[INET]: Consolidate the xxx_frag_destroy

To make in possible we need to know the exact frag queue
size for inet_frags->mem management and two callbacks:

 * to destoy the skb (optional, used in conntracks only)
 * to free the queue itself (mandatory, but later I plan to
   move the allocation and the destruction of frag_queues
   into the common place, so this callback will most likely
   be optional too).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index e374412ff42b..2dd1cd4e7f44 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -33,16 +33,21 @@ struct inet_frags {
         rwlock_t                lock;
         u32                     rnd;
         int                     nqueues;
+        int                     qsize;
         atomic_t                mem;
         struct timer_list       secret_timer;
         struct inet_frags_ctl   *ctl;
 
         unsigned int            (*hashfn)(struct inet_frag_queue *);
+        void                    (*destructor)(struct inet_frag_queue *);
+        void                    (*skb_free)(struct sk_buff *);
 };
 
 void inet_frags_init(struct inet_frags *);
 void inet_frags_fini(struct inet_frags *);
 
 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
+void inet_frag_destroy(struct inet_frag_queue *q,
+                                struct inet_frags *f, int *work);
 
 #endif