linux/net/smc
Wen Gu fb0aa0781a net/smc: avoid overwriting when adjusting sock bufsizes
When copying smc settings to clcsock, avoid setting clcsock's sk_sndbuf
to sysctl_tcp_wmem[1], since this may overwrite the value set by
tcp_sndbuf_expand() in TCP connection establishment.

And the other setting sk_{snd|rcv}buf to sysctl value in
smc_adjust_sock_bufsizes() can also be omitted since the initialization
of smc sock and clcsock has set sk_{snd|rcv}buf to smc.sysctl_{w|r}mem
or ipv4_sysctl_tcp_{w|r}mem[1].

Fixes: 30c3c4a449 ("net/smc: Use correct buffer sizes when switching between TCP and SMC")
Link: https://lore.kernel.org/r/5eaf3858-e7fd-4db8-83e8-3d7a3e0e9ae2@linux.alibaba.com
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>, too.
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-05 09:42:57 +01:00
..
af_smc.c net/smc: avoid overwriting when adjusting sock bufsizes 2024-06-05 09:42:57 +01:00
Kconfig net/smc: introduce loopback-ism for SMC intra-OS shortcut 2024-04-30 13:24:48 +02:00
Makefile net/smc: introduce loopback-ism for SMC intra-OS shortcut 2024-04-30 13:24:48 +02:00
smc_cdc.c net/smc: adapt cursor update when sndbuf and peer DMB are merged 2024-04-30 13:24:48 +02:00
smc_cdc.h
smc_clc.c net/smc: Avoid -Wflex-array-member-not-at-end warnings 2024-04-03 11:01:30 +01:00
smc_clc.h net/smc: Avoid -Wflex-array-member-not-at-end warnings 2024-04-03 11:01:30 +01:00
smc_close.c
smc_close.h
smc_core.c net/smc: {at|de}tach sndbuf to peer DMB if supported 2024-04-30 13:24:48 +02:00
smc_core.h net/smc: {at|de}tach sndbuf to peer DMB if supported 2024-04-30 13:24:48 +02:00
smc_diag.c
smc_ib.c net/smc: fix neighbour and rtable leak in smc_ib_find_route() 2024-05-09 10:03:43 +02:00
smc_ib.h
smc_ism.c net/smc: add operations to merge sndbuf with peer DMB 2024-04-30 13:24:48 +02:00
smc_ism.h net/smc: add operations to merge sndbuf with peer DMB 2024-04-30 13:24:48 +02:00
smc_llc.c
smc_llc.h
smc_loopback.c net/smc: implement DMB-merged operations of loopback-ism 2024-04-30 13:24:49 +02:00
smc_loopback.h net/smc: implement DMB-merged operations of loopback-ism 2024-04-30 13:24:49 +02:00
smc_netlink.c
smc_netlink.h
smc_netns.h
smc_pnet.c
smc_pnet.h
smc_rx.c net: add sk_wake_async_rcu() helper 2024-03-29 15:03:11 -07:00
smc_rx.h
smc_stats.c
smc_stats.h
smc_sysctl.c net: Remove ctl_table sentinel elements from several networking subsystems 2024-05-03 13:29:42 +01:00
smc_sysctl.h
smc_tracepoint.c
smc_tracepoint.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
smc_tx.c
smc_tx.h
smc_wr.c
smc_wr.h
smc.h