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

From: Linus Torvalds
Date: Mon Dec 01 2008 - 15:24:03 EST

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.

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