diff options
| author | Eric Dumazet <edumazet@google.com> | 2015-03-21 03:15:19 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-21 04:36:53 +0300 |
| commit | d3593b5cef76db45c864de23c599b58198879e8c (patch) | |
| tree | 42f490bda04e13334233dae5b6039fdd8eae4d2b /net/ipv4/tcp_output.c | |
| parent | f6877fcf229b4e3d396cbd5199e040b4ea1362eb (diff) | |
| download | linux-d3593b5cef76db45c864de23c599b58198879e8c.tar.xz | |
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 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index c2f0f6065cb1..18474088c3d0 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2926,7 +2926,6 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, skb_reserve(skb, MAX_TCP_HEADER); skb_dst_set(skb, dst); - security_skb_owned_by(skb, sk); mss = dst_metric_advmss(dst); if (tp->rx_opt.user_mss && tp->rx_opt.user_mss < mss) |