Al Viro 3ad6f93e98 annotate poll-related wait keys ...

__poll_t is also used as wait key in some waitqueues.
Verify that wait_..._poll() gets __poll_t as key and
provide a helper for wakeup functions to get back to
that __poll_t value.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2017-11-27 16:19:54 -05:00

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