From: Eric Dumazet <edumazet@google.com>
Date: Fri, 9 Feb 2024 15:30:59 +0000 (+0000)
Subject: ipv4/fib: use synchronize_net() when holding RTNL
X-Git-Tag: v6.9-rc1~159^2~279^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2cd0c51e3baf7aa49e802c06cb1b2ffa9c82fbe1;p=thirdparty%2Fkernel%2Flinux.git

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@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3ff35f8117655..0fc7ab5832d1a 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();
 	}
 }