mptcp: more accurate timeout

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As reported by Maxim, we have a lot of MPTCP-level
retransmissions when multilple links with different latencies
are in use.

This patch refactor the mptcp-level timeout accounting so that
the maximum of all the active subflow timeout is used. To avoid
traversing the subflow list multiple times, the update is
performed inside the packet scheduler.

Additionally clean-up a bit timeout handling.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Paolo Abeni 2021-08-13 15:15:41 -07:00 • committed by David S. Miller

parent e5f3155267

commit 33d41c9cd7

1 changed files with 37 additions and 23 deletions

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net/mptcp/protocol.c

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