diff --git a/[refs] b/[refs]
index 1bd7db1d5b40..f74b8dc866ab 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 24336eaeecea860b2a82530e07c80bc7e0558b73
+refs/heads/master: 83beaf3c6c75b36b7c9be7f555c8cf7797842cc5
diff --git a/trunk/kernel/sys.c b/trunk/kernel/sys.c
index 47c30a20b554..5d0b44cd435c 100644
--- a/trunk/kernel/sys.c
+++ b/trunk/kernel/sys.c
@@ -978,8 +978,7 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid)
 		goto out;
 
 	if (task_pgrp(p) != pgrp) {
-		detach_pid(p, PIDTYPE_PGID);
-		attach_pid(p, PIDTYPE_PGID, pgrp);
+		change_pid(p, PIDTYPE_PGID, pgrp);
 		set_task_pgrp(p, pid_nr(pgrp));
 	}