On Wed, 2007-03-07 at 11:38 +0100, Nick Piggin wrote: > > > There are real users who want these fast, though. > > > > Yeah, why don't we have a tree per nonlinear vma to find these pages? > > > > wli mentions shadow page tables.. > > We could do something more efficient, but I thought that half the point > was that they didn't carry any of this extra memory, and they could be > really fast to set up at the expense of efficiency elsewhere.
I'm failing to understand this :-( That extra memory, and apparently they don't want the inefficiency either. > I don't see it being a big deal. I doubt anybody is writing out huge > amounts of data via nonlinear mappings. Well, now they don't, but it could be done or even exploited as a DoS. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
