WSL2-Linux-Kernel/include/trace
Matthieu Baerts (NGI0) 42c7f7ac9a mptcp: sched: check both directions for backup
commit b6a66e521a2032f7fcba2af5a9bcbaeaa19b7ca3 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>
[ Conflicts in protocol.c, because the context has changed in commit
  3ce0852c86 ("mptcp: enforce HoL-blocking estimation"), which is not
  in this version. This commit is unrelated to this modification. ]
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-19 05:45:47 +02:00
..
events mptcp: sched: check both directions for backup 2024-08-19 05:45:47 +02:00
misc NFSD: add CB_RECALL_ANY tracepoints 2024-04-10 16:19:24 +02:00
bpf_probe.h tracing: Introduce helpers to safely handle dynamic-sized sockaddrs 2023-05-24 17:36:50 +01:00
define_trace.h tracepoint: Optimize using static_call() 2020-09-01 09:58:06 +02:00
perf.h tracing: Introduce helpers to safely handle dynamic-sized sockaddrs 2023-05-24 17:36:50 +01:00
syscall.h tracepoints: Migrate to use SYSCALL_WORK flag 2020-11-16 21:53:15 +01:00
trace_events.h tracing: Introduce helpers to safely handle dynamic-sized sockaddrs 2023-05-24 17:36:50 +01:00