tree 0a3d911efa46affbd5cd26a4d34f96878b8fa83a
parent 2e1af7d74f4f7b4d4c1b0fbf5da3b5f92d9c332f
author Eric Dumazet <edumazet@google.com> 1415714067 -0800
committer David S. Miller <davem@davemloft.net> 1415728805 -0500

tcp: move sk_mark_napi_id() at the right place

sk_mark_napi_id() is used to record for a flow napi id of incoming
packets for busypoll sake.
We should do this only on established flows, not on listeners.

This was 'working' by virtue of the socket cloning, but doing
this on SYN packets in unecessary cache line dirtying.

Even if we move sk_napi_id in the same cache line than sk_lock,
we are working to make SYN processing lockless, so it is desirable
to set sk_napi_id only for established flows.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>