netdev - Re: [PATCH net] tcp: refactor tcp_retransmit

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Date:   Tue, 3 Dec 2019 20:13:14 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>,
        Neal Cardwell <ncardwell@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH net] tcp: refactor tcp_retransmit_timer()

On Tue, Dec 03, 2019 at 08:05:52AM -0800, Eric Dumazet wrote:
> It appears linux-4.14 stable needs a backport of commit
> 88f8598d0a30 ("tcp: exit if nothing to retransmit on RTO timeout")
> 
> Since tcp_rtx_queue_empty() is not in pre 4.15 kernels,
> let's refactor tcp_retransmit_timer() to only use tcp_rtx_queue_head()

So does that mean that 4.19.y should get 88f8598d0a30 ("tcp: exit if
nothing to retransmit on RTO timeout") as-is?

> I will provide to stable teams the squashed patches.

This is that squashed patch, right?

thanks,

greg k-h