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path: root/net/dccp/ccids/lib/loss_interval.c
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-rw-r--r--net/dccp/ccids/lib/loss_interval.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c
index 5d7b7d8..906c81a 100644
--- a/net/dccp/ccids/lib/loss_interval.c
+++ b/net/dccp/ccids/lib/loss_interval.c
@@ -2,7 +2,7 @@
* net/dccp/ccids/lib/loss_interval.c
*
* Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
- * Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
+ * Copyright (c) 2005-6 Ian McDonald <ian.mcdonald@jandi.co.nz>
* Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
*
* This program is free software; you can redistribute it and/or modify
@@ -12,6 +12,7 @@
*/
#include <linux/module.h>
+#include <net/sock.h>
#include "loss_interval.h"
@@ -90,13 +91,13 @@ u32 dccp_li_hist_calc_i_mean(struct list_head *list)
u32 w_tot = 0;
list_for_each_entry_safe(li_entry, li_next, list, dccplih_node) {
- if (i < DCCP_LI_HIST_IVAL_F_LENGTH) {
+ if (li_entry->dccplih_interval != ~0) {
i_tot0 += li_entry->dccplih_interval * dccp_li_hist_w[i];
w_tot += dccp_li_hist_w[i];
+ if (i != 0)
+ i_tot1 += li_entry->dccplih_interval * dccp_li_hist_w[i - 1];
}
- if (i != 0)
- i_tot1 += li_entry->dccplih_interval * dccp_li_hist_w[i - 1];
if (++i > DCCP_LI_HIST_IVAL_F_LENGTH)
break;
@@ -107,37 +108,36 @@ u32 dccp_li_hist_calc_i_mean(struct list_head *list)
i_tot = max(i_tot0, i_tot1);
- /* FIXME: Why do we do this? -Ian McDonald */
- if (i_tot * 4 < w_tot)
- i_tot = w_tot * 4;
+ if (!w_tot) {
+ LIMIT_NETDEBUG(KERN_WARNING "%s: w_tot = 0\n", __FUNCTION__);
+ return 1;
+ }
- return i_tot * 4 / w_tot;
+ return i_tot / w_tot;
}
EXPORT_SYMBOL_GPL(dccp_li_hist_calc_i_mean);
-struct dccp_li_hist_entry *dccp_li_hist_interval_new(struct dccp_li_hist *hist,
- struct list_head *list,
- const u64 seq_loss,
- const u8 win_loss)
+int dccp_li_hist_interval_new(struct dccp_li_hist *hist,
+ struct list_head *list, const u64 seq_loss, const u8 win_loss)
{
- struct dccp_li_hist_entry *tail = NULL, *entry;
+ struct dccp_li_hist_entry *entry;
int i;
- for (i = 0; i <= DCCP_LI_HIST_IVAL_F_LENGTH; ++i) {
+ for (i = 0; i < DCCP_LI_HIST_IVAL_F_LENGTH; i++) {
entry = dccp_li_hist_entry_new(hist, SLAB_ATOMIC);
if (entry == NULL) {
dccp_li_hist_purge(hist, list);
- return NULL;
+ dump_stack();
+ return 0;
}
- if (tail == NULL)
- tail = entry;
+ entry->dccplih_interval = ~0;
list_add(&entry->dccplih_node, list);
}
entry->dccplih_seqno = seq_loss;
entry->dccplih_win_count = win_loss;
- return tail;
+ return 1;
}
EXPORT_SYMBOL_GPL(dccp_li_hist_interval_new);