rcu_report_unblock_qs

函数名称：Record a quiescent state for all tasks that were previously queued* on the specified rcu_node structure and that were blocking the current* RCU grace period

函数原型：static void __maybe_unused rcu_report_unblock_qs_rnp(struct rcu_node *rnp, unsigned long flags)__releases(rnp->lock)

返回类型：void

参数：

类型	参数	名称
struct rcu_node *	rnp
unsigned long	flags

1937

raw_lockdep_assert_held_rcu_node(rnp)

1938

如果WARN_ON_ONCE(!IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',* 0 otherwise.(CONFIG_PREEMPTION))或WARN_ON_ONCE(rcu_preempt_blocked_readers_cgp(rnp))或CPUs or groups that need to switch in 不等于0则

1941

raw_spin_unlock_irqrestore_rcu_node(rnp, flags)

1942

1945

All QSes done for this node. 等于Track rsp->rcu_gp_seq.

1946

rnp_p等于cu_node tree?

1947

如果(rnp_p == NULL)则

1952

Report a full set of quiescent states to the rcu_state data structure

1953

1957

gps等于Track rsp->rcu_gp_seq.

1958

mask等于Mask to apply to parent qsmask.

1959

raw_spin_unlock_rcu_node(rnp)

1960

Wrappers for the rcu_node::lock acquire and release(rnp_p)

1961

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