rcu/exp: Fix check for idle context in rcu_exp_handler

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For PREEMPT_RCU, the rcu_exp_handler() function checks
whether the current CPU is in idle, by calling
rcu_dynticks_curr_cpu_in_eqs(). However, rcu_exp_handler()
is called in IPI handler context. So, it should be checking
the idle context using rcu_is_cpu_rrupt_from_idle(). Fix this
by using rcu_is_cpu_rrupt_from_idle() instead of
rcu_dynticks_curr_cpu_in_eqs(). Non-preempt configuration
already uses the correct check.

Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Neeraj Upadhyay 2021-12-13 11:40:24 +05:30 • committed by Paul E. McKenney

parent da123016ca

commit 4d266c247d

1 changed files with 1 additions and 1 deletions

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kernel/rcu/tree_exp.h

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