netdev - [PATCH net-next 4/6] ipv4/fib: use synchronize

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Message-ID: <20240209153101.3824155-5-edumazet@google.com>
Date: Fri,  9 Feb 2024 15:30:59 +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: David Ahern <dsahern@...nel.org>, Pablo Neira Ayuso <pablo@...filter.org>, 
	Florian Westphal <fw@...len.de>, netdev@...r.kernel.org, eric.dumazet@...il.com, 
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 4/6] ipv4/fib: use synchronize_net() when holding RTNL

tnode_free() should use synchronize_net()
instead of syncronize_rcu() to release RTNL sooner.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 net/ipv4/fib_trie.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3ff35f811765591638c5e03d9211138ca6df3603..0fc7ab5832d1ae00e33fdf6fad4ef379c7d0bd4d 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -501,7 +501,7 @@ static void tnode_free(struct key_vector *tn)
 
 	if (tnode_free_size >= READ_ONCE(sysctl_fib_sync_mem)) {
 		tnode_free_size = 0;
-		synchronize_rcu();
+		synchronize_net();
 	}
 }
 
-- 
2.43.0.687.g38aa6559b0-goog