int ret = io_msg_grab_file(req, issue_flags);
diff --git a/io_uring/register.c b/io_uring/register.c
index 3d3822ff3fd9e..12318c276068e 100644
--- a/io_uring/register.c
+++ b/io_uring/register.c
@@ -193,7 +193,8 @@ static int io_register_enable_rings(struct io_ring_ctx *ctx)
 	if (ctx->restrictions.registered)
 		ctx->restricted = 1;
 
-	ctx->flags &= ~IORING_SETUP_R_DISABLED;
+	/* Keep submitter_task store before clearing IORING_SETUP_R_DISABLED */
+	smp_store_release(&ctx->flags, ctx->flags & ~IORING_SETUP_R_DISABLED);
 	if (ctx->sq_data && wq_has_sleeper(&ctx->sq_data->wait))
 		wake_up(&ctx->sq_data->wait);
 	return 0;
-- 
2.51.0[PATCH 6.19 040/781] io_uring: use release-acquire ordering for IORING_SETUP_R_DISABLEDGreg Kroah-Hartman <gregkh@linuxfoundation.org> undefinedstable@vger.kernel.org undefined undefined undefined undefined undefined undefined undefined¥M†›A