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/linux/Documentation/RCU/Design/Expedited-Grace-Periods/
H A DExpedited-Grace-Periods.rst56 is handled by ``rcu_exp_handler()``.
58 However, because this is preemptible RCU, ``rcu_exp_handler()``
127 ``rcu_exp_handler()`` can do is to check for idle, on the off-chance
129 then ``rcu_exp_handler()`` reports the quiescent state.
232 the idle loop, then ``rcu_exp_handler()`` invokes
236 (``rcu_exp_handler()``), but because RCU read-side critical sections are
237 not permitted within the idle loop, if ``rcu_exp_handler()`` sees that
239 possibly be idle. Otherwise, ``rcu_exp_handler()`` invokes