Messages in this thread | | | Date | Fri, 29 Feb 2008 01:55:30 +0100 | From | Andrea Arcangeli <> | Subject | Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges |
| |
On Thu, Feb 28, 2008 at 10:43:54AM -0800, Christoph Lameter wrote: > What about invalidate_page()?
That would just spin waiting an ack (just like the smp-tlb-flushing invalidates in numa already does).
Thinking more about this, we could also parallelize it with an invalidate_page_before/end. If it takes 1usec to flush remotely, scheduling would be overkill, but spending 1usec in a while loop isn't nice if we can parallelize that 1usec with the ipi-tlb-flush. Not sure if it makes sense... it certainly would be quick to add it (especially thanks to _notify ;).
| |