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-rw-r--r--net/tipc/link.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 877d94f34814..2c6e1b9e024b 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -807,7 +807,7 @@ void link_prepare_wakeup(struct tipc_link *l)
skb_queue_walk_safe(&l->wakeupq, skb, tmp) {
imp = TIPC_SKB_CB(skb)->chain_imp;
- lim = l->window + l->backlog[imp].limit;
+ lim = l->backlog[imp].limit;
pnd[imp] += TIPC_SKB_CB(skb)->chain_sz;
if ((pnd[imp] + l->backlog[imp].len) >= lim)
break;
@@ -873,9 +873,11 @@ int tipc_link_xmit(struct tipc_link *l, struct sk_buff_head *list,
struct sk_buff *skb, *_skb, *bskb;
/* Match msg importance against this and all higher backlog limits: */
- for (i = imp; i <= TIPC_SYSTEM_IMPORTANCE; i++) {
- if (unlikely(l->backlog[i].len >= l->backlog[i].limit))
- return link_schedule_user(l, list);
+ if (!skb_queue_empty(backlogq)) {
+ for (i = imp; i <= TIPC_SYSTEM_IMPORTANCE; i++) {
+ if (unlikely(l->backlog[i].len >= l->backlog[i].limit))
+ return link_schedule_user(l, list);
+ }
}
if (unlikely(msg_size(hdr) > mtu)) {
skb_queue_purge(list);
@@ -1692,10 +1694,10 @@ void tipc_link_set_queue_limits(struct tipc_link *l, u32 win)
int max_bulk = TIPC_MAX_PUBLICATIONS / (l->mtu / ITEM_SIZE);
l->window = win;
- l->backlog[TIPC_LOW_IMPORTANCE].limit = win / 2;
- l->backlog[TIPC_MEDIUM_IMPORTANCE].limit = win;
- l->backlog[TIPC_HIGH_IMPORTANCE].limit = win / 2 * 3;
- l->backlog[TIPC_CRITICAL_IMPORTANCE].limit = win * 2;
+ l->backlog[TIPC_LOW_IMPORTANCE].limit = max_t(u16, 50, win);
+ l->backlog[TIPC_MEDIUM_IMPORTANCE].limit = max_t(u16, 100, win * 2);
+ l->backlog[TIPC_HIGH_IMPORTANCE].limit = max_t(u16, 150, win * 3);
+ l->backlog[TIPC_CRITICAL_IMPORTANCE].limit = max_t(u16, 200, win * 4);
l->backlog[TIPC_SYSTEM_IMPORTANCE].limit = max_bulk;
}