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	treewide: fix synchronize_rcu() in comments	2014-08-28 15:01:24 +02:00
bind.c	net: replace macros net_random and net_srandom with direct calls to prandom	2014-01-14 15:15:25 -08:00
cong.c	rds: rds_cong_queue_updates needs to defer the congestion update transmission	2015-02-11 14:35:44 -08:00
connection.c	inet: convert inet_ehash_secret and ipv6_hash_secret to net_get_random_once	2013-10-19 19:45:35 -04:00
ib_cm.c	IB/rds: suppress incompatible protocol when version is known	2012-12-26 15:17:37 -08:00
ib_rdma.c	net: Replace get_cpu_var through this_cpu_ptr	2014-08-26 13:45:47 -04:00
ib_recv.c	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
ib_ring.c	RDS/IW+IB: Set recv ring low water mark to 1/2 full.	2009-04-09 17:21:14 -07:00
ib_send.c	net: rds: Remove repeated function names from debug output	2015-02-07 22:41:56 -08:00
ib_stats.c	RDS: Move atomic stats from general to ib-specific area	2010-09-08 18:12:20 -07:00
ib_sysctl.c	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
ib.c	rds: prevent dereference of a NULL device	2013-12-27 12:33:58 -05:00
ib.h	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
info.c	rds: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:28 +08:00
info.h	RDS: Info and stats	2009-02-26 23:39:25 -08:00
iw_cm.c	net: rds: Remove repeated function names from debug output	2015-02-07 22:41:56 -08:00
iw_rdma.c	RDS: Remove some unused iWARP code	2012-01-12 20:05:28 -08:00
iw_recv.c	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
iw_ring.c	RDS/IW+IB: Set recv ring low water mark to 1/2 full.	2009-04-09 17:21:14 -07:00
iw_send.c	net: rds: Remove repeated function names from debug output	2015-02-07 22:41:56 -08:00
iw_stats.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-09-15 09:39:44 -07:00
iw_sysctl.c	rds: remove the unneed NULL checking	2014-05-09 15:59:45 -04:00
iw.c	rds: prevent dereference of a NULL device in rds_iw_laddr_check	2014-03-31 16:25:52 -04:00
iw.h	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
Kconfig	net/rds: remove depends on CONFIG_EXPERIMENTAL	2013-01-11 11:40:02 -08:00
loop.c	RDS: use gfp flags from caller in conn_alloc()	2012-03-22 19:29:58 -04:00
loop.h	RDS: loopback	2009-02-26 23:39:26 -08:00
Makefile	Net: rds: Makefile: Remove deprecated items	2010-11-22 08:16:15 -08:00
message.c	rds: Make rds_message_copy_from_user() return 0 on success.	2015-02-07 22:41:56 -08:00
page.c	net: Fix (nearly-)kernel-doc comments for various functions	2012-07-10 23:13:45 -07:00
rdma_transport.c	RDS/RDMA: Replace comma with semicolon	2014-05-30 17:48:58 -07:00
rdma_transport.h	rds: make local functions/variables static	2010-10-21 04:26:39 -07:00
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	net/rds: zero last byte for strncpy	2013-03-08 00:35:44 -05:00
sysctl.c	net: rds: use correct size for max unacked packets and bytes	2015-02-04 16:07:27 -08:00
tcp_connect.c	net/rds: do proper house keeping if connection fails in rds_tcp_conn_connect	2014-10-03 12:51:59 -07:00
tcp_listen.c	rds/tcp_listen: Replace comma with semicolon	2014-05-30 17:48:58 -07:00
tcp_recv.c	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
tcp_send.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
tcp_stats.c	net: rds: fix const array syntax	2011-07-01 16:16:19 -07:00
tcp.c	net: Fix files explicitly needing to include module.h	2011-10-31 19:30:28 -04:00
tcp.h	rds: switch ->inc_copy_to_user() to passing iov_iter	2014-11-24 05:16:43 -05:00
threads.c	net/rds: call rds_conn_drop instead of open code it at rds_connect_complete	2014-10-03 12:51:59 -07:00
transport.c	RDS: have sockets get transport module references	2010-09-08 18:16:47 -07:00