rcu-tasks: Make rcu_note_context_switch() unconditionally call rcu_tasks_qs()

This commit makes rcu_note_context_switch() unconditionally invoke the
rcu_tasks_qs() function, as opposed to doing so only when RCU (as opposed
to RCU Tasks Trace) urgently needs a grace period to end.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: KP Singh <kpsingh@kernel.org>

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index c8ba0fe17267c1c0b68e438616c08a00877ea409..c966d680b789e97ffc3214d90ac226f339d8bea3 100644 (file)
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -899,8 +899,8 @@ void rcu_note_context_switch(bool preempt)
        this_cpu_write(rcu_data.rcu_urgent_qs, false);
        if (unlikely(raw_cpu_read(rcu_data.rcu_need_heavy_qs)))
                rcu_momentary_dyntick_idle();
-       rcu_tasks_qs(current, preempt);
 out:
+       rcu_tasks_qs(current, preempt);
        trace_rcu_utilization(TPS("End context switch"));
 }
 EXPORT_SYMBOL_GPL(rcu_note_context_switch);