on the internet with an ethernet 
>   connection, but he happens to use a modem line to do it.
>
>   Now, Peter Paste-Eater talks to you, and tells you he is connecting to 
>   the internet with ethernet, and proudly shows you his serial line and 
>   modem, and tells you how he uses ethernet to get onto the internet. You 
>   correct him, and tell him it's not ethernet.  He argues for several 
>   days about how he gets on the internet, and that it must thus be 
>   ethernet, and that you're obviously just "deluding yourself".
>
>Now, can you see why people react badly to you talking about "recursive 
>locks"? You're acting like Peter Paste-Eater calling his serial line 
>ethernet.

It could be worse. He could be running Ethernet over serial, e.g. L2TP.
Or his serial line is a TP cable with RJ45 plugs - consumers like
to call that Ethernet (cable) too.
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