[dm-devel] [PATCH 4/4] hwtable: set 'none' as default checker for NVMe

[Hannes Reinecke]

We shouldn't be using the directio checker for NVMe, as this might
cause spurious path failures under high load.
As the 'state' attribute provides reliable information about the link
status it's sufficient to just check this and don't call any
path checkers.

Signed-off-by: Hannes Reinecke <hare at suse.com>
---
 libmultipath/hwtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 9e14ec1..9ac09ff 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -1113,7 +1113,7 @@ static struct hwentry default_hw[] = {
 		.vendor        = "NVME",
 		.product       = ".*",
 		.uid_attribute = "ID_WWN",
-		.checker_name  = DIRECTIO,
+		.checker_name  = NONE,
 		.retain_hwhandler = RETAIN_HWHANDLER_OFF,
 	},
 	/*
-- 
1.8.5.6