From 17948bcaa99a007cae04e556391918dd4c3ee6c9 Mon Sep 17 00:00:00 2001
From: Krishna Kanth Reddy <krish.reddy@samsung.com>
Date: Sat, 13 Aug 2022 05:29:10 +0530
Subject: [PATCH] bdev : xNVMe BDEV module performance fix

This change fixes the lower performance issue of the
xNVMe BDEV for libaio and io_uring backends. There is no
drop in the performance for the io_uring passthrough backend.

Signed-off-by: Krishna Kanth Reddy <krish.reddy@samsung.com>
Change-Id: I21de1b49a534cfc642d1873ef623271063da6af8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14015
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 module/bdev/xnvme/bdev_xnvme.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/module/bdev/xnvme/bdev_xnvme.c b/module/bdev/xnvme/bdev_xnvme.c
index 92347a388..3a8a3ca6f 100644
--- a/module/bdev/xnvme/bdev_xnvme.c
+++ b/module/bdev/xnvme/bdev_xnvme.c
@@ -285,6 +285,7 @@ create_xnvme_bdev(const char *name, const char *filename, const char *io_mechani
 		return NULL;
 	}
 
+	opts.direct = 1;
 	opts.async = io_mechanism;
 	if (!opts.async) {
 		goto error_return;