Commit a1c6d543 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Christian Brauner
Browse files

pid: kill the obsolete PIDTYPE_PID code in transfer_pid() 



transfer_pid() must be never called with pid == PIDTYPE_PID,
new_leader->thread_pid should be changed by exchange_tids().

Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20240202131255.GA26025@redhat.com


Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 90f92b68

kernel/pid.c

+1 −2
Original line number Diff line number Diff line
@@ -396,8 +396,7 @@ void exchange_tids(struct task_struct *left, struct task_struct *right) 
void transfer_pid(struct task_struct *old, struct task_struct *new,

			   enum pid_type type)

{

	if (type == PIDTYPE_PID)

		new->thread_pid = old->thread_pid;

	WARN_ON_ONCE(type == PIDTYPE_PID);

	hlist_replace_rcu(&old->pid_links[type], &new->pid_links[type]);

}