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* [PATCH net-next] ipv6: icmp: use this_cpu_read() in icmpv6_sk()
@ 2019-05-31 22:27 Eric Dumazet
  2019-06-03 21:59 ` David Miller
  0 siblings, 1 reply; 2+ messages in thread
From: Eric Dumazet @ 2019-05-31 22:27 UTC (permalink / raw)
  To: David S . Miller; +Cc: netdev, Eric Dumazet, Eric Dumazet, Kefeng Wang

In general, this_cpu_read(*X) is faster than *this_cpu_ptr(X)

Also remove the inline attibute, totally useless.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 net/ipv6/icmp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index afb915807cd0109e02df6e0858319c0ff78c33e8..d274f5b64afe0c5325d6f14c33842b7da61653e8 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -79,9 +79,9 @@
  *
  *	On SMP we have one ICMP socket per-cpu.
  */
-static inline struct sock *icmpv6_sk(struct net *net)
+static struct sock *icmpv6_sk(struct net *net)
 {
-	return *this_cpu_ptr(net->ipv6.icmp_sk);
+	return this_cpu_read(*net->ipv6.icmp_sk);
 }
 
 static int icmpv6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-- 
2.22.0.rc1.257.g3120a18244-goog


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH net-next] ipv6: icmp: use this_cpu_read() in icmpv6_sk()
  2019-05-31 22:27 [PATCH net-next] ipv6: icmp: use this_cpu_read() in icmpv6_sk() Eric Dumazet
@ 2019-06-03 21:59 ` David Miller
  0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2019-06-03 21:59 UTC (permalink / raw)
  To: edumazet; +Cc: netdev, eric.dumazet, wangkefeng.wang

From: Eric Dumazet <edumazet@google.com>
Date: Fri, 31 May 2019 15:27:00 -0700

> In general, this_cpu_read(*X) is faster than *this_cpu_ptr(X)
> 
> Also remove the inline attibute, totally useless.
> 
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Cc: Kefeng Wang <wangkefeng.wang@huawei.com>

Applied.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2019-05-31 22:27 [PATCH net-next] ipv6: icmp: use this_cpu_read() in icmpv6_sk() Eric Dumazet
2019-06-03 21:59 ` David Miller

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