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rcu/tracing: Set disable_rcu_irq_enter on rcu_eqs_exit()

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Set disable_rcu_irq_enter on not only rcu_eqs_enter_common() but also
rcu_eqs_exit(), since rcu_eqs_exit() suffers from the same issue as was
fixed for rcu_eqs_enter_common() by commit 03ecd3f48e ("rcu/tracing:
Add rcu_disabled to denote when rcu_irq_enter() will not work").

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Masami Hiramatsu 2017-06-27 17:41:25 -07:00 committed by Paul E. McKenney
parent d8db2e86d8
commit 35fe723bda
1 changed files with 2 additions and 0 deletions
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2
kernel/rcu/tree.c
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@ -955,8 +955,10 @@ 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);
}
}