io_uring: fix stale comment and a few typos

	/*

	 * Now check if a free (going busy) or busy worker has the work

	 * currently running. If we find it there, we'll return CANCEL_RUNNING

	 * as an indication that we attempte to signal cancellation. The

	 * as an indication that we attempt to signal cancellation. The

	 * completion will run normally in this case.

	 */

	rcu_read_lock();

}

/*

 * Poll for a mininum of 'min' events. Note that if min == 0 we consider that a

 * Poll for a minimum of 'min' events. Note that if min == 0 we consider that a

 * non-spinning poll check - we'll still enter the driver poll loop, but only

 * as a non-spinning completion check.

 */

		/*

		 * Adjust the reqs sequence before the current one because it

		 * will consume a slot in the cq_ring and the the cq_tail

		 * will consume a slot in the cq_ring and the cq_tail

		 * pointer will be increased, otherwise other timeout reqs may

		 * return in advance without waiting for enough wait_nr.

		 */

}

/*

 * Fetch an sqe, if one is available. Note that s->sqe will point to memory

 * Fetch an sqe, if one is available. Note that req->sqe will point to memory

 * that is mapped by userspace. This means that care needs to be taken to

 * ensure that reads are stable, as we cannot rely on userspace always

 * being a good citizen. If members of the sqe are validated and then later

	struct io_ring_ctx *ctx = iowq->ctx;

	/*

	 * Wake up if we have enough events, or if a timeout occured since we

	 * Wake up if we have enough events, or if a timeout occurred since we

	 * started waiting. For timeouts, we always want to return to userspace,

	 * regardless of event count.

	 */