函数逻辑报告 |
Source Code:kernel\rcu\tree.c |
Create Date:2022-07-27 11:25:33 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| 首页 | 函数Tree |
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函数名称：Is the current CPU in an extended quiescent state?* No ordering, as we are sampling CPU-local information.
函数原型：bool rcu_dynticks_curr_cpu_in_eqs(void)
返回类型：bool
参数：无
| 299 | rdp等于this_cpu_ptr( & rcu_data) |
| 301 | 返回:非atomic_read( & Even value for idle, else odd. )按位与RCU_DYNTICK_CTRL_CTR的值 |
| 名称 | 描述 |
|---|---|
| rcu_nmi_exit_common | If we are returning from the outermost NMI handler that interrupted an* RCU-idle period, update rdp->dynticks and rdp->dynticks_nmi_nesting* to let the RCU grace-period handling know that the CPU is back to* being RCU-idle |
| rcu_nmi_enter_common | _nmi_enter_common - inform RCU of entry to NMI context*@irq: Is this call from rcu_irq_enter?* If the CPU was idle from RCU's viewpoint, update rdp->dynticks and* rdp->dynticks_nmi_nesting to let the RCU grace-period handling know* that the CPU is active |
| rcu_is_watching | _is_watching - see if RCU thinks that the current CPU is not idle* Return true if RCU is watching the running CPU, which means that this* CPU can safely enter RCU read-side critical sections |
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