mptcp: defer freeing of cached ext until last moment

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access to msk->cached_ext is only legal if the msk is locked or all
concurrent accesses are impossible.

Furthermore, once we start to tear down, we must make sure nothing else
can step in and allocate a new cached ext.

So place this code in the destroy callback where it belongs.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Florian Westphal 2020-01-29 15:54:43 +01:00 • committed by David S. Miller

parent 44efc78d0e

commit c9fd9c5f4b

1 changed files with 4 additions and 2 deletions

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net/mptcp/protocol.c

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