[PATCH RFC 25/31] net: Make wireless netlink event generation handle multiple network namespaces
From: Eric W. Biederman <hidden>
Date: 2007-01-25 19:01:41
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Eric W. Biederman <redacted> - unquoted Signed-off-by: Eric W. Biederman <redacted> --- 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