diff options
| author | Jon Paul Maloy <jon.maloy@ericsson.com> | 2015-05-14 16:46:18 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-14 18:24:46 +0200 |
| commit | dd3f9e70f59f43a5712eba9cf3ee4f1e6999540c (patch) | |
| tree | 89be13ccd5e7dc4c904f28fde9ebf9ee17f1bb0a /net/tipc/bcast.c | |
| parent | tipc: improve link congestion algorithm (diff) | |
| download | linux-dd3f9e70f59f43a5712eba9cf3ee4f1e6999540c.tar.xz linux-dd3f9e70f59f43a5712eba9cf3ee4f1e6999540c.zip | |
tipc: add packet sequence number at instant of transmission
Currently, the packet sequence number is updated and added to each
packet at the moment a packet is added to the link backlog queue.
This is wasteful, since it forces the code to traverse the send
packet list packet by packet when adding them to the backlog queue.
It would be better to just splice the whole packet list into the
backlog queue when that is the right action to do.
In this commit, we do this change. Also, since the sequence numbers
cannot now be assigned to the packets at the moment they are added
the backlog queue, we do instead calculate and add them at the moment
of transmission, when the backlog queue has to be traversed anyway.
We do this in the function tipc_link_push_packet().
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/bcast.c')
| -rw-r--r-- | net/tipc/bcast.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 842e19f6abf6..4906ca3c0f3a 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -115,12 +115,8 @@ static void bclink_set_last_sent(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); struct tipc_link *bcl = tn->bcl; - struct sk_buff *skb = skb_peek(&bcl->backlogq); - if (skb) - bcl->silent_intv_cnt = mod(buf_seqno(skb) - 1); - else - bcl->silent_intv_cnt = mod(bcl->snd_nxt - 1); + bcl->silent_intv_cnt = mod(bcl->snd_nxt - 1); } u32 tipc_bclink_get_last_sent(struct net *net) |