io_uring: rename io_get_cqring

Rename io_get_cqring() into io_get_cqe() for consistency with SQ, and
just because the old name is not as clear.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a46a53e3f781de372f5632c184e61546b86515ce.1621201931.git.asml.silence@gmail.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

fs/io_uring.c

@@ -11,7 +11,7 @@
  * before writing the tail (using smp_load_acquire to read the tail will
  * do). It also needs a smp_mb() before updating CQ head (ordering the
  * entry load(s) with the head store), pairing with an implicit barrier
- * through a control-dependency in io_get_cqring (smp_store_release to
+ * through a control-dependency in io_get_cqe (smp_store_release to
  * store head will do). Failure to do so could lead to reading invalid
  * CQ entries.
  *
@@ -1368,7 +1368,7 @@ static inline unsigned int __io_cqring_events(struct io_ring_ctx *ctx)
 	return ctx->cached_cq_tail - READ_ONCE(ctx->rings->cq.head);
 }
 
-static inline struct io_uring_cqe *io_get_cqring(struct io_ring_ctx *ctx)
+static inline struct io_uring_cqe *io_get_cqe(struct io_ring_ctx *ctx)
 {
 	struct io_rings *rings = ctx->rings;
 	unsigned tail, mask = ctx->cq_entries - 1;
@@ -1440,7 +1440,7 @@ static bool __io_cqring_overflow_flush(struct io_ring_ctx *ctx, bool force)
 	posted = false;
 	spin_lock_irqsave(&ctx->completion_lock, flags);
 	while (!list_empty(&ctx->cq_overflow_list)) {
-		struct io_uring_cqe *cqe = io_get_cqring(ctx);
+		struct io_uring_cqe *cqe = io_get_cqe(ctx);
 		struct io_overflow_cqe *ocqe;
 
 		if (!cqe && !force)
@@ -1562,7 +1562,7 @@ static inline bool __io_cqring_fill_event(struct io_ring_ctx *ctx, u64 user_data
 	 * submission (by quite a lot). Increment the overflow count in
 	 * the ring.
 	 */
-	cqe = io_get_cqring(ctx);
+	cqe = io_get_cqe(ctx);
 	if (likely(cqe)) {
 		WRITE_ONCE(cqe->user_data, user_data);
 		WRITE_ONCE(cqe->res, res);