Karsten Graul ea438df46e net/smc: receive pending data after RCV_SHUTDOWN ...

[ Upstream commit 107529e31a ]

smc_rx_recvmsg() first checks if data is available, and then if
RCV_SHUTDOWN is set. There is a race when smc_cdc_msg_recv_action() runs
in between these 2 checks, receives data and sets RCV_SHUTDOWN.
In that case smc_rx_recvmsg() would return from receive without to
process the available data.
Fix that with a final check for data available if RCV_SHUTDOWN is set.
Move the check for data into a function and call it twice.
And use the existing helper smc_rx_data_available().

Fixes: 952310ccf2 ("smc: receive data from RMBE")
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-01-27 14:51:18 +01:00

..

af_smc.c

net/smc: do not schedule tx_work in SMC_CLOSED state

2019-08-09 17:52:32 +02:00

Kconfig

net/smc: remove Kconfig warning

2017-07-29 11:22:58 -07:00

Makefile

net/smc: add base infrastructure for SMC-D and ISM

2018-06-30 20:42:25 +09:00

smc_cdc.c

net/smc: fix byte_order for rx_curs_confirmed

2019-12-05 09:21:09 +01:00

smc_cdc.h

net/smc: fix byte_order for rx_curs_confirmed

2019-12-05 09:21:09 +01:00

smc_clc.c

net/smc: fix sizeof to int comparison

2018-09-18 20:11:43 -07:00

smc_clc.h

net/smc: provide fallback reason code

2018-07-25 22:25:53 -07:00

smc_close.c

net/smc: enable fallback for connection abort in state INIT

2018-09-18 20:11:43 -07:00

smc_close.h

net/smc: replace sock_put worker by socket refcounting

2018-01-26 10:41:56 -05:00

smc_core.c

net/smc: prevent races between smc_lgr_terminate() and smc_conn_free()

2019-12-05 09:21:08 +01:00

smc_core.h

net/smc: improve delete link processing

2018-07-25 22:25:53 -07:00

smc_diag.c

net/smc: original socket family in inet_sock_diag

2020-01-27 14:50:20 +01:00

smc_ib.c

RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr

2018-08-17 16:45:51 -06:00

smc_ib.h

net/smc: use correct vlan gid of RoCE device

2018-07-25 22:25:53 -07:00

smc_ism.c

net/smc: send response to test link signal

2018-08-10 14:38:43 -07:00

smc_ism.h

net/smc: add base infrastructure for SMC-D and ISM

2018-06-30 20:42:25 +09:00

smc_llc.c

net/smc: improve delete link processing

2018-07-25 22:25:53 -07:00

smc_llc.h

net/smc: improve delete link processing

2018-07-25 22:25:53 -07:00

smc_pnet.c

smc: generic netlink family should be __ro_after_init

2018-09-20 07:49:55 -07:00

smc_pnet.h

net/smc: use correct vlan gid of RoCE device

2018-07-25 22:25:53 -07:00

smc_rx.c

net/smc: receive pending data after RCV_SHUTDOWN

2020-01-27 14:51:18 +01:00

smc_rx.h

smc: add support for splice()

2018-05-04 11:45:06 -04:00

smc_tx.c

net/smc: do not wait under send_lock

2019-12-17 20:35:33 +01:00

smc_tx.h

net/smc: eliminate cursor read and write calls

2018-07-23 10:57:14 -07:00

smc_wr.c

net/smc: use after free fix in smc_wr_tx_put_slot()

2019-12-13 08:51:34 +01:00

smc_wr.h

net/smc: Simplify ib_post_(send|recv|srq_recv)() calls

2018-07-24 16:06:37 -06:00

smc.h

net/smc: fix smc_poll in SMC_INIT state

2019-03-19 13:12:41 +01:00