io_uring: split poll and poll_remove structs

 */

struct io_poll_iocb {

	struct file			*file;

	union {

	struct wait_queue_head		*head;

		u64			addr;

	};

	__poll_t			events;

	bool				done;

	bool				canceled;

	struct wait_queue_entry		wait;

};

struct io_poll_remove {

	struct file			*file;

	u64				addr;

};

struct io_close {

	struct file			*file;

	struct file			*put_file;

		struct file		*file;

		struct io_rw		rw;

		struct io_poll_iocb	poll;

		struct io_poll_remove	poll_remove;

		struct io_accept	accept;

		struct io_sync		sync;

		struct io_cancel	cancel;

	    sqe->poll_events)

		return -EINVAL;

	req->poll.addr = READ_ONCE(sqe->addr);

	req->poll_remove.addr = READ_ONCE(sqe->addr);

	return 0;

}

static int io_poll_remove(struct io_kiocb *req)

{

	struct io_ring_ctx *ctx = req->ctx;

	u64 addr;

	int ret;

	addr = req->poll.addr;

	spin_lock_irq(&ctx->completion_lock);

	ret = io_poll_cancel(ctx, addr);

	ret = io_poll_cancel(ctx, req->poll_remove.addr);

	spin_unlock_irq(&ctx->completion_lock);

	if (ret < 0)