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/openbmc/linux/net/mptcp/ |
H A D | protocol.h | 54f1944e Fri Oct 21 17:58:55 CDT 2022 Paolo Abeni <pabeni@redhat.com> mptcp: factor out mptcp_connect()
The current MPTCP connect implementation duplicates a bit of inet code and does not use nor provide a struct proto->connect callback, which in turn will not fit the upcoming fastopen implementation.
Refactor such implementation to use the common helper, moving the MPTCP-specific bits into mptcp_connect(). Additionally, avoid an indirect call to the subflow connect callback.
Note that the fastopen call-path invokes mptcp_connect() while already holding the subflow socket lock. Explicitly keep track of such path via a new MPTCP-level flag and handle the locking accordingly.
Additionally, track the connect flags in a new msk field to allow propagating them to the subflow inet_stream_connect call.
Fixes: d98a82a6afc7 ("mptcp: handle defer connect in mptcp_sendmsg") Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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H A D | protocol.c | 54f1944e Fri Oct 21 17:58:55 CDT 2022 Paolo Abeni <pabeni@redhat.com> mptcp: factor out mptcp_connect()
The current MPTCP connect implementation duplicates a bit of inet code and does not use nor provide a struct proto->connect callback, which in turn will not fit the upcoming fastopen implementation.
Refactor such implementation to use the common helper, moving the MPTCP-specific bits into mptcp_connect(). Additionally, avoid an indirect call to the subflow connect callback.
Note that the fastopen call-path invokes mptcp_connect() while already holding the subflow socket lock. Explicitly keep track of such path via a new MPTCP-level flag and handle the locking accordingly.
Additionally, track the connect flags in a new msk field to allow propagating them to the subflow inet_stream_connect call.
Fixes: d98a82a6afc7 ("mptcp: handle defer connect in mptcp_sendmsg") Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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