[PATCH] io_uring:IORING_SETUP_SQPOLL don't need to enter io_cqring_wait

[wu860403@gmail.com]

From: Liming Wu <19092205@suning.com>

When SETUP_IOPOLL and SETUP_SQPOLL are both enabled, app don't
need to enter io_cqring_wait too. If I misunderstand, please give
me some advise.

Signed-off-by Liming Wu <19092205@suning.com>
---
 io_uring.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/io_uring.c b/io_uring.c
index b12d33b..36e884f 100644
--- a/io_uring.c
+++ b/io_uring.c
@@ -7418,11 +7418,12 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit,
 		 * polling again, they can rely on io_sq_thread to do polling
 		 * work, which can reduce cpu usage and uring_lock contention.
 		 */
-		if (ctx->flags & IORING_SETUP_IOPOLL &&
-		    !(ctx->flags & IORING_SETUP_SQPOLL)) {
-			ret = io_iopoll_check(ctx, &nr_events, min_complete);
-		} else {
-			ret = io_cqring_wait(ctx, min_complete, sig, sigsz);
+		if (!(ctx->flags & IORING_SETUP_SQPOLL)) {
+		    if (ctx->flags & IORING_SETUP_IOPOLL) {
+		    	ret = io_iopoll_check(ctx, &nr_events, min_complete);
+		    } else {
+		    	ret = io_cqring_wait(ctx, min_complete, sig, sigsz);
+		    }
 		}
 	}
 
-- 
1.8.3.1