函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-27 14:54:41
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：perf_event_for_each

函数原型：static void perf_event_for_each(struct perf_event *event, void (*func)(struct perf_event *))

返回类型：void

参数：

类型参数名称
struct perf_event *event
void (*func
5126  ctx等于ctx
5129  lockdep_assert_held( & Protect the list of events. Locking either mutex or lock* is sufficient to ensure the list doesn't change; to change* the list you need to lock both the mutex and the spinlock.)
5131  event等于group_leader
5133  Holding the top-level event's child_mutex means that any* descendant process that has inherited this event will block* in perf_event_exit_event() if it goes to exit, thus satisfying the* task existence requirements of perf_event_enable/disable.
5134  for_each_sibling_event(sibling, event)
5135  Holding the top-level event's child_mutex means that any* descendant process that has inherited this event will block* in perf_event_exit_event() if it goes to exit, thus satisfying the* task existence requirements of perf_event_enable/disable.
调用者
名称描述
_perf_ioctl