jeff.liu 5175a5e76b RDS: fix rds-ping spinlock recursion ... This is the revised patch for fixing rds-ping spinlock recursion according to Venkat's suggestions. RDS ping/pong over TCP feature has been broken for years(2.6.39 to 3.6.0) since we have to set TCP cork and call kernel_sendmsg() between ping/pong which both need to lock "struct sock *sk". However, this lock has already been hold before rds_tcp_data_ready() callback is triggerred. As a result, we always facing spinlock resursion which would resulting in system panic. Given that RDS ping is only used to test the connectivity and not for serious performance measurements, we can queue the pong transmit to rds_wq as a delayed response. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> CC: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com> CC: David S. Miller <davem@davemloft.net> CC: James Morris <james.l.morris@oracle.com> Signed-off-by: Jie Liu <jeff.liu@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-10-09 13:57:23 -04:00
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9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
802	tokenring: delete all remaining driver support	2012-05-15 20:23:16 -04:00
8021q	vlan: don't deliver frames for unknown vlans to protocols	2012-10-08 15:21:55 -04:00
appletalk	userns: Print out socket uids in a user namespace aware fashion.	2012-08-14 21:48:06 -07:00
atm	net🏧fix up ENOIOCTLCMD error handling	2012-08-31 16:14:33 -04:00
ax25	userns: Convert net/ax25 to use kuid_t where appropriate	2012-08-14 21:49:42 -07:00
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-09-28 14:40:49 -04:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
bridge	netlink: add attributes to fdb interface	2012-10-01 18:39:44 -04:00
caif	caif: move the dereference below the NULL test	2012-09-10 16:13:31 -04:00
can	sections: fix section conflicts in net/can	2012-10-06 03:04:45 +09:00
ceph	rbtree: empty nodes have no color	2012-10-09 16:22:32 +09:00
core	vlan: don't deliver frames for unknown vlans to protocols	2012-10-08 15:21:55 -04:00
dcb	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
dccp	dccp: fix info leak via getsockopt(DCCP_SOCKOPT_CCID_TX_INFO)	2012-08-15 21:36:31 -07:00
decnet	sections: fix section conflicts in net	2012-10-06 03:04:45 +09:00
dns_resolver	userns: net: Call key_alloc with GLOBAL_ROOT_UID, GLOBAL_ROOT_GID instead of 0, 0	2012-09-13 18:28:04 -07:00
dsa	workqueue: deprecate flush[_delayed]_work_sync()	2012-08-20 14:51:24 -07:00
ethernet	ipx: move peII functions	2012-07-19 10:48:00 -07:00
ieee802154	net/ieee802154/6lowpan.c: Remove unecessary semicolon	2012-09-18 16:08:19 -04:00
ipv4	ipv4: Add FLOWI_FLAG_KNOWN_NH	2012-10-08 17:42:36 -04:00
ipv6	ipv6: gro: fix PV6_GRO_CB(skb)->proto problem	2012-10-08 15:40:43 -04:00
ipx	userns: Print out socket uids in a user namespace aware fashion.	2012-08-14 21:48:06 -07:00
irda	silence some noisy printks in irda	2012-10-04 15:53:48 -04:00
iucv	net: remove skb_orphan_try()	2012-06-15 15:30:15 -07:00
key	net/key/af_key.c: add range checks on ->sadb_x_policy_len	2012-10-01 17:15:06 -04:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-09-28 14:40:49 -04:00
lapb	lapb: Neaten debugging	2012-05-17 18:45:20 -04:00
llc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
mac80211	mac80211: don't send delBA on addBA failure	2012-09-21 16:14:14 +02:00
mac802154	mac802154: sparse warnings: make symbols static	2012-07-12 07:54:45 -07:00
netfilter	ipvs: fix ARP resolving for direct routing mode	2012-10-08 17:42:36 -04:00
netlabel	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
netlink	netlink: add reference of module in netlink_dump_start	2012-10-07 00:30:56 -04:00
netrom	net: change return values from -EACCES to -EPERM	2012-09-21 13:58:08 -04:00
nfc	Remove noisy printks from llcp_sock_connect	2012-10-04 15:58:47 -04:00
openvswitch	net/openvswitch/vport.c: Remove unecessary semicolon	2012-09-18 16:08:19 -04:00
packet	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
phonet	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
rds	RDS: fix rds-ping spinlock recursion	2012-10-09 13:57:23 -04:00
rfkill	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
rose
rxrpc	userns: net: Call key_alloc with GLOBAL_ROOT_UID, GLOBAL_ROOT_GID instead of 0, 0	2012-09-13 18:28:04 -07:00
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-10-06 03:11:59 +09:00
sunrpc	Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2012-10-02 09:54:49 -07:00
tipc	tipc: prevent dropped connections due to rcvbuf overflow	2012-10-04 15:53:48 -04:00
unix	af_unix: old_cred is surplus	2012-09-17 13:00:13 -04:00
wanrouter	wanmain: comparing array with NULL	2012-07-24 13:55:21 -07:00
wimax
wireless	Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next	2012-09-30 02:30:16 -04:00
x25	net: Fix (nearly-)kernel-doc comments for various functions	2012-07-10 23:13:45 -07:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
compat.c	make get_file() return its argument	2012-09-26 21:10:25 -04:00
Kconfig	net: Add INET dependency on aes crypto for the sake of TCP fastopen.	2012-09-04 14:20:14 -04:00
Makefile	econet: remove ancient bug ridden protocol	2012-05-18 01:35:08 -04:00
nonet.c
socket.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
sysctl_net.c	net: delete all instances of special processing for token ring	2012-05-15 20:14:35 -04:00