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[SCTP]: Use struct list_head for chunk lists, not sk_buff_head.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2005-07-08 21:47:49 -07:00
parent 9c05989bb2
commit 79af02c253
8 changed files with 86 additions and 66 deletions
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50
net/sctp/outqueue.c
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@@ -75,7 +75,7 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 sack_ctsn);
static inline void sctp_outq_head_data(struct sctp_outq *q,
struct sctp_chunk *ch)
{
__skb_queue_head(&q->out, (struct sk_buff *)ch);
list_add(&ch->list, &q->out_chunk_list);
q->out_qlen += ch->skb->len;
return;
}
@@ -83,17 +83,22 @@ static inline void sctp_outq_head_data(struct sctp_outq *q,
/* Take data from the front of the queue. */
static inline struct sctp_chunk *sctp_outq_dequeue_data(struct sctp_outq *q)
{
struct sctp_chunk *ch;
ch = (struct sctp_chunk *)__skb_dequeue(&q->out);
if (ch)
struct sctp_chunk *ch = NULL;
if (!list_empty(&q->out_chunk_list)) {
struct list_head *entry = q->out_chunk_list.next;
ch = list_entry(entry, struct sctp_chunk, list);
list_del_init(entry);
q->out_qlen -= ch->skb->len;
}
return ch;
}
/* Add data chunk to the end of the queue. */
static inline void sctp_outq_tail_data(struct sctp_outq *q,
struct sctp_chunk *ch)
{
__skb_queue_tail(&q->out, (struct sk_buff *)ch);
list_add_tail(&ch->list, &q->out_chunk_list);
q->out_qlen += ch->skb->len;
return;
}
@@ -197,8 +202,8 @@ static inline int sctp_cacc_skip(struct sctp_transport *primary,
void sctp_outq_init(struct sctp_association *asoc, struct sctp_outq *q)
{
q->asoc = asoc;
skb_queue_head_init(&q->out);
skb_queue_head_init(&q->control);
INIT_LIST_HEAD(&q->out_chunk_list);
INIT_LIST_HEAD(&q->control_chunk_list);
INIT_LIST_HEAD(&q->retransmit);
INIT_LIST_HEAD(&q->sacked);
INIT_LIST_HEAD(&q->abandoned);
@@ -217,7 +222,7 @@ void sctp_outq_teardown(struct sctp_outq *q)
{
struct sctp_transport *transport;
struct list_head *lchunk, *pos, *temp;
struct sctp_chunk *chunk;
struct sctp_chunk *chunk, *tmp;
/* Throw away unacknowledged chunks. */
list_for_each(pos, &q->asoc->peer.transport_addr_list) {
@@ -269,8 +274,10 @@ void sctp_outq_teardown(struct sctp_outq *q)
q->error = 0;
/* Throw away any leftover control chunks. */
while ((chunk = (struct sctp_chunk *) skb_dequeue(&q->control)) != NULL)
list_for_each_entry_safe(chunk, tmp, &q->control_chunk_list, list) {
list_del_init(&chunk->list);
sctp_chunk_free(chunk);
}
}
/* Free the outqueue structure and any related pending chunks. */
@@ -333,7 +340,7 @@ int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk)
break;
};
} else {
__skb_queue_tail(&q->control, (struct sk_buff *) chunk);
list_add_tail(&chunk->list, &q->control_chunk_list);
SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
}
@@ -650,10 +657,9 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
__u16 sport = asoc->base.bind_addr.port;
__u16 dport = asoc->peer.port;
__u32 vtag = asoc->peer.i.init_tag;
struct sk_buff_head *queue;
struct sctp_transport *transport = NULL;
struct sctp_transport *new_transport;
struct sctp_chunk *chunk;
struct sctp_chunk *chunk, *tmp;
sctp_xmit_t status;
int error = 0;
int start_timer = 0;
@@ -675,8 +681,9 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
* ...
*/
queue = &q->control;
while ((chunk = (struct sctp_chunk *)skb_dequeue(queue)) != NULL) {
list_for_each_entry_safe(chunk, tmp, &q->control_chunk_list, list) {
list_del_init(&chunk->list);
/* Pick the right transport to use. */
new_transport = chunk->transport;
@@ -814,8 +821,6 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
/* Finally, transmit new packets. */
start_timer = 0;
queue = &q->out;
while ((chunk = sctp_outq_dequeue_data(q)) != NULL) {
/* RFC 2960 6.5 Every DATA chunk MUST carry a valid
* stream identifier.
@@ -1149,8 +1154,9 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_sackhdr *sack)
/* See if all chunks are acked.
* Make sure the empty queue handler will get run later.
*/
q->empty = skb_queue_empty(&q->out) && skb_queue_empty(&q->control) &&
list_empty(&q->retransmit);
q->empty = (list_empty(&q->out_chunk_list) &&
list_empty(&q->control_chunk_list) &&
list_empty(&q->retransmit));
if (!q->empty)
goto finish;
@@ -1679,9 +1685,9 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
if (TSN_lte(tsn, ctsn)) {
list_del_init(lchunk);
if (!chunk->tsn_gap_acked) {
chunk->transport->flight_size -=
sctp_data_size(chunk);
q->outstanding_bytes -= sctp_data_size(chunk);
chunk->transport->flight_size -=
sctp_data_size(chunk);
q->outstanding_bytes -= sctp_data_size(chunk);
}
sctp_chunk_free(chunk);
} else {
@@ -1729,7 +1735,7 @@ static void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
nskips, &ftsn_skip_arr[0]);
if (ftsn_chunk) {
__skb_queue_tail(&q->control, (struct sk_buff *)ftsn_chunk);
list_add_tail(&ftsn_chunk->list, &q->control_chunk_list);
SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
}
}