MUTEX_FLAG_PICKUP
MUTEX_WARN_ON(flags & (MUTEX_FLAG_HANDOFF | MUTEX_FLAG_PICKUP));
MUTEX_WARN_ON(owner & MUTEX_FLAG_PICKUP);
new |= MUTEX_FLAG_PICKUP;
if (flags & MUTEX_FLAG_PICKUP) {
MUTEX_WARN_ON(owner & MUTEX_FLAG_PICKUP);
flags &= ~MUTEX_FLAG_PICKUP;