tree f8fbd7a547108972415b53cab77755b599422275
parent e2fd9d35847d1936398d44c4df68dceb3d7f64e7
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1452558569 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1459456447 -0700

rcu: Force boolean subscript for expedited stall warnings

The cpu_online() function can return values other than 0 and 1, which
can result in subscript overflow when applied to a two-element array.
This commit allows for this behavior by using "!!" on the return value
from cpu_online() when used as a subscript.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>