函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\rcu.h Create Date:2022-07-27 11:17:52
Last Modify:2022-05-19 07:39:19 Copyright©Brick
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函数名称：Given a snapshot from rcu_seq_snap(), determine whether or not a* full update-side operation has occurred.

函数原型：static inline bool rcu_seq_done(unsigned long *sp, unsigned long s)

返回类型：bool

参数：

类型参数名称
unsigned long *sp
unsigned longs
117  返回:ULONG_CMP_GE(READ_ONCE( * sp), s)
调用者
名称描述
srcu_funnel_exp_startFunnel-locking scheme to scalably mediate many concurrent expedited* grace-period requests. This function is invoked for the first known* expedited request for a grace period that has already been requested,* but without expediting
srcu_funnel_gp_startFunnel-locking scheme to scalably mediate many concurrent grace-period* requests
srcu_barriersrcu_barrier - Wait until all in-flight call_srcu() callbacks complete.*@ssp: srcu_struct on which to wait for in-flight callbacks.
cond_synchronize_rcud_synchronize_rcu - Conditionally wait for an RCU grace period*@oldstate: return value from earlier call to get_state_synchronize_rcu()* If a full RCU grace period has elapsed since the earlier call to* get_state_synchronize_rcu(), just return
rcu_barrier_barrier - Wait until all in-flight call_rcu() callbacks complete
rcu_exp_gp_seq_doneGiven a counter snapshot from rcu_exp_gp_seq_snap(), return true* if a full expedited grace period has elapsed since that snapshot* was taken.