Sowmini Varadhan 3db6e0d172 rds: use RCU to synchronize work-enqueue with connection teardown ... rds_sendmsg() can enqueue work on cp_send_w from process context, but it should not enqueue this work if connection teardown has commenced (else we risk enquing work after rds_conn_path_destroy() has assumed that all work has been cancelled/flushed). Similarly some other functions like rds_cong_queue_updates and rds_tcp_data_ready are called in softirq context, and may end up enqueuing work on rds_wq after rds_conn_path_destroy() has assumed that all workqs are quiesced. Check the RDS_DESTROY_PENDING bit and use rcu synchronization to avoid all these races. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-01-05 13:39:18 -05:00
..
af_rds.c
bind.c	rds; Reset rs->rs_bound_addr in rds_add_bound() failure path	2017-12-27 13:37:27 -05:00
cong.c	rds: use RCU to synchronize work-enqueue with connection teardown	2018-01-05 13:39:18 -05:00
connection.c	rds: use RCU to synchronize work-enqueue with connection teardown	2018-01-05 13:39:18 -05:00
ib.c	RDS: IB: Limit the scope of has_fr/has_fmr variables	2017-10-05 21:16:33 -07:00
ib.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
ib_cm.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-15 11:59:10 -07:00
ib_fmr.c	net/rds/ib_fmr.c: use kmalloc_array_node()	2017-11-15 18:21:02 -08:00
ib_frmr.c
ib_mr.h	rds: ib: add the static type to the function	2017-03-13 23:20:05 -07:00
ib_rdma.c	RDS: IB: Initialize max_items based on underlying device attributes	2017-10-05 21:16:33 -07:00
ib_recv.c	rds: ib: Fix NULL pointer dereference in debug code	2017-11-10 14:54:47 +09:00
ib_ring.c
ib_send.c	rds: Fix inaccurate accounting of unsignaled wrs	2017-10-26 17:35:57 +09:00
ib_stats.c
ib_sysctl.c
info.c
info.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig
loop.c
loop.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
message.c	net, rds: convert rds_message.m_refcount from atomic_t to refcount_t	2017-07-04 22:35:18 +01:00
page.c
rdma.c	rds: Fix NULL pointer dereference in __rds_rdma_map	2017-12-06 15:44:27 -05:00
rdma_transport.c
rdma_transport.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rds.h	rds: Use atomic flag to track connections being destroyed	2018-01-05 13:39:18 -05:00
rds_single_path.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
recv.c	net, rds: convert rds_incoming.i_refcount from atomic_t to refcount_t	2017-07-04 22:35:17 +01:00
send.c	rds: use RCU to synchronize work-enqueue with connection teardown	2018-01-05 13:39:18 -05:00
stats.c
sysctl.c
tcp.c	rds: tcp: cleanup if kmem_cache_alloc fails in rds_tcp_conn_alloc()	2017-12-27 13:37:27 -05:00
tcp.h	rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete	2017-12-01 15:25:15 -05:00
tcp_connect.c	rds: Use atomic flag to track connections being destroyed	2018-01-05 13:39:18 -05:00
tcp_listen.c	rds: tcp: use sock_create_lite() to create the accept socket	2017-07-08 11:16:16 +01:00
tcp_recv.c	rds: use RCU to synchronize work-enqueue with connection teardown	2018-01-05 13:39:18 -05:00
tcp_send.c	rds: use RCU to synchronize work-enqueue with connection teardown	2018-01-05 13:39:18 -05:00
tcp_stats.c
threads.c	rds: use RCU to synchronize work-enqueue with connection teardown	2018-01-05 13:39:18 -05:00
transport.c	rds: remove unnecessary returned value check	2017-03-03 09:51:22 -08:00