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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>		13 years ago
..
Kconfig	…
Makefile	…
af_rds.c	rds: Make rds_sock_lock BH rather than IRQ safe.	13 years ago
bind.c	…
cong.c	…
connection.c	…
ib.c	…
ib.h	rds_rdma: don't assume infiniband device is PCI	13 years ago
ib_cm.c	RDS: use gfp flags from caller in conn_alloc()	13 years ago
ib_rdma.c	…
ib_recv.c	Merge branch 'kmap_atomic' of git://github.com/congwang/linux	13 years ago
ib_ring.c	…
ib_send.c	…
ib_stats.c	…
ib_sysctl.c	net: Convert all sysctl registrations to register_net_sysctl	13 years ago
info.c	rds: remove the second argument of k[un]map_atomic()	13 years ago
info.h	…
iw.c	…
iw.h	…
iw_cm.c	RDS: use gfp flags from caller in conn_alloc()	13 years ago
iw_rdma.c	RDS: Remove some unused iWARP code	13 years ago
iw_recv.c	Merge branch 'kmap_atomic' of git://github.com/congwang/linux	13 years ago
iw_ring.c	…
iw_send.c	…
iw_stats.c	…
iw_sysctl.c	net: Convert all sysctl registrations to register_net_sysctl	13 years ago
loop.c	RDS: use gfp flags from caller in conn_alloc()	13 years ago
loop.h	…
message.c	…
page.c	net: Fix (nearly-)kernel-doc comments for various functions	13 years ago
rdma.c	…
rdma_transport.c	…
rdma_transport.h	…
rds.h	rds: remove the second argument of k[un]map_atomic()	13 years ago
recv.c	rds: set correct msg_namelen	13 years ago
send.c	RDS: fix rds-ping spinlock recursion	13 years ago
stats.c	…
sysctl.c	net: Convert all sysctl registrations to register_net_sysctl	13 years ago
tcp.c	…
tcp.h	…
tcp_connect.c	rds: Don't disable BH on BH context	13 years ago
tcp_listen.c	rds: Don't disable BH on BH context	13 years ago
tcp_recv.c	rds: Don't disable BH on BH context	13 years ago
tcp_send.c	rds: Don't disable BH on BH context	13 years ago
tcp_stats.c	…
threads.c	…
transport.c	…