K 10 svn:author V 3 imp K 8 svn:date V 27 2003-10-01T05:48:48.000000Z K 7 svn:log V 329 Document the implications of the callout_stop() returning 0 if the callout has finished or is in progress. Also document that the locking of the callout code for FreeBSD 5 has eliminated the 'or is in progress' clause as a possibility and that such elimination is an accident of the implementation and shouldn't be relied upon. END