It might be hard to imagine having more than two billion callbacks queued on a single CPU's ->cblist, but someone will do it sometime. This commit therefore makes __call_rcu_nocb_wake() handle this situation by upgrading local variable "len" from "int" to "long".
Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcu/tree_plugin.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index f93603ca1672..fa511e306f4d 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -1613,7 +1613,7 @@ static void __call_rcu_nocb_wake(struct rcu_data *rdp, bool was_alldone, unsigned long flags) __releases(rdp->nocb_lock) { - int len; + long len; struct task_struct *t; // If we are being polled or there is no kthread, just leave. -- 2.17.1
