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5d16dbcc31
linux/net/smc
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Karsten Graul 107529e31a net/smc: receive pending data after RCV_SHUTDOWN 
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>
2019-10-10 19:08:41 -07:00
..
af_smc.c net/smc: avoid fallback in case of non-blocking connect 2019-08-05 13:24:37 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
smc_cdc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
smc_cdc.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
smc_clc.c net: use new in_dev_ifa iterators 2019-06-02 18:06:26 -07:00
smc_clc.h net/smc: improve smc_conn_create reason codes 2019-04-12 10:50:56 -07:00
smc_close.c net/smc: wait for pending work before clcsock release_sock 2019-04-11 11:04:08 -07:00
smc_close.h net/smc: wait for pending work before clcsock release_sock 2019-04-11 11:04:08 -07:00
smc_core.c net/smc: fix SMCD link group creation with VLAN id 2019-10-10 19:08:41 -07:00
smc_core.h net/smc: improve smc_conn_create reason codes 2019-04-12 10:50:56 -07:00
smc_diag.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
smc_ib.c net/smc: Use rdma_read_gid_l2_fields to L2 fields 2019-05-03 11:10:03 -03:00
smc_ib.h net/smc: rework pnet table 2019-02-21 10:34:37 -08:00
smc_ism.c net/smc: fix a NULL pointer dereference 2019-04-11 11:04:08 -07:00
smc_ism.h net/smc: add SMC-D shutdown signal 2018-11-21 16:14:56 -08:00
smc_llc.c net/smc: preallocated memory for rdma work requests 2019-02-04 09:11:19 -08:00
smc_llc.h net/smc: add infrastructure to send delete rkey messages 2018-11-23 17:20:32 -08:00
smc_netns.h net/smc: add pnet table namespace support 2019-02-21 10:34:37 -08:00
smc_pnet.c genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
smc_pnet.h net/smc: consolidate function parameters 2019-04-12 10:50:56 -07:00
smc_rx.c net/smc: receive pending data after RCV_SHUTDOWN 2019-10-10 19:08:41 -07:00
smc_rx.h smc: add support for splice() 2018-05-04 11:45:06 -04:00
smc_tx.c net/smc: make sure EPOLLOUT is raised 2019-08-20 12:25:14 -07:00
smc_tx.h net/smc: eliminate cursor read and write calls 2018-07-23 10:57:14 -07:00
smc_wr.c net/smc: preallocated memory for rdma work requests 2019-02-04 09:11:19 -08:00
smc_wr.h net/smc: preallocated memory for rdma work requests 2019-02-04 09:11:19 -08:00
smc.h net/smc: nonblocking connect rework 2019-04-12 10:50:56 -07:00