From: Yuchung Cheng <[email protected]> Date: Tue, 8 Jan 2019 18:14:28 -0800
> Previously upon SYN timeouts the sender recomputes the txhash to > try a different path. However this does not apply on the initial > timeout of SYN-data (active Fast Open). Therefore an active IPv6 > Fast Open connection may incur one second RTO penalty to take on > a new path after the second SYN retransmission uses a new flow label. > > This patch removes this undesirable behavior so Fast Open changes > the flow label just like the regular connections. This also helps > avoid falsely disabling Fast Open on the sender which triggers > after two consecutive SYN timeouts on Fast Open. > > Signed-off-by: Yuchung Cheng <[email protected]> > Reviewed-by: Neal Cardwell <[email protected]> Applied and queued up for -stable, thanks!
