netdev - Re: [IPV4] ROUTE: Avoid sparse warnings

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Message-Id: <20080108.013441.70285847.davem@davemloft.net>
Date:	Tue, 08 Jan 2008 01:34:41 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	netdev@...r.kernel.org
Subject: Re: [IPV4] ROUTE: Avoid sparse warnings

From: Eric Dumazet <dada1@...mosbay.com>
Date: Tue, 08 Jan 2008 08:53:10 +0100

> It warns us because rt_cache_get_first() can returns with RCU_BH
> *acquired* or not.

As Herbert mentioned that's a pretty often used paradigm called
conditional locking.  :-)
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