netdev - Re: [PATCH] tipc: flow control should not account for sk

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Date:	Thu, 4 Oct 2012 11:59:11 +0200
From:	Erik Hugne <erik.hugne@...csson.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Jon Maloy <jon.maloy@...csson.com>,
	"ying.xue@...driver.com" <ying.xue@...driver.com>,
	"paul.gortmaker@...driver.com" <paul.gortmaker@...driver.com>
Subject: Re: [PATCH] tipc: flow control should not account for sk_rcvbuf

> What guarantee do we have this cannot use all kernel memory ?
>
> If sk->sk_rcvbuf is not an acceptable limit here, you must use a
> different limit, but not infinity.
>
There is an implicit limit on how much data that can be buffered on each 
socket, controlled by TIPC_FLOW_CONTROL_WIN.

This limit is:
TIPC_FLOW_CONTROL_WIN * 2 * TIPC_MAX_USER_MSG_SIZE

//E
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