pgrp = task_pgrp(current);
else
pgrp = find_vpid(who);
+
+ read_lock(&tasklist_lock);
do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
ret = set_task_ioprio(p, ioprio);
- if (ret)
- break;
+ if (ret) {
+ read_unlock(&tasklist_lock);
+ goto out;
+ }
} while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
+ read_unlock(&tasklist_lock);
+
break;
case IOPRIO_WHO_USER:
uid = make_kuid(current_user_ns(), who);
ret = -EINVAL;
}
+out:
rcu_read_unlock();
return ret;
}