Revert "KVM: No need to retry for hva_to_pfn_remapped()"
This reverts commit 5b494aea. If unlocked==true then the vma pointer could be invalidated, so the 2nd follow_pfn() is potentially racy: we do need to get out and redo find_vma_intersection(). Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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