Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-28 13:35:47
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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Name:ring_buffer_wakeup

Proto:static void ring_buffer_wakeup(struct perf_event *event)

Type:void

Parameter:

TypeParameterName
struct perf_event *event
5614  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
5615  rb = fetch RCU-protected pointer for dereferencing(rb)
5616  If rb Then
5617  list_for_each_entry_rcu - iterate over rcu list of given type*@pos: the type * to use as a loop cursor.*@head: the head for your list.*@member: the name of the list_head within the struct.(event, & event_list, rb_entry)
5618  wake_up_all( & waitq)
5620  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
Caller
NameDescribe
perf_event_wakeup