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-rw-r--r--kernel/sys.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 47c30a20b55..5d0b44cd435 100644
--- a/kernel/sys.c
+++ b/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));
}