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

RDS: validate the requested traces user input against max supported

2017-01-06 22:14:26 -05:00

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_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

RDS: IB: split the mr registration and invalidation path

2017-01-02 14:02:47 -08:00

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

RDS/IW+IB: Set recv ring low water mark to 1/2 full.

2009-04-09 17:21:14 -07:00

ib_send.c

rds: Fix inaccurate accounting of unsignaled wrs

2017-10-26 17:35:57 +09:00

ib_stats.c

RDS: IB: add few useful cache stasts

2017-01-02 14:02:51 -08:00

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: 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

info.c

rds: fix an integer overflow test in rds_info_getsockopt()

2015-08-03 15:20:16 -07:00

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

RDS: Drop stale iWARP RDMA transport

2016-03-02 14:13:17 -05:00

loop.c

RDS: TCP: Hooks to set up a single connection path

2016-07-01 16:45:17 -04:00

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

rds: remove dead code

2016-12-26 21:35:39 -05:00

rdma_transport.c

RDS: RDMA: start rdma listening after init

2017-01-02 14:02:45 -08:00

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

rdma.c

rds: Fix NULL pointer dereference in __rds_rdma_map

2017-12-06 15:44:27 -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

rds.h

rds: Use atomic flag to track connections being destroyed

2018-01-05 13:39:18 -05:00

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

net/rds: zero last byte for strncpy

2013-03-08 00:35:44 -05:00

sysctl.c

net: rds: fix coding style issues

2016-06-18 21:34:09 -07:00

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

net: rds: fix const array syntax

2011-07-01 16:16:19 -07:00

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

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