HelenOS sources

_set_owner        109 kernel/generic/src/synch/mutex.c 	_set_owner(mtx, THREAD);
_set_owner        140 kernel/generic/src/synch/mutex.c 	_set_owner(mtx, THREAD);
_set_owner        172 kernel/generic/src/synch/mutex.c 	_set_owner(mtx, NULL);