rcu: Fix TINY_RCU rcu_is_cpu_rrupt_from_idle check

The rcu_is_cpu_rrupt_from_idle() needs to allow for one interrupt level from the idle loop, but TINY_RCU checks for a call from the idle loop itself. This commit fixes this issue. Reported-by: Josh Triplett <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
kcc · Nov 13, 2012 · 351573a · 351573a
1 parent f0a0e6f
commit 351573a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
@@ -195,7 +195,7 @@ EXPORT_SYMBOL(rcu_is_cpu_idle);
  */
 int rcu_is_cpu_rrupt_from_idle(void)
 {
-	return rcu_dynticks_nesting <= 0;
+	return rcu_dynticks_nesting <= 1;
 }
 
 /*