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There are users that are running UDP applications that require a large receive queue size in order to get good performance. To prevent allocation failures for rx_rings when using non-SRQ mode and large recv_queue_size (1K or larger), use vmalloc() instead of kcalloc() to alocate rx_rings. Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>