diff options
| author |   Yajun Deng <yajun.deng@linux.dev> | 2021-09-18 14:36:07 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-09-19 12:56:02 +0100 |
| commit | 4fc29989835ab7379f807854b5f7338b752b9f1a (patch) | |
| tree | 129d9b2d493ca913acc2b20e15f1c7c9cf5aa119 /net/core/rtnetlink.c | |
| parent | virtio_net: use netdev_warn_once to output warn when without enough queues (diff) | |
| download | linux-dev-4fc29989835ab7379f807854b5f7338b752b9f1a.tar.xz linux-dev-4fc29989835ab7379f807854b5f7338b752b9f1a.zip | |
net: rtnetlink: convert rcu_assign_pointer to RCU_INIT_POINTER
It no need barrier when assigning a NULL value to an RCU protected
pointer. So use RCU_INIT_POINTER() instead for more fast.
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/core/rtnetlink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 972c8cb303a5..327ca6bc6e6d 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -301,7 +301,7 @@ int rtnl_unregister(int protocol, int msgtype) } link = rtnl_dereference(tab[msgindex]); - rcu_assign_pointer(tab[msgindex], NULL); + RCU_INIT_POINTER(tab[msgindex], NULL); rtnl_unlock(); kfree_rcu(link, rcu); @@ -337,7 +337,7 @@ void rtnl_unregister_all(int protocol) if (!link) continue; - rcu_assign_pointer(tab[msgindex], NULL); + RCU_INIT_POINTER(tab[msgindex], NULL); kfree_rcu(link, rcu); } rtnl_unlock(); |