K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2005-03-30T05:40:02.000000Z
K 7
svn:log
V 440
Eliminate (now) unnecessary acquisition and release of the global page
queues lock in vm_object_backing_scan().  Updates to the page's PG_BUSY
flag and busy field are synchronized by the containing object's lock.

Testing the page's hold_count and wire_count in vm_object_backing_scan()'s
OBSC_COLLAPSE_NOWAIT case is unnecessary.  There is no reason why the held
or wired pages cannot be migrated to the shadow object.

Reviewed by: tegge

END