mptcp: update per unacked sequence on pkt reception

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So that we keep per unacked sequence number consistent; since
we update per msk data, use an atomic64 cmpxchg() to protect
against concurrent updates from multiple subflows.

Initialize the snd_una at connect()/accept() time.

Co-developed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
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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This commit is contained in:

Paolo Abeni 2020-03-27 14:48:42 -07:00 • committed by David S. Miller

parent 926bdeab55

commit cc9d256698

3 changed files with 49 additions and 6 deletions

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52

net/mptcp/options.c

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2

net/mptcp/protocol.c

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1

net/mptcp/protocol.h

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