Index: sys/sys/refcnt.h
===================================================================
RCS file: /cvs/src/sys/sys/refcnt.h,v
retrieving revision 1.3
diff -u -p -r1.3 refcnt.h
--- sys/sys/refcnt.h	23 Nov 2015 10:56:20 -0000	1.3
+++ sys/sys/refcnt.h	9 Dec 2015 10:44:32 -0000
@@ -29,6 +29,7 @@ struct refcnt {
 
 void	refcnt_init(struct refcnt *);
 void	refcnt_take(struct refcnt *);
+void	refcnt_take_n(struct refcnt *, unsigned int);
 int	refcnt_rele(struct refcnt *);
 void	refcnt_rele_wake(struct refcnt *);
 void	refcnt_finalize(struct refcnt *, const char *);
Index: sys/kern/kern_synch.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_synch.c,v
retrieving revision 1.126
diff -u -p -r1.126 kern_synch.c
--- sys/kern/kern_synch.c	23 Nov 2015 10:56:20 -0000	1.126
+++ sys/kern/kern_synch.c	9 Dec 2015 10:44:32 -0000
@@ -610,6 +610,12 @@ refcnt_take(struct refcnt *r)
 	atomic_inc_int(&r->refs);
 }
 
+void
+refcnt_take_n(struct refcnt *r, unsigned int n)
+{
+	atomic_add_int(&r->refs, n);
+}
+
 int
 refcnt_rele(struct refcnt *r)
 {
Index: share/man/man9/Makefile
===================================================================
RCS file: /cvs/src/share/man/man9/Makefile,v
retrieving revision 1.268
diff -u -p -r1.268 Makefile
--- share/man/man9/Makefile	9 Dec 2015 06:29:02 -0000	1.268
+++ share/man/man9/Makefile	9 Dec 2015 10:44:32 -0000
@@ -324,7 +324,8 @@ MLINKS+=arc4random.9 add_true_randomness
 	arc4random.9 arc4random_buf.9 \
 	arc4random.9 arc4random_uniform.9
 MLINKS+=rasops.9 rasops_init.9 rasops.9 rasops_reconfig.9
-MLINKS+=refcnt_init.9 refcnt_take.9 refcnt_init.9 refcnt_rele.9 \
+MLINKS+=refcnt_init.9 refcnt_take.9 refcnt_init.9 refcnt_take_n.9 \
+	refcnt_init.9 refcnt_rele.9 \
 	refcnt_init.9 refcnt_rele_wake.9 refcnt_init.9 refcnt_finalize.9 \
 	refcnt_init.9 REFCNT_INITIALIZER.9
 MLINKS+=rssadapt.9 ieee80211_rssadapt_choose.9 \
Index: share/man/man9/refcnt_init.9
===================================================================
RCS file: /cvs/src/share/man/man9/refcnt_init.9,v
retrieving revision 1.1
diff -u -p -r1.1 refcnt_init.9
--- share/man/man9/refcnt_init.9	11 Sep 2015 19:13:22 -0000	1.1
+++ share/man/man9/refcnt_init.9	9 Dec 2015 10:44:32 -0000
@@ -20,6 +20,7 @@
 .Sh NAME
 .Nm refcnt_init ,
 .Nm refcnt_take ,
+.Nm refcnt_take_n ,
 .Nm refcnt_rele ,
 .Nm refcnt_rele_wake ,
 .Nm refcnt_finalize ,
@@ -31,6 +32,8 @@
 .Fn "refcnt_init" "struct refcnt *r"
 .Ft void
 .Fn "refcnt_take" "struct refcnt *r"
+.Ft void
+.Fn "refcnt_take_n" "struct refcnt *r" "unsigned int n"
 .Ft int
 .Fn "refcnt_rele" "struct refcnt *r"
 .Ft void
@@ -51,6 +54,13 @@ is used to acquire a new reference.
 It is the responsibility of the caller to guarantee that it holds
 a valid reference before taking a new reference.
 .Pp
+.Fn refcnt_take_n
+is used to acquire
+.Fa n
+additional references.
+It is the responsibility of the caller to guarantee that it holds
+a valid reference before taking more references.
+.Pp
 .Fn refcnt_rele
 is used to release an existing reference.
 .Pp
@@ -73,6 +83,7 @@ initialises a declaration of a refcnt to
 .Sh CONTEXT
 .Fn refcnt_init ,
 .Fn refcnt_take ,
+.Fn refcnt_take_n ,
 .Fn refcnt_rele ,
 and
 .Fn refcnt_rele_wake