From: Hoang Le Date: Wed, 6 Nov 2019 06:26:10 +0000 (+0700) Subject: tipc: reduce sensitive to retransmit failures X-Git-Tag: v5.10.7~3838^2~203 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=426071f1f3995d7e9603246bffdcbf344cd31719;p=platform%2Fkernel%2Flinux-rpi.git tipc: reduce sensitive to retransmit failures With huge cluster (e.g >200nodes), the amount of that flow: gap -> retransmit packet -> acked will take time in case of STATE_MSG dropped/delayed because a lot of traffic. This lead to 1.5 sec tolerance value criteria made link easy failure around 2nd, 3rd of failed retransmission attempts. Instead of re-introduced criteria of 99 faled retransmissions to fix the issue, we increase failure detection timer to ten times tolerance value. Fixes: 77cf8edbc0e7 ("tipc: simplify stale link failure criteria") Acked-by: Jon Maloy Signed-off-by: Hoang Le Acked-by: Jon Signed-off-by: David S. Miller --- diff --git a/net/tipc/link.c b/net/tipc/link.c index 038861ba..2aed7a9 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1087,7 +1087,7 @@ static bool link_retransmit_failure(struct tipc_link *l, struct tipc_link *r, return false; if (!time_after(jiffies, TIPC_SKB_CB(skb)->retr_stamp + - msecs_to_jiffies(r->tolerance))) + msecs_to_jiffies(r->tolerance * 10))) return false; hdr = buf_msg(skb);