[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240729210801.16196-5-kuniyu@amazon.com>
Date: Mon, 29 Jul 2024 14:07:59 -0700
From: Kuniyuki Iwashima <kuniyu@...zon.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>
CC: Kuniyuki Iwashima <kuniyu@...zon.com>, Kuniyuki Iwashima
<kuni1840@...il.com>, <netdev@...r.kernel.org>
Subject: [PATCH v1 net-next 4/6] net: Call preinit_net() without pernet_ops_rwsem.
When initialising the root netns, we call preinit_net() under
pernet_ops_rwsem.
However, the operations in preinit_net() do not require pernet_ops_rwsem.
Also, we don't hold it for preinit_net() when initialising non-root netns.
To be consistent, let's call preinit_net() without pernet_ops_rwsem in
net_ns_init().
Signed-off-by: Kuniyuki Iwashima <kuniyu@...zon.com>
---
net/core/net_namespace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index e4e99e7ba9f8..f1b6cea7a9b6 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -1199,8 +1199,9 @@ void __init net_ns_init(void)
#ifdef CONFIG_KEYS
init_net.key_domain = &init_net_key_domain;
#endif
- down_write(&pernet_ops_rwsem);
preinit_net(&init_net);
+
+ down_write(&pernet_ops_rwsem);
if (setup_net(&init_net, &init_user_ns))
panic("Could not setup the initial network namespace");
--
2.30.2
Powered by blists - more mailing lists