| commit | 99f5711e7c15e997c4eb34b378502ef6f3982233 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Thu Feb 09 09:10:04 2017 -0800 |
| committer | David S. Miller <davem@davemloft.net> | Wed Feb 15 12:06:18 2017 -0500 |
| tree | 073958fdc459566c31bf02177ada4f42ac1e3b03 | |
| parent | d5bc1613d02f1c3f1226e2f7d555f0384d973482 [diff] |
mlx4: do not use rwlock in fast path Using a reader-writer lock in fast path is silly, when we can instead use RCU or a seqlock. For mlx4 hwstamp clock, a seqlock is the way to go, removing two atomic operations and false sharing. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>