From: Eric Dumazet <edumazet@google.com>
Date: Sun, 5 Oct 2014 09:35:15 +0000 (+0300)
Subject: net/mlx4_en: Avoid false sharing in mlx4_en_en_process_tx_cq()
X-Git-Tag: fixes-against-v3.18-rc2~144^2~30^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb1843ee72c7b2ed784bf88ad79c6ccc2f652499;p=pandora-kernel.git

net/mlx4_en: Avoid false sharing in mlx4_en_en_process_tx_cq()

mlx4_en_process_tx_cq() carefully fetches and writes ring->last_nr_txbb
and ring->cons only one time to avoid false sharing

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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