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net: Update TCP congestion control documentation

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Update tcp.txt to fix mandatory congestion control ops and default
CCA selection. Also, fix comment in tcp.h for undo_cwnd.

Signed-off-by: Anmol Sarma <me@anmolsarma.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Anmol Sarma
2017-06-03 17:40:54 +05:30
committed by David S. Miller
parent 6dc06c08be
commit 1e0ce2a1ee
2 changed files with 14 additions and 19 deletions
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include/net/tcp.h
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@@ -924,7 +924,7 @@ struct tcp_congestion_ops {
void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev);
/* call when ack arrives (optional) */
void (*in_ack_event)(struct sock *sk, u32 flags);
/* new value of cwnd after loss (optional) */
/* new value of cwnd after loss (required) */
u32 (*undo_cwnd)(struct sock *sk);
/* hook for packet ack accounting (optional) */
void (*pkts_acked)(struct sock *sk, const struct ack_sample *sample);