Messages in this thread | | | Date | Wed, 5 Mar 2008 01:37:22 +0100 | From | Nick Piggin <> | Subject | Re: [PATCH] mmu notifiers #v8 |
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On Mon, Mar 03, 2008 at 11:01:22AM -0800, Christoph Lameter wrote: > On Mon, 3 Mar 2008, Nick Piggin wrote: > > > I'm still not completely happy with this. I had a very quick look > > at the GRU driver, but I don't see why it can't be implemented > > more like the regular TLB model, and have TLB insertions depend on > > the linux pte, and do invalidates _after_ restricting permissions > > to the pte. > > > > Ie. I'd still like to get rid of invalidate_range_begin, and get > > rid of invalidate calls from places where permissions are relaxed. > > Isnt this more a job for paravirt ops if it is so tightly bound to page > tables? Are we not adding another similar API?
Um, it's bound to the *Linux page tables*, yes. And I have no idea why you would use the paravirt ops for this.
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