netdev - Re: [PATCH net] net/ipv4: Use non-atomic allocation of udp offloads structure instance

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Message-Id: <20140130.162627.1742758630829288487.davem@davemloft.net>
Date:	Thu, 30 Jan 2014 16:26:27 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ogerlitz@...lanox.com
Cc:	netdev@...r.kernel.org, dan.carpenter@...cle.com
Subject: Re: [PATCH net] net/ipv4: Use non-atomic allocation of udp
 offloads structure instance

From: Or Gerlitz <ogerlitz@...lanox.com>
Date: Wed, 29 Jan 2014 18:08:59 +0200

> Since udp_add_offload() can be called from non-sleepable context e.g
> under this call tree from the vxlan driver use case:
> 
>   vxlan_socket_create() <-- holds the spinlock
>   -> vxlan_notify_add_rx_port()
>      -> udp_add_offload()  <-- schedules
> 
> we should allocate the udp_offloads structure in atomic manner.
> 
> Fixes: b582ef0 ('net: Add GRO support for UDP encapsulating protocols')
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>

Applied.
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