[INET]: Consolidate the xxx_frag_kill
Since now all the xxx_frag_kill functions now work
with the generic inet_frag_queue data type, this can
be moved into a common place.
The xxx_unlink() code is moved as well.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 69623ff..534eaa8 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -42,3 +42,26 @@
{
}
EXPORT_SYMBOL(inet_frags_fini);
+
+static inline void fq_unlink(struct inet_frag_queue *fq, struct inet_frags *f)
+{
+ write_lock(&f->lock);
+ hlist_del(&fq->list);
+ list_del(&fq->lru_list);
+ f->nqueues--;
+ write_unlock(&f->lock);
+}
+
+void inet_frag_kill(struct inet_frag_queue *fq, struct inet_frags *f)
+{
+ if (del_timer(&fq->timer))
+ atomic_dec(&fq->refcnt);
+
+ if (!(fq->last_in & COMPLETE)) {
+ fq_unlink(fq, f);
+ atomic_dec(&fq->refcnt);
+ fq->last_in |= COMPLETE;
+ }
+}
+
+EXPORT_SYMBOL(inet_frag_kill);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 0dd9a31..7416c05 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -108,20 +108,6 @@
static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
struct net_device *dev);
-static __inline__ void __ipq_unlink(struct ipq *qp)
-{
- hlist_del(&qp->q.list);
- list_del(&qp->q.lru_list);
- ip4_frags.nqueues--;
-}
-
-static __inline__ void ipq_unlink(struct ipq *ipq)
-{
- write_lock(&ip4_frags.lock);
- __ipq_unlink(ipq);
- write_unlock(&ip4_frags.lock);
-}
-
static unsigned int ipqhashfn(__be16 id, __be32 saddr, __be32 daddr, u8 prot)
{
return jhash_3words((__force u32)id << 16 | prot,
@@ -222,14 +208,7 @@
*/
static void ipq_kill(struct ipq *ipq)
{
- if (del_timer(&ipq->q.timer))
- atomic_dec(&ipq->q.refcnt);
-
- if (!(ipq->q.last_in & COMPLETE)) {
- ipq_unlink(ipq);
- atomic_dec(&ipq->q.refcnt);
- ipq->q.last_in |= COMPLETE;
- }
+ inet_frag_kill(&ipq->q, &ip4_frags);
}
/* Memory limiting on fragments. Evictor trashes the oldest