From d3593b5cef76db45c864de23c599b58198879e8c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 20 Mar 2015 17:15:19 -0700 Subject: 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 Signed-off-by: David S. Miller --- security/security.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'security/security.c') diff --git a/security/security.c b/security/security.c index e81d5bbe7363..1f475aa53288 100644 --- a/security/security.c +++ b/security/security.c @@ -1359,11 +1359,6 @@ int security_tun_dev_open(void *security) } EXPORT_SYMBOL(security_tun_dev_open); -void security_skb_owned_by(struct sk_buff *skb, struct sock *sk) -{ - security_ops->skb_owned_by(skb, sk); -} - #endif /* CONFIG_SECURITY_NETWORK */ #ifdef CONFIG_SECURITY_NETWORK_XFRM -- cgit v1.2.3-58-ga151