1 files changed, 7 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 1a65d78804409..48f4540d7dd50 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8042,6 +8042,13 @@ static int io_sq_thread(void *data)
 					needs_sched = false;
 					break;
 				}
+
+				/*
+				 * Ensure the store of the wakeup flag is not
+				 * reordered with the load of the SQ tail
+				 */
+				smp_mb();
+
 				if (io_sqring_entries(ctx)) {
 					needs_sched = false;
 					break;