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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-12-10 00:06:01 -0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-11 14:34:50 -0800 |
| commit | fe0499ae95f5f636bda1f6e0bdba5b7b023ea827 (patch) | |
| tree | d944ebcdaa0b689de58e3c98adf3d3b707385493 /net | |
| parent | 65d6c2b42ecc0ca77bb3c0fe27fcbdc84fc7a79a (diff) | |
| download | linux-3.10-fe0499ae95f5f636bda1f6e0bdba5b7b023ea827.tar.gz linux-3.10-fe0499ae95f5f636bda1f6e0bdba5b7b023ea827.tar.bz2 linux-3.10-fe0499ae95f5f636bda1f6e0bdba5b7b023ea827.zip | |
[DCCP] ccid3: Initialise RTT values
In both the sender and the receiver it is possible that the stored
RTT value is accessed before an actual RTT estimate has been computed.
This patch
* initialises the sender RTT to 0
- the sender always accesses the RTT in ccid3_hc_tx_packet_sent
- the RTT is further needed for the window counter algorithm
* replaces the receiver initialisation of 5msec with 0
- which has the same effect and removes an `XXX'
- the RTT value is needed in ccid3_hc_rx_packet_recv as rtt_prev
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/dccp/ccids/ccid3.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 7017d84a381..7618d51aa2d 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -617,6 +617,7 @@ static int ccid3_hc_tx_init(struct ccid *ccid, struct sock *sk) struct ccid3_hc_tx_sock *hctx = ccid_priv(ccid); hctx->ccid3hctx_s = 0; + hctx->ccid3hctx_rtt = 0; hctx->ccid3hctx_state = TFRC_SSTATE_NO_SENT; INIT_LIST_HEAD(&hctx->ccid3hctx_hist); @@ -1093,7 +1094,7 @@ static int ccid3_hc_rx_init(struct ccid *ccid, struct sock *sk) dccp_timestamp(sk, &hcrx->ccid3hcrx_tstamp_last_ack); hcrx->ccid3hcrx_tstamp_last_feedback = hcrx->ccid3hcrx_tstamp_last_ack; hcrx->ccid3hcrx_s = 0; - hcrx->ccid3hcrx_rtt = 5000; /* XXX 5ms for now... */ + hcrx->ccid3hcrx_rtt = 0; return 0; } |