D60688.1794744357.diff
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	diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c
	--- a/sys/kern/uipc_mbuf.c
	+++ b/sys/kern/uipc_mbuf.c
	@@ -926,7 +926,7 @@
	* contiguous region in an attempt to avoid being called next time.
	*/
	struct mbuf *
	-m_pullup(struct mbuf *n, int len)
	+__m_pullup(struct mbuf *n, int len)
	{
	struct mbuf *m;
	int count;
	diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h
	--- a/sys/sys/mbuf.h
	+++ b/sys/sys/mbuf.h
	@@ -862,7 +862,7 @@
	struct mbuf m_prepend(struct mbuf , int, int);
	void m_print(const struct mbuf *, int);
	struct mbuf m_pulldown(struct mbuf , int, int, int *);
	-struct mbuf m_pullup(struct mbuf , int);
	+struct mbuf __m_pullup(struct mbuf , int);
	int m_sanity(struct mbuf *, int);
	struct mbuf m_split(struct mbuf , int, int);
	struct mbuf m_uiotombuf(struct uio , int, int, int, int);
	@@ -877,6 +877,15 @@
	void m_rcvif_serialize(struct mbuf *);
	struct ifnet m_rcvif_restore(struct mbuf );

	+static __inline struct mbuf *
	+m_pullup(struct mbuf *m, int len)
	+{
	+ if (__predict_false(m->m_len < len))
	+ return (__m_pullup(m, len));
	+ else
	+ return (m);
	+}
	+
	static __inline int
	m_gettype(int size)
	{