From: Mike Snitzer <snitzer(a)redhat.com>
nvme: multipath: Change default of kernel NVMe multipath to be disabled
BZ: 1948690
Upstream Status: RHEL-only
Signed-off-by: Mike Snitzer <snitzer(a)redhat.com>
rhel-8.git commit 8be4b84f8e35dc6e5453b72fe5e60acef795a299
Author: Ewan Milne <emilne(a)redhat.com>
Date: Fri Mar 22 17:33:52 2019 -0400
[nvme] nvme: multipath: Change default of kernel NVMe multipath to be disabled
Message-id: <20190322173354.8197-20-emilne(a)redhat.com>
Patchwork-id: 247393
O-Subject: [RHEL8.1 PATCH 19/21] nvme: multipath: Change default of kernel NVMe
multipath to be disabled
Bugzilla: 1690940
RH-Acked-by: Tony Camuso <tcamuso(a)redhat.com>
RH-Acked-by: Mike Snitzer <snitzer(a)redhat.com>
Now that CONFIG_NVME_MULTIPATH is enabled, make the default behavior
of the kernel to be "disabled" for compatibility with earlier RHEL8.
RHEL-only
Signed-off-by: Ewan D. Milne <emilne(a)redhat.com>
Signed-off-by: Herton R. Krzesinski <herton(a)redhat.com>
diff a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -8,7 +8,11 @@
#include <trace/events/block.h>
#include "nvme.h"
+#ifdef CONFIG_RHEL_DIFFERENCES
+static bool multipath = false;
+#else
static bool multipath = true;
+#endif
module_param(multipath, bool, 0444);
MODULE_PARM_DESC(multipath,
"turn on native support for multiple controllers per subsystem");
--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1024