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authorArnaldo Carvalho de Melo <acme@mandriva.com>2005-08-29 02:15:54 -0300
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-29 16:13:46 -0700
commitc530cfb1ce1e8f230744c3f3bd86771f50725053 (patch)
tree8309c7803ccb3cbbe07e610e6a0e5580a63d83e2 /net/dccp/output.c
parenta84ffe430342db6ee585a5038f3242a6b4112d69 (diff)
[CCID3]: Call sk->sk_write_space(sk) when receiving a feedback packet
This makes the send rate calculations behave way more closely to what is specified, with the jitter previously seen on x and x_recv disappearing completely on non lossy setups. This resembles the tcp_data_snd_check code, that possibly we'll end up using in DCCP as well, perhaps moving this code to inet_connection_sock. For now I'm doing the simplest implementation tho. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/output.c')
-rw-r--r--net/dccp/output.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 116f6db5678..28de157a432 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -150,6 +150,19 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
return mss_now;
}
+void dccp_write_space(struct sock *sk)
+{
+ read_lock(&sk->sk_callback_lock);
+
+ if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
+ wake_up_interruptible(sk->sk_sleep);
+ /* Should agree with poll, otherwise some programs break */
+ if (sock_writeable(sk))
+ sk_wake_async(sk, 2, POLL_OUT);
+
+ read_unlock(&sk->sk_callback_lock);
+}
+
/**
* dccp_wait_for_ccid - Wait for ccid to tell us we can send a packet
* @sk: socket to wait for