Re: [GIT PULL] core kernel fixes

[Linus Torvalds]

On Fri, 10 Jul 2009, Ingo Molnar wrote:
> > 
> > but I really migth have done soemthing wrong there. It's a simple 
> > function, but somebody needs to double-check that I haven't made 
> > it worse.
> 
> Looks correct to me.

Note, I didn't look at how 'end' works, and it really does matter if 'end' 
is an "inclusive" or "exclusive" end pointer address. So my replacement 
overlap() function was written more as a conceptual patch - I did not 
check the exact semantics of the arguments passed in.

If 'end' is exclusive, then 'b1' should be calculated as 'a1+size-1', 
because the ranges must have the same rules. And then you should use the 
'strict inequality' operators for testing the ranges.

		Linus
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