9f08cf0886
The "mask_ofl_ipi" is used to track which CPUs get IPIed, however in the IPI sending loop, "mask_ofl_ipi" along with another variable "mask_ofl_test" might also get modified to record which CPUs' quiesent states must be reported by the sync_rcu_exp_select_node_cpus() at the end of sync_rcu_exp_select_node_cpus(). This overlap of roles can be confusing, so this patch cleans things a little by using "mask_ofl_ipi" solely for determining which CPUs must be IPIed and "mask_ofl_test" for solely determining on behalf of which CPUs sync_rcu_exp_select_node_cpus() must report a quiscent state. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Acked-by: Marco Elver <elver@google.com>