Messages in this thread | | | Date | Tue, 27 Jun 2017 18:57:43 -0400 | From | Steven Rostedt <> | Subject | Re: [BUG] ftrace: WARNING: suspicious RCU usage |
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On Wed, 28 Jun 2017 07:52:22 +0900 Masami Hiramatsu <mhiramat@kernel.org> wrote:
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c > index e354e47..442b409 100644 > --- a/kernel/rcu/tree.c > +++ b/kernel/rcu/tree.c > @@ -973,8 +973,10 @@ static void rcu_eqs_exit(bool user) > if (oldval & DYNTICK_TASK_NEST_MASK) { > rdtp->dynticks_nesting += DYNTICK_TASK_NEST_VALUE; > } else { > + __this_cpu_inc(disable_rcu_irq_enter); > rdtp->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE; > rcu_eqs_exit_common(oldval, user); > + __this_cpu_dec(disable_rcu_irq_enter); > } > } >
Looks like a good fix to me. Paul want to take this one?
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-- Steve
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