函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\sched.h Create Date:2022-07-27 06:58:32
Last Modify:2021-07-28 10:30:23 Copyright©Brick
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函数名称：pid_alive - check that a task structure is not stale*@p: Task structure to be checked.* Test if a process is not yet dead (at most zombie state)* If pid_alive fails, then pointers within the task structure* can be stale and must not be dereferenced.

函数原型：static inline int pid_alive(const struct task_struct *p)

返回类型：int

参数：

类型参数名称
const struct task_struct *p
1356  返回: PID/PID hash table linkage. != NULL
调用者
名称描述
__task_pid_nr_ns
sched_show_task
rcu_lock_breakTo avoid extending the RCU grace period for an unbounded amount of time,* periodically exit the critical section and enter a new one.* For preemptible RCU it is sufficient to call rcu_read_unlock in order* to exit the grace period
bacct_add_tskll in basic accounting fields
perf_event_pid_type
yama_ptrace_access_checkyama_ptrace_access_check - validate PTRACE_ATTACH calls*@child: task that current task is attempting to ptrace*@mode: ptrace attach mode* Returns 0 if following the ptrace is allowed, -ve on error.
task_ppid_nr_ns