Sowmini Varadhan 80ad0d4a7a rds: rds_cong_queue_updates needs to defer the congestion update transmission ... When the RDS transport is TCP, we cannot inline the call to rds_send_xmit from rds_cong_queue_update because (a) we are already holding the sock_lock in the recv path, and will deadlock when tcp_setsockopt/tcp_sendmsg try to get the sock lock (b) cong_queue_update does an irqsave on the rds_cong_lock, and this will trigger warnings (for a good reason) from functions called out of sock_lock. This patch reverts the change introduced by 2fa57129d ("RDS: Bypass workqueue when queueing cong updates"). The patch has been verified for both RDS/TCP as well as RDS/RDMA to ensure that there are not regressions for either transport: - for verification of RDS/TCP a client-server unit-test was used, with the server blocked in gdb and thus unable to drain its rcvbuf, eventually triggering a RDS congestion update. - for RDS/RDMA, the standard IB regression tests were used Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-02-11 14:35:44 -08:00
..
af_rds.c
bind.c
cong.c	rds: rds_cong_queue_updates needs to defer the congestion update transmission	2015-02-11 14:35:44 -08:00
connection.c
ib_cm.c
ib_rdma.c
ib_recv.c	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
ib_ring.c
ib_send.c	net: rds: Remove repeated function names from debug output	2015-02-07 22:41:56 -08:00
ib_stats.c
ib_sysctl.c
ib.c
ib.h	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
info.c
info.h
iw_cm.c	net: rds: Remove repeated function names from debug output	2015-02-07 22:41:56 -08:00
iw_rdma.c
iw_recv.c	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
iw_ring.c
iw_send.c	net: rds: Remove repeated function names from debug output	2015-02-07 22:41:56 -08:00
iw_stats.c
iw_sysctl.c
iw.c
iw.h	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
Kconfig
loop.c
loop.h
Makefile
message.c	rds: Make rds_message_copy_from_user() return 0 on success.	2015-02-07 22:41:56 -08:00
page.c
rdma_transport.c
rdma_transport.h
rdma.c	rds: avoid calling sock_kfree_s() on allocation failure	2014-10-14 17:00:19 -04:00
rds.h	rds: switch rds_message_copy_from_user() to iov_iter	2014-11-24 05:16:43 -05:00
recv.c	put iov_iter into msghdr	2014-12-09 16:29:03 -05:00
send.c	net: introduce helper macro for_each_cmsghdr	2014-12-10 22:41:55 -05:00
stats.c
sysctl.c	net: rds: use correct size for max unacked packets and bytes	2015-02-04 16:07:27 -08:00
tcp_connect.c
tcp_listen.c
tcp_recv.c	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
tcp_send.c
tcp_stats.c
tcp.c
tcp.h	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
threads.c
transport.c