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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-04 23:19:28 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-08 15:10:59 -0500 |
| commit | 8ce120f11898c921329a5f618d01dcc1e8e69cac (patch) | |
| tree | 471821e87eb020e4e9dcf66124e862e7471220a1 /net/ipv6 | |
| parent | 2bc8ca40f951163b3bb75949479e2755c12c1b96 (diff) | |
| download | linux-8ce120f11898c921329a5f618d01dcc1e8e69cac.tar.bz2 | |
net: better pcpu data alignment
Tunnels can force an alignment of their percpu data to reduce number of
cache lines used in fast path, or read in .ndo_get_stats()
percpu_alloc() is a very fine grained allocator, so any small hole will
be used anyway.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_tunnel.c | 2 | ||||
| -rw-r--r-- | net/ipv6/sit.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index bdc15c9003d7..f36ca1397513 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -93,7 +93,7 @@ struct pcpu_tstats { unsigned long rx_bytes; unsigned long tx_packets; unsigned long tx_bytes; -}; +} __attribute__((aligned(4*sizeof(unsigned long)))); static struct net_device_stats *ip6_get_stats(struct net_device *dev) { diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index a7a18602a046..cec09382282d 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -91,7 +91,7 @@ struct pcpu_tstats { unsigned long rx_bytes; unsigned long tx_packets; unsigned long tx_bytes; -}; +} __attribute__((aligned(4*sizeof(unsigned long)))); static struct net_device_stats *ipip6_get_stats(struct net_device *dev) { |