vm changes from linux-2.6.14 to linux-2.6.15

[Hugh Dickins]

On Thu, 10 May 2007, David Miller wrote:
> > > We never seemed to reach completion here?
> > 
> > Well, I'm waiting for other people comments too... as I said earlier,
> > I'm not too fan of burrying the update_mmu_cache() inside
> > ptep_set_access_flags(), but perhaps we could remove the whole logic of
> > reading the old PTE & comparing it, and instead have
> > ptep_set_access_flags() do that locally and return to the caller wether
> > a change occured that requires update_mmu_cache() to be called.
> > 
> > That way, archs who don't actually need update_mmu_cache() under some
> > circumstances will be able to return 0 there.
> > 
> > What do you guys thing ?
> 
> I think that's a good idea.

I agree.

Hugh