netdev - [PATCH net-next] tcp_metrics: use parallel_ops for tcp_metrics_nl

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Message-ID: <20240416162025.1251547-1-edumazet@google.com>
Date: Tue, 16 Apr 2024 16:20:25 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, eric.dumazet@...il.com, 
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next] tcp_metrics: use parallel_ops for tcp_metrics_nl_family

TCP_METRICS_CMD_GET and TCP_METRICS_CMD_DEL use their
own locking (tcp_metrics_lock and RCU),
they do not need genl_mutex protection.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 net/ipv4/tcp_metrics.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 301881eb23f376339d59a62bebf150b4b1cae3fb..e93df98de3f454e9118116c3ca1b19b237ead04f 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -988,6 +988,7 @@ static struct genl_family tcp_metrics_nl_family __ro_after_init = {
 	.maxattr	= TCP_METRICS_ATTR_MAX,
 	.policy = tcp_metrics_nl_policy,
 	.netnsok	= true,
+	.parallel_ops	= true,
 	.module		= THIS_MODULE,
 	.small_ops	= tcp_metrics_nl_ops,
 	.n_small_ops	= ARRAY_SIZE(tcp_metrics_nl_ops),
-- 
2.44.0.683.g7961c838ac-goog