On Wed, Mar 21, 2018 at 08:40:09AM +0100, Christoph Hellwig wrote: > ->get_poll_head returns the waitqueue that the poll operation is going > to sleep on. Note that this means we can only use a single waitqueue > for the poll, unlike some current drivers that use two waitqueues for > different events. But now that we have keyed wakeups and heavily use > those for poll there aren't that many good reason left to keep the > multiple waitqueues, and if there are any ->poll is still around, the > driver just won't support aio poll. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
