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-rw-r--r--kernel/rcutree_plugin.h5
-rw-r--r--kernel/rtmutex.c8
2 files changed, 0 insertions, 13 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 8cd9efe7e81..f55f10ba01f 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -1165,8 +1165,6 @@ static void rcu_initiate_boost_trace(struct rcu_node *rnp)
#endif /* #else #ifdef CONFIG_RCU_TRACE */
-static struct lock_class_key rcu_boost_class;
-
/*
* Carry out RCU priority boosting on the task indicated by ->exp_tasks
* or ->boost_tasks, advancing the pointer to the next task in the
@@ -1229,9 +1227,6 @@ static int rcu_boost(struct rcu_node *rnp)
*/
t = container_of(tb, struct task_struct, rcu_node_entry);
rt_mutex_init_proxy_locked(&mtx, t);
- /* Avoid lockdep false positives. This rt_mutex is its own thing. */
- lockdep_set_class_and_name(&mtx.wait_lock, &rcu_boost_class,
- "rcu_boost_mutex");
t->rcu_boost_mutex = &mtx;
raw_spin_unlock_irqrestore(&rnp->lock, flags);
rt_mutex_lock(&mtx); /* Side effect: boosts task t's priority. */
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
index f9d8482dd48..a242e691c99 100644
--- a/kernel/rtmutex.c
+++ b/kernel/rtmutex.c
@@ -579,7 +579,6 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
struct rt_mutex_waiter *waiter)
{
int ret = 0;
- int was_disabled;
for (;;) {
/* Try to acquire the lock: */
@@ -602,17 +601,10 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
raw_spin_unlock(&lock->wait_lock);
- was_disabled = irqs_disabled();
- if (was_disabled)
- local_irq_enable();
-
debug_rt_mutex_print_deadlock(waiter);
schedule_rt_mutex(lock);
- if (was_disabled)
- local_irq_disable();
-
raw_spin_lock(&lock->wait_lock);
set_current_state(state);
}