K 10 svn:author V 3 alc K 8 svn:date V 27 2003-10-20T18:24:38.000000Z K 7 svn:log V 182 Initialize the buf's b_object in pbgetvp(). Clear it in pbrelvp(). (This facilitates synchronization of the vm page's valid field using the vm object's lock.) Suggested by: tegge END