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linux-stable/net/mptcp
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Matthieu Baerts (NGI0) 47ab33e1d6 mptcp: sched: check both directions for backup 
commit b6a66e521a upstream.

The 'mptcp_subflow_context' structure has two items related to the
backup flags:

 - 'backup': the subflow has been marked as backup by the other peer

 - 'request_bkup': the backup flag has been set by the host

Before this patch, the scheduler was only looking at the 'backup' flag.
That can make sense in some cases, but it looks like that's not what we
wanted for the general use, because either the path-manager was setting
both of them when sending an MP_PRIO, or the receiver was duplicating
the 'backup' flag in the subflow request.

Note that the use of these two flags in the path-manager are going to be
fixed in the next commits, but this change here is needed not to modify
the behaviour.

Fixes: f296234c98 ("mptcp: Add handling of incoming MP_JOIN requests")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-11 12:36:00 +02:00
..
bpf.c bpf: Add bpf_skc_to_mptcp_sock_proto 2022-05-20 15:29:00 -07:00
crypto.c
crypto_test.c
ctrl.c mptcp: Add a per-namespace sysctl to set the default path manager type 2022-04-29 17:25:14 -07:00
diag.c mptcp: fix possible deadlock in subflow diag 2024-03-06 14:45:12 +00:00
Kconfig
Makefile Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-05-23 16:07:14 -07:00
mib.c mptcp: add more offered MIBs counter 2022-05-05 19:00:16 -07:00
mib.h mptcp: add more offered MIBs counter 2022-05-05 19:00:16 -07:00
mptcp_diag.c tcp: Access &tcp_hashinfo via net. 2022-09-20 10:21:49 -07:00
options.c mptcp: mptcp_parse_option() fix for MPTCPOPT_MP_JOIN 2024-01-25 15:27:49 -08:00
pm.c mptcp: update userspace pm infos 2023-06-14 11:15:27 +02:00
pm_netlink.c mptcp: pm: update add_addr counters after connect 2024-06-21 14:35:59 +02:00
pm_userspace.c mptcp: map v4 address to v6 when destroying subflow 2024-03-06 14:45:11 +00:00
protocol.c mptcp: sched: check both directions for backup 2024-08-11 12:36:00 +02:00
protocol.h mptcp: fix full TCP keep-alive support 2024-06-16 13:41:32 +02:00
sockopt.c mptcp: fix full TCP keep-alive support 2024-06-16 13:41:32 +02:00
subflow.c mptcp: don't account accept() of non-MPC client as fallback to TCP 2024-04-10 16:28:34 +02:00
syncookies.c
token.c
token_test.c