On 11/14/2012 03:50 AM, Ingo Molnar wrote:
From: Peter Zijlstra <a.p.zijls...@chello.nl>
By accounting against the present PTEs, scanning speed reflects the
actual present (mapped) memory.
For this we modify mm/mprotect.c::change_protection() to return the
number of ptes modified. (No change in functionality.)
We need to figure out what we actually want here.
Do we want to mark 256MB as non-present, or do we want to leave
behind 256MB of non-present (NUMA) memory? :)
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