[PATCH RFC 25/31] net: Make wireless netlink event generation handle multiple network namespaces

[Eric W. Biederman]

From: Eric W. Biederman <[EMAIL PROTECTED]> - unquoted

Signed-off-by: Eric W. Biederman <[EMAIL PROTECTED]>
---
 net/core/wireless.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/net/core/wireless.c b/net/core/wireless.c
index 9036359..d534617 100644
--- a/net/core/wireless.c
+++ b/net/core/wireless.c
@@ -1934,8 +1934,13 @@ static void wireless_nlevent_process(unsigned long data)
 {
        struct sk_buff *skb;
 
-       while ((skb = skb_dequeue(&wireless_nlevent_queue)))
-               rtnl_notify(skb, init_net(), 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+       while ((skb = skb_dequeue(&wireless_nlevent_queue))) {
+               struct net_device *dev = skb->dev;
+               net_t net = dev->nd_net;
+               skb->dev = NULL;
+               rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+               dev_put(dev);
+       }
 }
 
 static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0);
@@ -1992,9 +1997,6 @@ static inline void rtmsg_iwinfo(struct net_device *       
dev,
        struct sk_buff *skb;
        int size = NLMSG_GOODSIZE;
 
-       if (!net_eq(dev->nd_net, init_net()))
-               return;
-
        skb = alloc_skb(size, GFP_ATOMIC);
        if (!skb)
                return;
@@ -2004,6 +2006,9 @@ static inline void rtmsg_iwinfo(struct net_device *       
dev,
                kfree_skb(skb);
                return;
        }
+       /* Remember the device until we are in process context */
+       dev_hold(dev);
+       skb->dev = dev;
        NETLINK_CB(skb).dst_group = RTNLGRP_LINK;
        skb_queue_tail(&wireless_nlevent_queue, skb);
        tasklet_schedule(&wireless_nlevent_tasklet);
-- 
1.4.4.1.g278f

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