函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\tree.c Create Date:2022-07-27 11:25:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Return true if the snapshot returned from rcu_dynticks_snap()* indicates that RCU is in an extended quiescent state.

函数原型：static bool rcu_dynticks_in_eqs(int snap)

返回类型：bool

参数：

类型参数名称
intsnap
321  返回:非snap按位与RCU_DYNTICK_CTRL_CTR的值
调用者
名称描述
dyntick_save_progress_counterSnapshot the specified CPU's dynticks counter so that we can later* credit them with an implicit quiescent state. Return 1 if this CPU* is in dynticks idle mode, which is an extended quiescent state.
rcu_boot_init_percpu_dataDo boot-time initialization of a CPU's per-CPU RCU data.
sync_rcu_exp_select_node_cpusSelect the CPUs within the specified rcu_node that the upcoming* expedited grace period needs to wait for.