From 6cd534ef8bfe422a5a847b953d1039841509c374 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Wed, 10 Dec 2014 07:45:13 -0800
Subject: [PATCH] rcu: Don't scan root rcu_node structure for stalled tasks

Now that blocked tasks are no longer migrated to the root rcu_node
structure, there is no need to scan the root rcu_node structure for
blocked tasks stalling the current grace period.  This commit therefore
removes this scan.

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