ext_prevref       111 sys/mbuf.h     	struct mbuf *ext_prevref;
ext_prevref       242 sys/mbuf.h     		(m)->m_ext.ext_nextref->m_ext.ext_prevref =		\
ext_prevref       243 sys/mbuf.h     			(m)->m_ext.ext_prevref;				\
ext_prevref       244 sys/mbuf.h     		(m)->m_ext.ext_prevref->m_ext.ext_nextref =		\
ext_prevref       250 sys/mbuf.h     		(n)->m_ext.ext_prevref = (o);				\
ext_prevref       252 sys/mbuf.h     		(n)->m_ext.ext_nextref->m_ext.ext_prevref = (n);	\
ext_prevref       256 sys/mbuf.h     		(m)->m_ext.ext_prevref = (m);				\