[dm-devel] [PATCH 4/4] multipath-tools: replace DIRECTIO with DEFAULT_CHECKER in hwtable

[Xose Vazquez Perez]

DIRECTIO is unreliable under high load.

Cc: Shyam Sundar <g.shyamsundar at yahoo.co.in>
Cc: Edward Goggin, EMC <egoggin at emc.com>
Cc: Matthias Rudolph <matthias.rudolph at hds.com>
Cc: Brian King, IBM <brking at linux.vnet.ibm.com>
Cc: Yacine Kheddache <yacine at alyseo.com>
Cc: Srinivasan Ramani <srinivas.ramani at oracle.com>
Cc: Bart Brooks, Pivot3 <bartb at pivot3.com>
Cc: Martin George <marting at netapp.com>
Cc: Sean Stewart <sean.stewart at netapp.com>
Cc: Benjamin Marzinski <bmarzins at redhat.com>
Cc: Hannes Reinecke <hare at suse.de>
Cc: Christophe Varoqui <christophe.varoqui at opensvc.com>
Cc: device-mapper development <dm-devel at redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez at gmail.com>
---
 libmultipath/hwtable.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
index 6e73e67..38487c1 100644
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -95,7 +95,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = 12,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -245,7 +245,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -324,7 +324,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -388,7 +388,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -622,7 +622,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -638,7 +638,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -702,7 +702,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = -FAILBACK_IMMEDIATE,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = (300 / DEFAULT_CHECKINT),
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -816,7 +816,7 @@ static struct hwentry default_hw[] = {
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
 		.minio         = 128,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = PRIO_ONTAP,
 		.prio_args     = NULL,
 	},
@@ -836,7 +836,7 @@ static struct hwentry default_hw[] = {
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = 30,
 		.minio         = 128,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -871,7 +871,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
@@ -949,7 +949,7 @@ static struct hwentry default_hw[] = {
 		.pgfailback    = FAILBACK_UNDEF,
 		.rr_weight     = RR_WEIGHT_NONE,
 		.no_path_retry = NO_PATH_RETRY_UNDEF,
-		.checker_name  = DIRECTIO,
+		.checker_name  = DEFAULT_CHECKER,
 		.prio_name     = DEFAULT_PRIO,
 		.prio_args     = NULL,
 	},
-- 
2.5.5