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SubjectRe: [PATCH 01 of 12] Core of mmu notifiers
On Wed, Apr 23, 2008 at 11:19:26AM -0700, Christoph Lameter wrote:
> If unregister fails then the driver should not detach from the address
> space immediately but wait until -->release is called. That may be
> a possible solution. It will be rare that the unregister fails.

This is the current idea, exactly. Unless we find a way to replace
mm_lock with something else, I don't see a way to make
mmu_notifier_unregister reliable without wasting ram.


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