task_session

函数名称：task_session

函数原型：static inline struct pid *task_session(struct task_struct *task)

返回类型：struct pid

参数：

类型	参数	名称
struct task_struct *	task

**调用者**
名称	描述
copy_process	创建进程
will_become_orphaned_pgrp	Determine if a process group is "orphaned", according to the POSIX* definition in 2
kill_orphaned_pgrp	Check to see if any process groups have become orphaned as* a result of our exiting, and if they have any stopped jobs,* send them a SIGHUP and then a SIGCONT. (POSIX 3.2.2.2)
check_kill_permission	Bad permissions for sending the signal* - the caller must hold the RCU read lock
SYSCALL_DEFINE2	This needs some heavy checking
SYSCALL_DEFINE1
set_special_pids

函数逻辑报告