diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-11-16 07:24:24 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-17 21:37:13 -0800 |
| commit | 9a5ee462302512b7f3929c19f0711715613ac418 (patch) | |
| tree | d5263091d182ab0fa517fce397c406b29beb32a7 | |
| parent | 7c460cf9cd1a4edec0c2c4aa121c3aab9c0a17f1 (diff) | |
net: align pcpu_sw_netstats and pcpu_lstats structs
Do not risk spanning these small structures on two cache lines,
it is absolutely not worth it.
For 32bit arches, the hint might not be enough, but we do not
really care anymore.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/netdevice.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 917ae7b6263e..086e64d88597 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2389,13 +2389,13 @@ struct pcpu_sw_netstats { u64 tx_packets; u64 tx_bytes; struct u64_stats_sync syncp; -}; +} __aligned(4 * sizeof(u64)); struct pcpu_lstats { u64 packets; u64 bytes; struct u64_stats_sync syncp; -}; +} __aligned(2 * sizeof(u64)); #define __netdev_alloc_pcpu_stats(type, gfp) \ ({ \ |