netdev - Re: [PATCH] inetpeer: fix a race in inetpeer_gc

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Message-ID: <20120605115640.GC27795@secunet.com>
Date:	Tue, 5 Jun 2012 13:56:40 +0200
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] inetpeer: fix a race in inetpeer_gc_worker()

On Tue, Jun 05, 2012 at 11:28:27AM +0200, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> commit 5faa5df1fa2024 (inetpeer: Invalidate the inetpeer tree along with
> the routing cache) added a race :
> 
> Before freeing an inetpeer, we must respect a RCU grace period, and make
> sure no user will attempt to increase refcnt.
> 

As already mentioned in the other mail. In this case, I think
we can just delete the inetpeer once the refcount got zero.

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