From: Eric Dumazet <edumazet@google.com>
Date: Sat, 21 Mar 2015 00:15:19 +0000 (-0700)
Subject: Revert "selinux: add a skb_owned_by() hook"
X-Git-Tag: omap-for-v4.1/fixes-rc1~141^2~189
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3593b5cef76db45c864de23c599b58198879e8c;p=pandora-kernel.git

Revert "selinux: add a skb_owned_by() hook"

This reverts commit ca10b9e9a8ca7342ee07065289cbe74ac128c169.

No longer needed after commit eb8895debe1baba41fcb62c78a16f0c63c21662a
("tcp: tcp_make_synack() should use sock_wmalloc")

When under SYNFLOOD, we build lot of SYNACK and hit false sharing
because of multiple modifications done on sk_listener->sk_wmem_alloc

Since tcp_make_synack() uses sock_wmalloc(), there is no need
to call skb_set_owner_w() again, as this adds two atomic operations.

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