attilio a7497af6fd - Add a comment explaining the locking of the cached pages pool held
by vm_objects.
- Add flags for the per-object lock and free pages queue mutex lock.
  Use the newly added flags to mark the cache root within the vm_object
  structure.

Please note that other vm_object members should be marked with correct
locking but they are left for other commits.

In collabouration with:	alc

MFC after:	3 days3 days3 days
2012-06-22 18:34:11 +00:00
..
2012-06-20 23:25:47 +00:00
2012-06-20 23:25:47 +00:00