Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges

Christoph Lameter
2008-01-30T19:41:44Z

On Wed, 30 Jan 2008, Jack Steiner wrote:

> I see what you mean. I need to review to mail to see why this changed
> but in the original discussions with Christoph, the invalidate_range
> callouts were suppose to be made BEFORE the pages were put on the freelist.

Seems that we cannot rely on the invalidate_ranges for correctness at all?
We need to have invalidate_page() always. invalidate_range() is only an
optimization.