randprotect: KSM: break_ksm: use the COR fault

If the KSM merge fails the PageKsm must be broken and converted back
to an Anon page, but this has to be done with the COR fault to avoid
reopening the KSM COW side channel.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
1 file changed