Messages in this thread Patch in this message | | | Date | Fri, 07 Mar 2014 18:47:30 +0800 | From | Gu Zheng <> | Subject | [PATCH] netlink: switch net_ns only if net is not init_net |
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Many netlink users create netlink sock in the init_net, and the switching nes_ns(init_net-->net) is needless in this case. So here we add a pre-check to avoid this.
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> --- net/netlink/af_netlink.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index fdf5135..e9e4be9 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2429,7 +2429,8 @@ __netlink_kernel_create(struct net *net, int unit, struct module *module, goto out_sock_release_nosk; sk = sock->sk; - sk_change_net(sk, net); + if (!net_eq(net, &init_net)) + sk_change_net(sk, net); if (!cfg || cfg->groups < 32) groups = 32; -- 1.7.7
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