D25532.diff
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	Index: head/sys/kern/kern_proc.c
	===================================================================
	--- head/sys/kern/kern_proc.c
	+++ head/sys/kern/kern_proc.c
	@@ -455,30 +455,6 @@
	return (_pfind(pid, true));
	}

	-static struct proc *
	-pfind_tid(pid_t tid)
	-{
	- struct proc *p;
	- struct thread *td;
	-
	- sx_slock(&allproc_lock);
	- FOREACH_PROC_IN_SYSTEM(p) {
	- PROC_LOCK(p);
	- if (p->p_state == PRS_NEW) {
	- PROC_UNLOCK(p);
	- continue;
	- }
	- FOREACH_THREAD_IN_PROC(p, td) {
	- if (td->td_tid == tid)
	- goto found;
	- }
	- PROC_UNLOCK(p);
	- }
	-found:
	- sx_sunlock(&allproc_lock);
	- return (p);
	-}
	-
	/*
	* Locate a process group by number.
	* The caller must hold proctree_lock.
	@@ -506,6 +482,7 @@
	pget(pid_t pid, int flags, struct proc **pp)
	{
	struct proc *p;
	+ struct thread *td1;
	int error;

	p = curproc;
	@@ -519,7 +496,9 @@
	else
	p = pfind(pid);
	} else if ((flags & PGET_NOTID) == 0) {
	- p = pfind_tid(pid);
	+ td1 = tdfind(pid, -1);
	+ if (td1 != NULL)
	+ p = td1->td_proc;
	}
	if (p == NULL)
	return (ESRCH);