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linux-stable/net/smc
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Guangguan Wang 8d75d66ff1 net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending 
[ Upstream commit f3c46e41b3 ]

Non blocking sendmsg will return -EAGAIN when any signal pending
and no send space left, while non blocking recvmsg return -EINTR
when signal pending and no data received. This may makes confused.
As TCP returns -EAGAIN in the conditions described above. Align the
behavior of smc with TCP.

Fixes: 846e344eb7 ("net/smc: add receive timeout check")
Signed-off-by: Guangguan Wang <guangguan.wang@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Link: https://lore.kernel.org/r/20220512030820.73848-1-guangguan.wang@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-05-18 10:26:51 +02:00
..
af_smc.c net/smc: sync err code when tcp connection was refused 2022-05-09 09:14:36 +02:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile net/smc: Add SMC statistics support 2021-06-16 12:54:02 -07:00
smc.h net/smc: Forward wakeup to smc socket waitqueue after fallback 2022-02-08 18:34:09 +01:00
smc_cdc.c net/smc: fix kernel panic caused by race of smc_sock 2022-01-05 12:42:36 +01:00
smc_cdc.h net/smc: fix kernel panic caused by race of smc_sock 2022-01-05 12:42:36 +01:00
smc_clc.c net/smc: add missing error check in smc_clc_prfx_set() 2021-09-21 10:54:16 +01:00
smc_clc.h net/smc: Add support for obtaining system information 2020-12-01 17:56:13 -08:00
smc_close.c net/smc: Keep smc_close_final rc during active close 2021-12-08 09:04:50 +01:00
smc_close.h net/smc: remove close abort worker 2019-10-22 11:23:44 -07:00
smc_core.c net/smc: correct settings of RMB window update limit 2022-04-13 20:59:07 +02:00
smc_core.h net/smc: Reset conn->lgr when link group registration fails 2022-01-27 11:03:53 +01:00
smc_diag.c net/smc: Introduce SMCR get link command 2020-12-01 17:56:13 -08:00
smc_ib.c net/smc: fix kernel panic caused by race of smc_sock 2022-01-05 12:42:36 +01:00
smc_ib.h net/smc: fix kernel panic caused by race of smc_sock 2022-01-05 12:42:36 +01:00
smc_ism.c net/smc: no need to flush smcd_dev's event_wq before destroying it 2021-06-03 13:54:49 -07:00
smc_ism.h net/smc: Add support for obtaining SMCD device list 2020-12-01 17:56:13 -08:00
smc_llc.c net/smc: don't send CDC/LLC message if link not ready 2022-01-05 12:42:36 +01:00
smc_llc.h net/smc: move add link processing for new device into llc layer 2020-07-19 15:30:22 -07:00
smc_netlink.c net/smc: Add netlink support for SMC fallback statistics 2021-06-16 12:54:02 -07:00
smc_netlink.h net/smc: Add netlink support for SMC fallback statistics 2021-06-16 12:54:02 -07:00
smc_netns.h net/smc: introduce list of pnetids for Ethernet devices 2020-09-28 15:19:03 -07:00
smc_pnet.c net/smc: Fix NULL pointer dereference in smc_pnet_find_ib() 2022-04-20 09:34:11 +02:00
smc_pnet.h net/smc: Use a mutex for locking "struct smc_pnettable" 2022-03-02 11:47:59 +01:00
smc_rx.c net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending 2022-05-18 10:26:51 +02:00
smc_rx.h
smc_stats.c net/smc: Fix ENODATA tests in smc_nl_get_fback_stats() 2021-06-21 12:16:58 -07:00
smc_stats.h net/smc: Make SMC statistics network namespace aware 2021-06-16 12:54:02 -07:00
smc_tx.c net/smc: Send directly when TCP_CORK is cleared 2022-04-13 20:59:02 +02:00
smc_tx.h net/smc: Send directly when TCP_CORK is cleared 2022-04-13 20:59:02 +02:00
smc_wr.c net/smc: fix kernel panic caused by race of smc_sock 2022-01-05 12:42:36 +01:00
smc_wr.h net/smc: fix kernel panic caused by race of smc_sock 2022-01-05 12:42:36 +01:00