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mlx4: do not use priv->stats_lock in mlx4_en_auto_moderation()
authorEric Dumazet <edumazet@google.com>
Wed, 23 Nov 2016 17:46:52 +0000 (09:46 -0800)
committerDavid S. Miller <davem@davemloft.net>
Sun, 27 Nov 2016 20:26:15 +0000 (15:26 -0500)
commitb9972d2205f696fdb53ee0133aebd2d0a99e1801
tree1f978091016d7c8c066a05d0ee6db6d9dbf331c3tree | snapshot
parent0b42f25d2f123bb7fbd3565d003a8ea9e1e810fecommit | diff
mlx4: do not use priv->stats_lock in mlx4_en_auto_moderation()

Per RX ring packets/bytes counters are not protected by global
priv->stats_lock.

Better not confuse the reader, and use READ_ONCE() to show we read
these counters without surrounding synchronization.

Interrupt moderation is best effort, and we do not really care of
ultra precise counters.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx4/en_netdev.c diff | blob | history
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