svn commit: r303766 - head/sys/netinet

[hiren panchasara]

On 08/05/16 at 09:08P, Sepherosa Ziehau wrote:
> Author: sephe
> Date: Fri Aug  5 09:08:00 2016
> New Revision: 303766
> URL: https://svnweb.freebsd.org/changeset/base/303766
> 
> Log:
>   tcp/lro: If timestamps mismatch or it's a FIN, force flush.
>   
>   This keeps the segments/ACK/FIN delivery order.
>   
>   Before this patch, it was observed: if A sent FIN immediately after
>   an ACK, B would deliver FIN first to the TCP stack, then the ACK.
>   This out-of-order delivery causes one unnecessary ACK sent from B.
>   
>   Reviewed by:	gallatin, hps
>   Obtained from:  rrs, gallatin
>   Sponsored by:	Netflix (rrs, gallatin), Microsoft (sephe)
>   Differential Revision:	https://reviews.freebsd.org/D7415

Hi Sephe,

This looks like a good fix for stable/11. Can you please MFC it?

Cheers,
Hiren
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