Re: [PATCH][IPV6] keeping dst refcnt correctly with using xfrm

["David S. Miller" <davem@xxxxxxxxxx>]

   From: Kazunori Miyazawa <kazunori@xxxxxxxxxxxx>
   Date: Fri, 6 Jun 2003 14:49:25 +0900

   In dst_pop refernce cound of dsts except for last are incremented in
   dst_clone and decremented in next call dst_pop but last dst refernce
   count will be never decremented.
   All dst are held by xfrm_policy and there is no need to touch the
   refernce count here.
   
Ok, so the idea is to hold onto top-level parent DST entry the entire
time, and this prevents the DST and all it's children from being
destroyed.  Is this correct?

Let me study this a little bit, I want to make sure it is correct.