Function report |
Source Code:kernel\rcu\tree.c |
Create Date:2022-07-28 10:25:39 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name: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
Proto:static __always_inline void rcu_nmi_exit_common(bool irq)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
bool | irq |
638 | rdp = this_cpu_ptr( & rcu_data) |
645 | WARN_ON_ONCE(Track irq/NMI nesting level. <= 0) |
646 | WARN_ON_ONCE(Is the current CPU in an extended quiescent state?* No ordering, as we are sampling CPU-local information.) |
652 | If Track irq/NMI nesting level. != 1 Then |
657 | Return |
662 | WRITE_ONCE(Track irq/NMI nesting level. , 0) |
664 | If irq Then rcu_prepare_for_idle() |
669 | If irq Then rcu_dynticks_task_enter() |
Name | Describe |
---|---|
rcu_nmi_exit | _nmi_exit - inform RCU of exit from NMI context* If you add or remove a call to rcu_nmi_exit(), be sure to test* with CONFIG_RCU_EQS_DEBUG=y. |
rcu_irq_exit | _irq_exit - inform RCU that current CPU is exiting irq towards idle* Exit from an interrupt handler, which might possibly result in entering* idle mode, in other words, leaving the mode in which read-side critical* sections can occur |
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