Re: [patch 2/4] mmu_notifier: Callbacks to invalidate address ranges

[Christoph Lameter]

On Fri, 1 Feb 2008, Robin Holt wrote:

> We are getting this callout when we transition the pte from a read-only
> to read-write.  Jack and I can not see a reason we would need that
> callout.  It is causing problems for xpmem in that a write fault goes
> to get_user_pages which gets back to do_wp_page that does the callout.

Right. You placed it there in the first place. So we can drop the code 
from do_wp_page?

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