Messages in this thread | | | Date | Wed, 23 Apr 2008 20:25:06 +0200 | From | Andrea Arcangeli <> | Subject | Re: [PATCH 01 of 12] Core of mmu notifiers |
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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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