[ofa-general] Re: [PATCH] mmu notifiers #v7

Christoph Lameter clameter at sgi.com
Fri Feb 29 11:46:44 PST 2008


On Fri, 29 Feb 2008, Andrea Arcangeli wrote:

> On Thu, Feb 28, 2008 at 05:03:01PM -0800, Christoph Lameter wrote:
> > I thought you wanted to get rid of the sync via pte lock?
> 
> Sure. _notify is happening inside the pt lock by coincidence, to
> reduce the changes to mm/* as long as the mmu notifiers aren't
> sleep capable.

Ok if this is a coincidence then it would be better to separate the 
notifier callouts from the pte macro calls.



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