Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\tree.c Create Date:2022-07-28 10:25:43
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:_irq_enter - inform RCU that current CPU is entering irq away from idle* Enter an interrupt handler, which might possibly result in exiting* idle mode, in other words, entering the mode in which read-side critical* sections can occur

Proto:void rcu_irq_enter(void)

Type:void

Parameter:Nothing

876  lockdep_assert_irqs_disabled()
877  _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
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_enterEnter an interrupt context.
rcu_irq_enter_irqsonWrapper for rcu_irq_enter() where interrupts are enabled.* If you add or remove a call to rcu_irq_enter_irqson(), be sure to test* with CONFIG_RCU_EQS_DEBUG=y.