netdev - Re: [PATCH net-next] ipv4: fix a dst leak in tunnels

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Date:	Fri, 17 Jan 2014 14:18:46 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Tom Herbert <therbert@...gle.com>,
	Maciej Żenczykowski <maze@...gle.com>
Subject: Re: [PATCH net-next] ipv4: fix a dst leak in tunnels

On Thu, Jan 16, 2014 at 4:41 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> From: Eric Dumazet <edumazet@...gle.com>
>
> This patch :
>
> 1) Remove a dst leak if DST_NOCACHE was set on dst
>    Fix this by holding a reference only if dst really cached.
>
> 2) Remove a lockdep warning in __tunnel_dst_set()
>     This was reported by Cong Wang.
>
> 3) Remove usage of a spinlock where xchg() is enough
>
> 4) Remove some spurious inline keywords.
>    Let compiler decide for us.

5) remove the unless NULL'ing for percpu pointers. :)

Looks good.

Thanks!
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