diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index ff374ce..dd574d5 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -466,6 +466,20 @@
 		__tasklet_hi_schedule(t);
 }
 
+extern void __tasklet_hi_schedule_first(struct tasklet_struct *t);
+
+/*
+ * This version avoids touching any other tasklets. Needed for kmemcheck
+ * in order not to take any page faults while enqueueing this tasklet;
+ * consider VERY carefully whether you really need this or
+ * tasklet_hi_schedule()...
+ */
+static inline void tasklet_hi_schedule_first(struct tasklet_struct *t)
+{
+	if (!test_and_set_bit(TASKLET_STATE_SCHED, &t->state))
+		__tasklet_hi_schedule_first(t);
+}
+
 
 static inline void tasklet_disable_nosync(struct tasklet_struct *t)
 {
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 258885a..b41fb71 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -382,6 +382,17 @@
 
 EXPORT_SYMBOL(__tasklet_hi_schedule);
 
+void __tasklet_hi_schedule_first(struct tasklet_struct *t)
+{
+	BUG_ON(!irqs_disabled());
+
+	t->next = __get_cpu_var(tasklet_hi_vec).head;
+	__get_cpu_var(tasklet_hi_vec).head = t;
+	__raise_softirq_irqoff(HI_SOFTIRQ);
+}
+
+EXPORT_SYMBOL(__tasklet_hi_schedule_first);
+
 static void tasklet_action(struct softirq_action *a)
 {
 	struct tasklet_struct *list;