K 10 svn:author V 3 alc K 8 svn:date V 27 2004-10-17T22:33:40.000000Z K 7 svn:log V 228 Assert that the containing object is locked in vm_page_io_start() and vm_page_io_finish(). The motivation being to transition synchronization of the vm_page's busy field from the global page queues lock to the per-object lock. END