Neil Horman 2cde6acd49 netpoll: Fix __netpoll_rcu_free so that it can hold the rtnl lock ... __netpoll_rcu_free is used to free netpoll structures when the rtnl_lock is already held. The mechanism is used to asynchronously call __netpoll_cleanup outside of the holding of the rtnl_lock, so as to avoid deadlock. Unfortunately, __netpoll_cleanup modifies pointers (dev->np), which means the rtnl_lock must be held while calling it. Further, it cannot be held, because rcu callbacks may be issued in softirq contexts, which cannot sleep. Fix this by converting the rcu callback to a work queue that is guaranteed to get scheduled in process context, so that we can hold the rtnl properly while calling __netpoll_cleanup Tested successfully by myself. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> CC: Cong Wang <amwang@redhat.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-02-11 19:19:33 -05:00
..
9p
802	mrp: make mrp_rcv static	2013-02-11 14:16:26 -05:00
8021q	netpoll: Fix __netpoll_rcu_free so that it can hold the rtnl lock	2013-02-11 19:19:33 -05:00
appletalk
atm	atm: use scnprintf() instead of sprintf()	2012-12-17 20:50:51 -08:00
ax25
batman-adv	Included changes:	2013-01-29 15:59:45 -05:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-08 18:02:14 -05:00
bridge	netpoll: Fix __netpoll_rcu_free so that it can hold the rtnl lock	2013-02-11 19:19:33 -05:00
caif	caif_usb: Make the driver name check more efficient	2012-12-09 00:34:02 -05:00
can	can: rework skb reserved data handling	2013-01-28 18:17:25 -05:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2013-01-02 17:32:49 -08:00
core	netpoll: Fix __netpoll_rcu_free so that it can hold the rtnl lock	2013-02-11 19:19:33 -05:00
dcb	net: Allow DCBnl to use other namespaces besides init_net	2012-12-10 14:09:01 -05:00
dccp	inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock	2012-12-14 13:14:07 -05:00
decnet	net neighbour, decnet: Ensure to align device private data on preferred alignment.	2013-02-11 00:21:44 -05:00
dns_resolver	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-12-16 15:40:50 -08:00
dsa	dsa: make dsa_switch_setup check for valid port names	2013-01-21 15:40:12 -05:00
ethernet	net: split eth_mac_addr for better error handling	2013-01-21 14:07:44 -05:00
ieee802154	6lowpan: use stack buffer instead of heap	2013-02-06 15:56:17 -05:00
ipv4	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-08 18:02:14 -05:00
ipv6	ipv6: by default join ff01::1 and in case of forwarding ff01::2 and ff05:2	2013-02-11 14:16:26 -05:00
ipx
irda	net: remove redundant check for timer pending state before del_timer	2013-02-04 13:26:49 -05:00
iucv	s390/irq: remove split irq fields from /proc/stat	2013-01-08 10:57:07 +01:00
key	xfrm: Convert xfrm_addr_cmp() to boolean xfrm_addr_equal().	2013-01-29 22:58:40 -05:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-08 18:02:14 -05:00
lapb
llc
mac80211	Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next	2013-01-30 14:22:19 -05:00
mac802154	wpan: use stack buffer instead of heap	2013-02-06 15:56:17 -05:00
netfilter	net: remove redundant check for timer pending state before del_timer	2013-02-04 13:26:49 -05:00
netlabel
netlink	netlink: Use FIELD_SIZEOF() in netlink_proto_init().	2013-01-09 23:38:23 -08:00
netrom
nfc	NFC: Use skb_copy_datagram_iovec	2013-01-11 14:56:32 +01:00
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-08 18:02:14 -05:00
packet	packet: fix leakage of tx_ring memory	2013-02-03 16:15:23 -05:00
phonet
rds	IB/rds: suppress incompatible protocol when version is known	2012-12-26 15:17:37 -08:00
rfkill	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-12-13 12:00:02 -08:00
rose
rxrpc	rxrpc: Use FIELD_SIZEOF() in af_rxrpc_init().	2013-01-09 23:38:24 -08:00
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-05 14:12:20 -05:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-08 18:02:14 -05:00
sunrpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-02-09 07:55:24 +11:00
tipc	tipc: refactor accept() code for improved readability	2012-12-07 17:23:24 -05:00
unix	unix: Use FIELD_SIZEOF() in af_unix_init().	2013-01-09 23:38:24 -08:00
vmw_vsock	VSOCK: Introduce VM Sockets	2013-02-10 19:41:08 -05:00
wimax
wireless	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem	2013-02-08 13:16:17 -05:00
x25
xfrm	xfrm: Convert xfrm_addr_cmp() to boolean xfrm_addr_equal().	2013-01-29 22:58:40 -05:00
compat.c
Kconfig	VSOCK: Introduce VM Sockets	2013-02-10 19:41:08 -05:00
Makefile	VSOCK: Introduce VM Sockets	2013-02-10 19:41:08 -05:00
nonet.c
socket.c	ethtool: fix sparse warning	2013-02-11 14:16:26 -05:00
sysctl_net.c