diff options
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 15b19baaade5..7e7df5deadf9 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -3785,19 +3785,9 @@ void synchronize_sched_expedited(void) /* Take a snapshot of the sequence number. */ s = rcu_exp_gp_seq_snap(rsp); - if (!try_get_online_cpus()) { - /* CPU hotplug operation in flight, fall back to normal GP. */ - wait_rcu_gp(call_rcu_sched); - atomic_long_inc(&rsp->expedited_normal); - return; - } - WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id())); - rnp = exp_funnel_lock(rsp, s); - if (rnp == NULL) { - put_online_cpus(); + if (rnp == NULL) return; /* Someone else did our work for us. */ - } rcu_exp_gp_seq_start(rsp); sync_sched_exp_select_cpus(rsp); @@ -3805,8 +3795,6 @@ void synchronize_sched_expedited(void) rcu_exp_gp_seq_end(rsp); mutex_unlock(&rnp->exp_funnel_mutex); - - put_online_cpus(); } EXPORT_SYMBOL_GPL(synchronize_sched_expedited); |