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[SCTP]: Consolidate sctp_ulpq_renege_xxx functions 

Both are equal, except for the list to be traversed.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2007-10-23 20:30:25 -07:00 committed by David S. Miller
parent 5c58298c25
commit 16d14ef9f2
1 changed files with 10 additions and 24 deletions
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34
net/sctp/ulpqueue.c
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@ -908,8 +908,8 @@ void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn)
return;
}
/* Renege 'needed' bytes from the ordering queue. */
static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
static __u16 sctp_ulpq_renege_list(struct sctp_ulpq *ulpq,
struct sk_buff_head *list, __u16 needed)
{
__u16 freed = 0;
__u32 tsn;
@ -919,7 +919,7 @@ static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
tsnmap = &ulpq->asoc->peer.tsn_map;
while ((skb = __skb_dequeue_tail(&ulpq->lobby)) != NULL) {
while ((skb = __skb_dequeue_tail(list)) != NULL) {
freed += skb_headlen(skb);
event = sctp_skb2event(skb);
tsn = event->tsn;
@ -933,30 +933,16 @@ static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
return freed;
}
/* Renege 'needed' bytes from the ordering queue. */
static __u16 sctp_ulpq_renege_order(struct sctp_ulpq *ulpq, __u16 needed)
{
return sctp_ulpq_renege_list(ulpq, &ulpq->lobby, needed);
}
/* Renege 'needed' bytes from the reassembly queue. */
static __u16 sctp_ulpq_renege_frags(struct sctp_ulpq *ulpq, __u16 needed)
{
__u16 freed = 0;
__u32 tsn;
struct sk_buff *skb;
struct sctp_ulpevent *event;
struct sctp_tsnmap *tsnmap;
tsnmap = &ulpq->asoc->peer.tsn_map;
/* Walk backwards through the list, reneges the newest tsns. */
while ((skb = __skb_dequeue_tail(&ulpq->reasm)) != NULL) {
freed += skb_headlen(skb);
event = sctp_skb2event(skb);
tsn = event->tsn;
sctp_ulpevent_free(event);
sctp_tsnmap_renege(tsnmap, tsn);
if (freed >= needed)
return freed;
}
return freed;
return sctp_ulpq_renege_list(ulpq, &ulpq->reasm, needed);
}
/* Partial deliver the first message as there is pressure on rwnd. */