Commit 8ce120f1 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

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: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2bc8ca40
......@@ -27,8 +27,8 @@
struct veth_net_stats {
u64 rx_packets;
u64 tx_packets;
u64 rx_bytes;
u64 tx_packets;
u64 tx_bytes;
u64 rx_dropped;
struct u64_stats_sync syncp;
......
......@@ -171,7 +171,7 @@ 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 *ipgre_get_stats(struct net_device *dev)
{
......
......@@ -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)
{
......
......@@ -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)
{
......
......@@ -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)
{
......
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