Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\pid.c Create Date:2022-07-28 09:28:43
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:get_task_pid

Proto:struct pid *get_task_pid(struct task_struct *task, enum pid_type type)

Type:struct pid

Parameter:

TypeParameterName
struct task_struct *task
enum pid_typetype
416  _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
417  pid = get_pid( fetch RCU-protected pointer for dereferencing( * task_pid_ptr(task, type)))
418  _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()
419  Return pid
Caller
NameDescribe
kernel_waitid
kernel_wait4