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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2009-01-04 21:42:53 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-01-04 21:42:53 -0800 |
| commit | ddebc973c56b51b4e5d84d606f0430d81b895d67 (patch) | |
| tree | cebe0e4461346072b2063132fc1d9cf8c3e148f1 /net/dccp/dccp.h | |
| parent | 6ea2fde13abd3444008ab5e9585f9ed249e6047e (diff) | |
| download | lwn-ddebc973c56b51b4e5d84d606f0430d81b895d67.tar.gz lwn-ddebc973c56b51b4e5d84d606f0430d81b895d67.zip | |
dccp: Lockless integration of CCID congestion-control plugins
Based on Arnaldo's earlier patch, this patch integrates the standardised
CCID congestion control plugins (CCID-2 and CCID-3) of DCCP with dccp.ko:
* enables a faster connection path by eliminating the need to always go
through the CCID registration lock;
* updates the implementation to use only a single array whose size equals
the number of configured CCIDs instead of the maximum (256);
* since the CCIDs are now fixed array elements, synchronization is no
longer needed, simplifying use and implementation.
CCID-2 is suggested as minimum for a basic DCCP implementation (RFC 4340, 10);
CCID-3 is a standards-track CCID supported by RFC 4342 and RFC 5348.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/dccp.h')
| -rw-r--r-- | net/dccp/dccp.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index 0bc4c9a02e19..f2230fc168e1 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -432,10 +432,8 @@ static inline int dccp_ack_pending(const struct sock *sk) { const struct dccp_sock *dp = dccp_sk(sk); return dp->dccps_timestamp_echo != 0 || -#ifdef CONFIG_IP_DCCP_ACKVEC (dp->dccps_hc_rx_ackvec != NULL && dccp_ackvec_pending(dp->dccps_hc_rx_ackvec)) || -#endif inet_csk_ack_scheduled(sk); } |