netdev - Re: [PATCH net-next 2/2] tcp: add TCP_CC

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Message-Id: <20150429.181257.474967776040123413.davem@davemloft.net>
Date:	Wed, 29 Apr 2015 18:12:57 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	edumazet@...gle.com
Cc:	netdev@...r.kernel.org, eric.dumazet@...il.com, ycheng@...gle.com,
	ncardwell@...gle.com
Subject: Re: [PATCH net-next 2/2] tcp: add TCP_CC_INFO socket option

From: Eric Dumazet <edumazet@...gle.com>
Date: Tue, 28 Apr 2015 16:23:49 -0700

> Some Congestion Control modules can provide per flow information,
> but current way to get this information is to use netlink.
> 
> Like TCP_INFO, let's add TCP_CC_INFO so that applications can
> issue a getsockopt() if they have a socket file descriptor,
> instead of playing complex netlink games.
> 
> Sample usage would be :
> 
>   union tcp_cc_info info;
>   socklen_t len = sizeof(info);
> 
>   if (getsockopt(fd, SOL_TCP, TCP_CC_INFO, &info, &len) == -1)
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied.
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