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authorEric Dumazet <edumazet@google.com>2015-10-05 07:08:11 +0300
committerDavid S. Miller <davem@davemloft.net>2015-10-05 12:45:27 +0300
commita1a5344ddbe8fd3e080013b317ac9a664490cfdf (patch)
tree75c793a05dd64db3df05f804e429bae45ead20d1 /net/ipv4/syncookies.c
parent004a5d0140ce1d05c1f5fce5df4baa2717a330e0 (diff)
downloadlinux-a1a5344ddbe8fd3e080013b317ac9a664490cfdf.tar.xz
tcp: avoid two atomic ops for syncookies
inet_reqsk_alloc() is used to allocate a temporary request in order to generate a SYNACK with a cookie. Then later, syncookie validation also uses a temporary request. These paths already took a reference on listener refcount, we can avoid a couple of atomic operations. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/syncookies.c')
-rw-r--r--net/ipv4/syncookies.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 729ceb5f63c6..8113c30ccf96 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -326,7 +326,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
goto out;
ret = NULL;
- req = inet_reqsk_alloc(&tcp_request_sock_ops, sk); /* for safety */
+ req = inet_reqsk_alloc(&tcp_request_sock_ops, sk, false); /* for safety */
if (!req)
goto out;