Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

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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Name:_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

Proto:void rcu_irq_exit(void)

Type:void

Parameter:Nothing

705  lockdep_assert_irqs_disabled()
706  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
Caller
NameDescribe
kvm_async_pf_task_wait@interrupt_kernel: Is this called from a routine which interrupts the kernel* (other than user space)?
do_async_page_fault
irq_exitExit an interrupt context. Process softirqs if needed and possible:
rcu_irq_exit_irqsonWrapper for rcu_irq_exit() where interrupts are enabled.* If you add or remove a call to rcu_irq_exit_irqson(), be sure to test* with CONFIG_RCU_EQS_DEBUG=y.