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| author | Eric Dumazet <edumazet@google.com> | 2021-11-15 22:02:39 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-16 16:10:34 +0300 |
| commit | 91b6d325635617540b6a1646ddb138bb17cbd569 (patch) | |
| tree | f4bb42d5c9f0ae67c51618aaf2364feb014516d9 /net/mptcp | |
| parent | 6c302e799a0d4be1362f505453b714fe05d91f2a (diff) | |
| download | linux-91b6d325635617540b6a1646ddb138bb17cbd569.tar.xz | |
net: cache align tcp_memory_allocated, tcp_sockets_allocated
tcp_memory_allocated and tcp_sockets_allocated often share
a common cache line, source of false sharing.
Also take care of udp_memory_allocated and mptcp_sockets_allocated.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/protocol.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index b7e32e316738..6db93da59843 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -48,7 +48,7 @@ enum { MPTCP_CMSG_TS = BIT(0), }; -static struct percpu_counter mptcp_sockets_allocated; +static struct percpu_counter mptcp_sockets_allocated ____cacheline_aligned_in_smp; static void __mptcp_destroy_sock(struct sock *sk); static void __mptcp_check_send_data_fin(struct sock *sk); |