From: Heinz Mauelshagen <heinzm@redhat.com>
Subject: dm cache policy: fix default DMEMIT in policy_emit_config_values

Add missing leading space to DMEMIT for case when the policy doesn't
provide emit_config_values().

[FIXME: I don't think we need this.. in fact it appears to introduce
 double spaces if policy doesn't define emit_config_values]

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
---
 drivers/md/dm-cache-policy-internal.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/drivers/md/dm-cache-policy-internal.h
===================================================================
--- linux.orig/drivers/md/dm-cache-policy-internal.h
+++ linux/drivers/md/dm-cache-policy-internal.h
@@ -87,7 +87,7 @@ static inline int policy_emit_config_val
 	if (p->emit_config_values)
 		return p->emit_config_values(p, result, maxlen);
 
-	DMEMIT("0");
+	DMEMIT(" 0");
 	return 0;
 }