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 11:25:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Return true if the CPU corresponding to the specified rcu_data* structure has spent some time in an extended quiescent state since* rcu_dynticks_snap() returned the specified snapshot.

函数原型:static bool rcu_dynticks_in_eqs_since(struct rcu_data *rdp, int snap)

返回类型:bool

参数:

类型参数名称
struct rcu_data *rdp
intsnap
331  返回:snap不等于Snapshot the ->dynticks counter with full ordering so as to allow* stable comparison of this counter with past and future snapshots.
调用者
名称描述
rcu_implicit_dynticks_qsReturn true if the specified CPU has passed through a quiescent* state by virtue of being in or having passed through an dynticks* idle state since the last call to dyntick_save_progress_counter()* for this same CPU, or by virtue of having been offline.
sync_rcu_exp_select_node_cpusSelect the CPUs within the specified rcu_node that the upcoming* expedited grace period needs to wait for.