Re: [RESEND][PATCH] Add /proc/mempool to display mempool usage

On Mon, 1 Dec 2008, Linus Torvalds wrote:

The fact that something is documented (whether correctly or not) has 
absolutely _zero_ impact on anything at all. What makes something an ABI 
is that it's useful and available. The only way something isn't an ABI is 
by _explicitly_ making sure that it's not available even by mistake in a 
stable form for binary use.

Of course, the alternate form is to make it so _useless_ that people won't 
use it even if it's available, and I guess we do have those kinds of 
interfaces too. But we generally don't need to worry about unused and 
useless interfaces very much, so it doesn't tend to matter much.

			Linus
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