[RFC PATCH v1 26/70] rcu, tree: _FROZEN Cleanup

[Chen, Gong]

Remove XXX_FROZEN state from rcu/tree.

Signed-off-by: Chen, Gong <gong.chen@xxxxxxxxxxxxxxx>
---
 kernel/rcu/tree.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 625d0b0..8518338 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3440,28 +3440,26 @@ static int rcu_cpu_notify(struct notifier_block *self,
 	struct rcu_state *rsp;
 
 	trace_rcu_utilization(TPS("Start CPU hotplug"));
-	switch (action) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
 		rcu_prepare_cpu(cpu);
 		rcu_prepare_kthreads(cpu);
 		break;
 	case CPU_ONLINE:
 	case CPU_DOWN_FAILED:
-		rcu_boost_kthread_setaffinity(rnp, -1);
+		if (!(action & CPU_TASKS_FROZEN))
+			rcu_boost_kthread_setaffinity(rnp, -1);
 		break;
 	case CPU_DOWN_PREPARE:
-		rcu_boost_kthread_setaffinity(rnp, cpu);
+		if (!(action & CPU_TASKS_FROZEN))
+			rcu_boost_kthread_setaffinity(rnp, cpu);
 		break;
 	case CPU_DYING:
-	case CPU_DYING_FROZEN:
 		for_each_rcu_flavor(rsp)
 			rcu_cleanup_dying_cpu(rsp);
 		break;
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
 	case CPU_UP_CANCELED:
-	case CPU_UP_CANCELED_FROZEN:
 		for_each_rcu_flavor(rsp)
 			rcu_cleanup_dead_cpu(cpu, rsp);
 		break;
-- 
2.0.0.rc2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/