Index: sys/compat/linuxkpi/common/include/linux/interrupt.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/interrupt.h
+++ sys/compat/linuxkpi/common/include/linux/interrupt.h
@@ -202,6 +202,13 @@
 
 #define	tasklet_hi_schedule(t)	tasklet_schedule(t)
 
+static inline void
+tasklet_disable_nosync(struct tasklet_struct *t)
+{
+	atomic_inc(&t->count);
+	smp_mb__after_atomic();
+}
+
 extern void tasklet_schedule(struct tasklet_struct *);
 extern void tasklet_kill(struct tasklet_struct *);
 extern void tasklet_init(struct tasklet_struct *, tasklet_func_t *,