net: init sk_cookie for inet socket

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With sk_cookie we can identify a socket, that is very helpful for
traceing and statistic, i.e. tcp tracepiont and ebpf.
So we'd better init it by default for inet socket.
When using it, we just need call atomic64_read(&sk->sk_cookie).

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yafang Shao 2018-04-22 21:50:04 +08:00 • committed by David S. Miller

parent ec8c360a6e

commit c6849a3ac1

2 changed files with 16 additions and 1 deletions

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9

include/linux/sock_diag.h

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8

net/ipv4/tcp_input.c

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