[MPTCP] Re: [PATCH net-next 6/6] mptcp: use mptcp release_cb for delayed tasks

[Mat Martineau <mathew.j.martineau at linux.intel.com>]

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On Fri, 27 Nov 2020, Paolo Abeni wrote:

> We have some tasks triggered by the subflow receive path
> which require to access the msk socket status, specifically:
> mptcp_clean_una() and mptcp_push_pending()
>
> We have almost everything in place to defer to the msk
> release_cb such tasks when the msk sock is owned.
>
> Since the worker is no more used to clean the acked data,
> for fallback sockets we need to explicitly flush them.
>
> As an added bonus we can move the wake-up code in __mptcp_clean_una(),
> simplify a lot mptcp_poll() and move the timer update under
> the data lock.
>
> The worker is now used only to process and send DATA_FIN
> packets and do the mptcp-level retransmissions.
>
> Acked-by: Florian Westphal <fw(a)strlen.de>
> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com>
> ---
> net/mptcp/options.c  |  18 +++-
> net/mptcp/protocol.c | 250 ++++++++++++++++++++++++++-----------------
> net/mptcp/protocol.h |   3 +
> net/mptcp/subflow.c  |  14 +--
> 4 files changed, 168 insertions(+), 117 deletions(-)

Reviewed-by: Mat Martineau <mathew.j.martineau(a)linux.intel.com>

--
Mat Martineau
Intel