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authorEric Dumazet <eric.dumazet@gmail.com>2011-11-05 03:19:28 +0400
committerDavid S. Miller <davem@davemloft.net>2011-11-09 00:10:59 +0400
commit8ce120f11898c921329a5f618d01dcc1e8e69cac (patch)
tree471821e87eb020e4e9dcf66124e862e7471220a1 /net/ipv4/ipip.c
parent2bc8ca40f951163b3bb75949479e2755c12c1b96 (diff)
downloadlinux-8ce120f11898c921329a5f618d01dcc1e8e69cac.tar.xz
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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 065effd8349a..94906908a416 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)
{