| title: | Re MMU notifiers review and some proposals |
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On Wed, Jul 30, 2008 at 10:42:12AM -0500, Christoph Lameter wrote:
Andrea Arcangeli wrote:
I think the current implementation is fine for the long run, it can
provide the fastest performance when armed, and each invalidate either
requires IPIs or it may may need to access the southbridge, so when
freeing large areas of memory its good being able to do a single
invalidate.
Right. A couple of months ago we had this discussion and agreed that the begin / end was the way to go. I still support that decision.
Thats OK. We dont have to make decisions just by people supporting one
way or the other, because Ill come up with some competing patches and
if they turn out to be significantly simpler to the core VM without having
a significant negative impact on performance then naturally everybody should
be happy to merge them, so nobody has to argue with handwaving.
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