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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@strlen.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.