Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sched\core.c Create Date:2022-07-28 09:36:20
Last Modify:2022-05-22 13:40:38 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:Check the target process has a UID that matches the current process's:

Proto:static bool check_same_owner(struct task_struct *p)

Type:bool

Parameter:

TypeParameterName
struct task_struct *p
4754  cred = current_cred - Access the current task's subjective credentials* Access the subjective credentials of the current task. RCU-safe,* since nobody else can modify it.()
4757  _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
4758  pcred = __task_cred - Access a task's objective credentials*@task: The task to query* Access the objective credentials of a task. The caller must hold the RCU* readlock.* The result of this function should not be passed directly to get_cred();(p)
4759  match = uid_eq( effective UID of the task , effective UID of the task ) || uid_eq( effective UID of the task , real UID of the task )
4761  _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()
4762  Return match
Caller
NameDescribe
__sched_setscheduler
sched_setaffinity