Herbert Xu 58ec3b4db9 net: Fix netdev_run_todo dead-lock ... Benjamin Thery tracked down a bug that explains many instances of the error unregister_netdevice: waiting for %s to become free. Usage count = %d It turns out that netdev_run_todo can dead-lock with itself if a second instance of it is run in a thread that will then free a reference to the device waited on by the first instance. The problem is really quite silly. We were trying to create parallelism where none was required. As netdev_run_todo always follows a RTNL section, and that todo tasks can only be added with the RTNL held, by definition you should only need to wait for the very ones that you've added and be done with it. There is no need for a second mutex or spinlock. This is exactly what the following patch does. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>		2008-10-07 15:50:03 -07:00
..
9p	9p: fix put_data error handling	2008-09-24 16:22:22 -05:00
802	list_for_each_rcu must die: networking	2008-07-25 10:53:27 -07:00
8021q	netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.	2008-07-22 14:16:42 -07:00
appletalk	net: convert BUG_TRAP to generic WARN_ON	2008-07-25 21:43:18 -07:00
atm	atm: fix const assignment/discard warnings in the ATM networking driver	2008-07-30 16:31:46 -07:00
ax25	ax25: Quick fix for making sure unaccepted sockets get destroyed.	2008-10-06 12:53:50 -07:00
bluetooth	[Bluetooth] Fix regression from using default link policy	2008-09-12 03:11:54 +02:00
bridge	bridge: don't allow setting hello time to zero	2008-09-08 13:46:54 -07:00
can	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
core	net: Fix netdev_run_todo dead-lock	2008-10-07 15:50:03 -07:00
dccp	dccp: Fix panic caused by too early termination of retransmission mechanism	2008-08-18 21:14:20 -07:00
decnet	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
econet	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
ethernet
ieee80211
ipv4	tcp: Fix possible double-ack w/ user dma	2008-10-07 15:31:19 -07:00
ipv6	XFRM,IPv6: initialize ip6_dst_blackhole_ops.kmem_cachep	2008-10-01 02:37:56 -07:00
ipx	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
irda	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2008-07-20 17:43:29 -07:00
iucv	iucv: Fix mismerge again.	2008-09-30 03:03:35 -07:00
key	af_key: Free dumping state on socket close	2008-10-01 05:17:54 -07:00
lapb
llc	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
mac80211	Revert "mac80211: Use IWEVASSOCREQIE instead of IWEVCUSTOM"	2008-09-05 12:38:09 -07:00
netfilter	netfilter: nf_conntrack_irc: make sure string is terminated before calling simple_strtoul	2008-09-07 18:21:24 -07:00
netlabel	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
netlink	net: convert BUG_TRAP to generic WARN_ON	2008-07-25 21:43:18 -07:00
netrom	netrom: Fix sock_orphan() use in nr_release	2008-10-06 12:54:57 -07:00
packet	net: convert BUG_TRAP to generic WARN_ON	2008-07-25 21:43:18 -07:00
rfkill	net: rfkill: add missing line break	2008-08-26 20:06:31 -04:00
rose	netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.	2008-07-22 14:16:42 -07:00
rxrpc	net/rxrpc: Use an IS_ERR test rather than a NULL test	2008-08-13 02:40:48 -07:00
sched	warn: Turn the netdev timeout WARN_ON() into a WARN()	2008-09-16 19:39:33 -07:00
sctp	sctp: Fix kernel panic while process protocol violation parameter	2008-09-30 05:32:24 -07:00
sunrpc	sunrpc: fix possible overrun on read of /proc/sys/sunrpc/transports	2008-09-01 14:24:24 -04:00
tipc	tipc: Don't use structure names which easily globally conflict.	2008-09-02 23:38:32 -07:00
unix	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2008-07-26 20:23:44 -07:00
wanrouter	wanmain.c doesn't need syncppp.h	2008-07-23 23:00:36 +02:00
wireless	net/wireless/Kconfig: clarify the description for CONFIG_WIRELESS_EXT_SYSFS	2008-09-02 15:03:19 -04:00
x25	netns: Use net_eq() to compare net-namespaces for optimization.	2008-07-19 22:34:43 -07:00
xfrm	ipsec: Fix pskb_expand_head corruption in xfrm_state_check_space	2008-09-30 02:03:19 -07:00
compat.c	flag parameters: paccept	2008-07-24 10:47:27 -07:00
Kconfig	net: Make "networking" one-click deselectable.	2008-07-30 03:27:53 -07:00
Makefile	vlan: uninline __vlan_hwaccel_rx	2008-07-08 03:23:36 -07:00
nonet.c
socket.c	sys_paccept: disable paccept() until API design is resolved	2008-09-23 08:09:14 -07:00
sysctl_net.c	missing bits of net-namespace / sysctl	2008-07-27 09:45:34 -07:00
TUNABLE