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authorEric Dumazet <edumazet@google.com>2019-06-01 04:17:33 +0200
committerDavid S. Miller <davem@davemloft.net>2019-06-04 00:09:34 +0200
commit5472c3c6a5f0573a609f77adce8ed1bd54233c7a (patch)
treeaec86becfb120b7fee84bdaa37c0861ccc6933f4 /net/ipv4
parentipv4: icmp: use this_cpu_read() in icmp_sk() (diff)
downloadlinux-5472c3c6a5f0573a609f77adce8ed1bd54233c7a.tar.xz
linux-5472c3c6a5f0573a609f77adce8ed1bd54233c7a.zip
tcp: use this_cpu_read(*X) instead of *this_cpu_ptr(X)
this_cpu_read(*X) is slightly faster than *this_cpu_ptr(X) Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/tcp_ipv4.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index af81e4a6a8d8..59b7edd8719c 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -771,7 +771,7 @@ static void tcp_v4_send_reset(const struct sock *sk, struct sk_buff *skb)
arg.tos = ip_hdr(skb)->tos;
arg.uid = sock_net_uid(net, sk && sk_fullsock(sk) ? sk : NULL);
local_bh_disable();
- ctl_sk = *this_cpu_ptr(net->ipv4.tcp_sk);
+ ctl_sk = this_cpu_read(*net->ipv4.tcp_sk);
if (sk)
ctl_sk->sk_mark = (sk->sk_state == TCP_TIME_WAIT) ?
inet_twsk(sk)->tw_mark : sk->sk_mark;
@@ -863,7 +863,7 @@ static void tcp_v4_send_ack(const struct sock *sk,
arg.tos = tos;
arg.uid = sock_net_uid(net, sk_fullsock(sk) ? sk : NULL);
local_bh_disable();
- ctl_sk = *this_cpu_ptr(net->ipv4.tcp_sk);
+ ctl_sk = this_cpu_read(*net->ipv4.tcp_sk);
if (sk)
ctl_sk->sk_mark = (sk->sk_state == TCP_TIME_WAIT) ?
inet_twsk(sk)->tw_mark : sk->sk_mark;