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Subject[RFC PATCH v1 26/70] rcu, tree: _FROZEN Cleanup
Date
Remove XXX_FROZEN state from rcu/tree.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
---
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


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