forget_original_parent

Name:This does two things:* A. Make init inherit all the child processes* B. 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)

Proto:static void forget_original_parent(struct task_struct *father, struct list_head *dead)

Type:void

Parameter:

Type	Parameter	Name
struct task_struct *	father
struct list_head *	dead

611

If Value for the false possibility is greater at compile time(!list_empty - tests whether a list is empty*@head: the list to test.) Then exit_ptrace(father, dead)

615

reaper = find_child_reaper(father, dead)

616

If list_empty - tests whether a list is empty*@head: the list to test. Then Return

619

reaper = When we die, we re-parent all our children, and try to:* 1

621

for_each_thread(p, t)

622

Real parent process: = reaper

623

BUG_ON((!ptrace) != ( Recipient of SIGCHLD, wait4() reports: == father))

624

If Value is more likely to compile time(!ptrace) Then Recipient of SIGCHLD, wait4() reports: = Real parent process:

626

If The signal sent when the parent dies Then group_send_sig_info(The signal sent when the parent dies, These can be the second arg to send_sig_info/send_group_sig_info. , t, PIDTYPE_TGID)

635

If Not same_thread_group(reaper, father) Then Any that need to be release_task'd are put on the @dead list.

638

list_splice_tail_init - join two lists and reinitialise the emptied list*@list: the new list to add.*@head: the place to add it in the first list.* Each of the lists is a queue.* The list at @list is reinitialised

**Caller**
Name	Describe
exit_notify	Send signals to all our closest relatives so that they know* to properly mourn us..

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