From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Wed, 29 Jan 2014 16:08:59 +0000 (+0200)
Subject: net/ipv4: Use non-atomic allocation of udp offloads structure instance
X-Git-Tag: v3.14-rc3~36^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b5aaab12b2b4bc4acab7384c17a87f3406e5047d;p=pandora-kernel.git

net/ipv4: Use non-atomic allocation of udp offloads structure instance

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@oracle.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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