On Mon, 20 Nov 2006, Francis Moreau wrote:
>
> I end up to see "open(B), close(B)" sequence when unmapping a part of
> the dumb device that I found strange. I think that "open(A') close(B)"
> can give more information to the driver and reflect that B is unmapped
> and A' is still mapped and becomes the new mapped area.
> But it's may be just me...
I think I do now get your point. But your way round doesn't really
reflect what's going on either: the range A' was already open and now
you open it again. Until there's some driver actually needing more
sophisticated treatment, let's just leave it the simple way it is.
Hugh
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