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[dm-devel] [PATCH] Allow zero paths for multipath priority groups



From: Hannes Reinecke <hare suse de>
Subject: Allow zero paths for multipath priority groups

For correct handling of the all-paths-down scenario we have to
allow zero paths as a valid argument for priority groups.

Signed-off-by: Hannes Reinecke <hare suse de>
Signed-off-by: Nikanth Karthikesan <hare suse de>

---
 drivers/md/dm-mpath.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6-dm/drivers/md/dm-mpath.c
===================================================================
--- linux-2.6-dm.orig/drivers/md/dm-mpath.c
+++ linux-2.6-dm/drivers/md/dm-mpath.c
@@ -787,8 +787,8 @@ static int multipath_ctr(struct dm_targe
 {
 	/* target parameters */
 	static struct param _params[] = {
-		{1, 1024, "invalid number of priority groups"},
-		{1, 1024, "invalid initial priority group number"},
+		{0, 1024, "invalid number of priority groups"},
+		{0, 1024, "invalid initial priority group number"},
 	};
 
 	int r;


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