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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/ipv4/ipip.c | |
| parent | 2bc8ca40f951163b3bb75949479e2755c12c1b96 (diff) | |
| download | linux-3.10-8ce120f11898c921329a5f618d01dcc1e8e69cac.tar.gz linux-3.10-8ce120f11898c921329a5f618d01dcc1e8e69cac.tar.bz2 linux-3.10-8ce120f11898c921329a5f618d01dcc1e8e69cac.zip | |
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/ipv4/ipip.c')
| -rw-r--r-- | net/ipv4/ipip.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 065effd8349..94906908a41 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -148,7 +148,7 @@ 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 *ipip_get_stats(struct net_device *dev) { |