Hello.

Andrew Morton wrote:
> This is utterly obscure - it needs a comment so that readers know what that
> "- 8" is doing there.
Yes, that was only an RFC thing.
And now since there were not too much
of an FC, I prepared the "polished"
version. But apparently you already
released -mm3:)

Well, at least you can still apply the
comments if you feel like that. Here
they are.

Signed-off-by: Stas Sergeev <stsp@aknet.ru>