From: Wenfeng Liu <liuwf@arraynetworks.com.cn>
Date: Mon, 15 Jun 2015 04:07:33 +0000 (-0400)
Subject: kni: fix ioctl in container
X-Git-Tag: spdx-start~9059
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=790aa264bc34a07bbcc44465b79536fc0a3144b8;p=dpdk.git

kni: fix ioctl in container

In containers like docker, current->pid returns current process's global
PID instead of its own PID under containers's PID namespace, and
get_net_ns_by_pid() suppose to accept a virtual PID under its own
namespace, so we should use task_pid_vnr(current) to get current process's
virtual PID instead of current->pid.

Signed-off-by: Wenfeng Liu <liuwf@arraynetworks.com.cn>
Acked-by: Helin Zhang <helin.zhang@intel.com>
---

diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c
index 912a8f1804..2e9fa897b9 100644
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ b/lib/librte_eal/linuxapp/kni/kni_misc.c
@@ -358,7 +358,7 @@ kni_ioctl_create(unsigned int ioctl_num, unsigned long ioctl_param)
 		return -EBUSY;
 	}
 
-	net = get_net_ns_by_pid(current->pid);
+	net = get_net_ns_by_pid(task_pid_vnr(current));
 	if (IS_ERR(net)) {
 		free_netdev(net_dev);
 		return PTR_ERR(net);