linux-kernel - Re: [PATCH 3/3] Convert the UDP hash lock to RCU

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Message-Id: <20081007.112622.73930718.davem@davemloft.net>
Date:	Tue, 07 Oct 2008 11:26:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	minyard@....org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, shemminger@...tta.com,
	paulmck@...ux.vnet.ibm.com
Subject: Re: [PATCH 3/3] Convert the UDP hash lock to RCU

From: Eric Dumazet <dada1@...mosbay.com>
Date: Tue, 07 Oct 2008 07:24:45 +0200

> Most UDP sockets are setup for long periods (RTP trafic), or if an application really
> wants to {open/send or receive one UDP frame/close} many sockets, it already hits
> RCU handling of its file structures and should not be slowed down that much.

As stated, I added RCU destruction generically for socket objects, and it
showed up clearly.

So "not be slowed down that much" has been disproven, at least to me,
already :-)
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