{
struct dst_entry *old;
- dst_hold(dst);
- old = xchg(&sk->sk_rx_dst, dst);
- dst_release(old);
+ if (dst_hold_safe(dst)) {
+ old = xchg(&sk->sk_rx_dst, dst);
+ dst_release(old);
+ }
}
/*
if (dst)
dst = dst_check(dst, 0);
if (dst) {
- /* DST_NOCACHE can not be used without taking a reference */
- if (dst->flags & DST_NOCACHE) {
- if (likely(atomic_inc_not_zero(&dst->__refcnt)))
- skb_dst_set(skb, dst);
- } else {
- skb_dst_set_noref(skb, dst);
- }
+ /* set noref for now.
+ * any place which wants to hold dst has to call
+ * dst_hold_safe()
+ */
+ skb_dst_set_noref(skb, dst);
}
}