mptcp: use mptcp release_cb for delayed tasks

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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>

...

This commit is contained in:

Paolo Abeni 2020-11-27 11:10:27 +01:00 • committed by Jakub Kicinski

parent 7439d687b7

commit 6e628cd3a8

4 changed files with 168 additions and 117 deletions

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18

net/mptcp/options.c

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250

net/mptcp/protocol.c

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3

net/mptcp/protocol.h

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14

net/mptcp/subflow.c

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