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Tom Parkin f6e16b299b l2tp: unhash l2tp sessions on delete, not on free 
If we postpone unhashing of l2tp sessions until the structure is freed, we
risk:

 1. further packets arriving and getting queued while the pseudowire is being
    closed down
 2. the recv path hitting "scheduling while atomic" errors in the case that
    recv drops the last reference to a session and calls l2tp_session_free
    while in atomic context

As such, l2tp sessions should be unhashed from l2tp_core data structures early
in the teardown process prior to calling pseudowire close.  For pseudowires
like l2tp_ppp which have multiple shutdown codepaths, provide an unhash hook.

Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 12:10:39 -04:00
..
9p Revert parts of "hlist: drop the node parameter from iterators" 2013-03-08 15:05:34 -08:00
802 mrp: make mrp_rcv static 2013-02-11 14:16:26 -05:00
8021q net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
appletalk hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
atm hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ax25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
batman-adv batman-adv: verify tt len does not exceed packet len 2013-03-11 22:59:47 +01:00
bluetooth hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
bridge bridge: Add support for setting BR_ROOT_BLOCK flag. 2013-03-17 12:41:29 -04:00
caif CAIF: fix sparse warning for caif_usb 2013-03-04 14:12:07 -05:00
can hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2013-03-12 09:22:42 -07:00
core rtnetlink: Mask the rta_type when range checking 2013-03-17 11:43:40 -04:00
dcb dcbnl: fix various netlink info leaks 2013-03-10 05:19:26 -04:00
dccp Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
decnet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
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: Fix endianness issue in is_addr_link_local(). 2013-03-10 16:49:35 -04:00
ipv4 udp: add encap_destroy callback 2013-03-20 12:10:38 -04:00
ipv6 udp: add encap_destroy callback 2013-03-20 12:10:38 -04:00
ipx hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
irda net/irda: Raise dtr in non-blocking open 2013-03-06 02:47:05 -05:00
iucv hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
key afkey: fix a typo 2013-03-07 16:26:45 -05:00
l2tp l2tp: unhash l2tp sessions on delete, not on free 2013-03-20 12:10:39 -04:00
lapb net/lapb: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
llc hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2013-03-06 10:21:17 -05:00
mac802154 Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
netfilter ipvs: remove extra rcu lock 2013-03-19 21:21:52 +09:00
netlabel netlabel: fix build problems when CONFIG_IPV6=n 2013-03-08 11:33:51 -05:00
netlink genetlink: trigger BUG_ON if a group name is too long 2013-03-20 12:05:51 -04:00
netrom hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
nfc NFC: llcp: Report error to pending sockets when a device is removed 2013-03-08 17:35:22 +01:00
openvswitch Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch 2013-03-15 09:00:39 -04:00
packet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
phonet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rds net/rds: zero last byte for strncpy 2013-03-08 00:35:44 -05:00
rfkill rfkill: don't use [delayed_]work_pending() 2012-12-28 13:40:16 -08:00
rose hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rxrpc Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sched pkt_sched: sch_qfq: remove a useless invocation of qfq_update_eligible 2013-03-06 02:47:05 -05:00
sctp sctp: don't break the loop while meeting the active_path so as to find the matched transport 2013-03-13 10:09:55 -04:00
sunrpc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-03-13 15:47:50 -07:00
tipc hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
unix hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
vmw_vsock VSOCK: Don't reject PF_VSOCK protocol 2013-02-18 15:02:51 -05:00
wimax
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2013-03-06 10:21:17 -05:00
x25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
xfrm hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
compat.c
Kconfig Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
nonet.c
socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
sysctl_net.c user_ns: get rid of duplicate code in net_ctl_permissions 2012-11-18 20:32:45 -05:00