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[RFC,18/25] net: Move uevent_net_ops to pernet_sys list

Message ID 151094340710.20009.3620861813536087132.stgit@localhost.localdomain
State RFC, archived
Delegated to: David Miller
Headers show
Series [RFC,01/25] net: Assign net to net_namespace_list in setup_net() | expand

Commit Message

Kirill Tkhai Nov. 17, 2017, 6:30 p.m. UTC 
This postcore_initcall() created pernet_operations
are registered from ./lib directory, and they have
to go right after audit_net_ops.

uevent_net_init() and uevent_net_exit() create and
destroy netlink socket, and these actions serialized
in netlink code.

Parallel execution with other pernet_operations
makes the socket disappear earlier from uevent_sock_list
on ->exit. As userspace can't be interested in broadcast
messages of dying net, and, as I see, no one in kernel
listen them, we may safely move uevent_net_ops to pernet_sys
list.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
---
 lib/kobject_uevent.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index c3e84edc47c9..84c9d85477cc 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -647,7 +647,7 @@  static struct pernet_operations uevent_net_ops = {
 
 static int __init kobject_uevent_init(void)
 {
-	return register_pernet_subsys(&uevent_net_ops);
+	return register_pernet_sys(&uevent_net_ops);
 }