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| author | Eric Dumazet <edumazet@google.com> | 2015-03-20 17:15:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-20 21:36:53 -0400 |
| commit | d3593b5cef76db45c864de23c599b58198879e8c (patch) | |
| tree | 42f490bda04e13334233dae5b6039fdd8eae4d2b /security/capability.c | |
| parent | f6877fcf229b4e3d396cbd5199e040b4ea1362eb (diff) | |
| download | linux-d3593b5cef76db45c864de23c599b58198879e8c.tar.bz2 | |
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>
Diffstat (limited to 'security/capability.c')
| -rw-r--r-- | security/capability.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/security/capability.c b/security/capability.c index 070dd46f62f4..58a1600c149b 100644 --- a/security/capability.c +++ b/security/capability.c @@ -776,11 +776,6 @@ static int cap_tun_dev_open(void *security) { return 0; } - -static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk) -{ -} - #endif /* CONFIG_SECURITY_NETWORK */ #ifdef CONFIG_SECURITY_NETWORK_XFRM @@ -1134,7 +1129,6 @@ void __init security_fixup_ops(struct security_operations *ops) set_to_cap_if_null(ops, tun_dev_open); set_to_cap_if_null(ops, tun_dev_attach_queue); set_to_cap_if_null(ops, tun_dev_attach); - set_to_cap_if_null(ops, skb_owned_by); #endif /* CONFIG_SECURITY_NETWORK */ #ifdef CONFIG_SECURITY_NETWORK_XFRM set_to_cap_if_null(ops, xfrm_policy_alloc_security); |