o Document m_getcl(9).

Submitted by:	Gleb Smirnoff
MFC after:	2 weeks

1 files changed, 17 insertions, 0 deletions

diff --git a/share/man/man9/mbuf.9 b/share/man/man9/mbuf.9
index 7c0eec8..67f48bf 100644
--- a/share/man/man9/mbuf.9
+++ b/share/man/man9/mbuf.9
@@ -77,6 +77,8 @@
 .Ft struct mbuf *
 .Fn m_getm "struct mbuf *orig" "int len" "int how" "int type"
 .Ft struct mbuf *
+.Fn m_getcl "int how" "short type" "int flags"
+.Ft struct mbuf *
 .Fn m_getclr "int how" "int type"
 .Ft struct mbuf *
 .Fn m_gethdr "int how" "int type"
@@ -530,6 +532,21 @@ allocation.
 A function version of
 .Fn MGETHDR
 for non-critical paths.
+.It Fn m_getcl how type flags
+Fetch an
+.Vt mbuf
+with a
+.Vt mbuf cluster
+attached to it.
+If one of the allocations fails, the entire allocation fails.
+This routine is the preferred way of fetching both the
+.Vt mbuf
+and
+.Vt mbuf cluster
+together, as it avoids having to unlock/relock between allocations.
+Returns
+.Dv NULL
+on failure.
 .It Fn m_getclr how type
 Allocate an
 .Vt mbuf