Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\tree_exp.h Create Date:2022-07-28 10:28:15
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:Reset the ->expmask values in the rcu_node tree in preparation for* a new expedited grace period.

Proto:static void __maybe_unused sync_exp_reset_tree(void)

Type:void

Parameter:Nothing

133  Reset the ->expmaskinit values in the rcu_node tree to reflect any* recent CPU-online activity. Note that these masks are not cleared* when CPUs go offline, so they reflect the union of all CPUs that have* ever been online
134  rcu_for_each_node_breadth_first(rnp)
135  raw_spin_lock_irqsave_rcu_node(rnp, flags)
136  WARN_ON_ONCE(CPUs or groups that need to check in )
137  WRITE_ONCE(CPUs or groups that need to check in , complete. )
138  raw_spin_unlock_irqrestore_rcu_node(rnp, flags)