tasklets: new tasklet scheduling function

[linux-2.6-block.git] / include / linux / interrupt.h

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index ff374ceface08d55c889c5698cdf6bcfda753655..dd574d51bcaa8c0c88f3b2e2085f62ed07c32347 100644 (file)
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -466,6 +466,20 @@ static inline void tasklet_hi_schedule(struct tasklet_struct *t)
                __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)
 {