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authorPavel Emelyanov <xemul@openvz.org>2007-10-15 02:39:14 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-15 12:26:42 -0700
commit1e4b82873af0f21002e37a81ef063d2e5410deb3 (patch)
tree9c4054c8393f03bae9565f98a109cc5721cf490f /net/ipv4/ip_fragment.c
parent321a3a99e4717b960e21c62fc6a140d21453df7f (diff)
downloadlinux-1e4b82873af0f21002e37a81ef063d2e5410deb3.tar.bz2
[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>
Diffstat (limited to 'net/ipv4/ip_fragment.c')
-rw-r--r--net/ipv4/ip_fragment.c39
1 files changed, 10 insertions, 29 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index e231c248aea7..e8736632094a 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -132,11 +132,13 @@ static __inline__ void frag_kfree_skb(struct sk_buff *skb, int *work)
kfree_skb(skb);
}
-static __inline__ void frag_free_queue(struct ipq *qp, int *work)
+static __inline__ void ip4_frag_free(struct inet_frag_queue *q)
{
- if (work)
- *work -= sizeof(struct ipq);
- atomic_sub(sizeof(struct ipq), &ip4_frags.mem);
+ struct ipq *qp;
+
+ qp = container_of(q, struct ipq, q);
+ if (qp->peer)
+ inet_putpeer(qp->peer);
kfree(qp);
}
@@ -153,34 +155,10 @@ static __inline__ struct ipq *frag_alloc_queue(void)
/* Destruction primitives. */
-/* Complete destruction of ipq. */
-static void ip_frag_destroy(struct ipq *qp, int *work)
-{
- struct sk_buff *fp;
-
- BUG_TRAP(qp->q.last_in&COMPLETE);
- BUG_TRAP(del_timer(&qp->q.timer) == 0);
-
- if (qp->peer)
- inet_putpeer(qp->peer);
-
- /* Release all fragment data. */
- fp = qp->q.fragments;
- while (fp) {
- struct sk_buff *xp = fp->next;
-
- frag_kfree_skb(fp, work);
- fp = xp;
- }
-
- /* Finally, release the queue descriptor itself. */
- frag_free_queue(qp, work);
-}
-
static __inline__ void ipq_put(struct ipq *ipq, int *work)
{
if (atomic_dec_and_test(&ipq->q.refcnt))
- ip_frag_destroy(ipq, work);
+ inet_frag_destroy(&ipq->q, &ip4_frags, work);
}
/* Kill ipq entry. It is not destroyed immediately,
@@ -721,6 +699,9 @@ void __init ipfrag_init(void)
{
ip4_frags.ctl = &ip4_frags_ctl;
ip4_frags.hashfn = ip4_hashfn;
+ ip4_frags.destructor = ip4_frag_free;
+ ip4_frags.skb_free = NULL;
+ ip4_frags.qsize = sizeof(struct ipq);
inet_frags_init(&ip4_frags);
}