alc 78ade40ed1 Correct two pessimizations in pmap_extract_and_hold(). Test the PTE for
having PTE_RO set instead of PTE_D.  This avoids some unnecessary failures
by pmap_extract_and_hold() that will have to be handled by a call to
vm_fault_hold().  Testing the PTE for both being non-zero and having PTE_V
set is redundant.  The latter suffices.
2012-10-06 19:05:50 +00:00
..
2012-06-12 17:04:56 +00:00