[dm-devel] [PATCH] multipath-tools: Manual failback fix when priority changes

[Moger, Babu]

Current code switches the path-group when there is a change in priority. However,
this is not the right thing to do when failback is set to manual. This patch fixes
this problem. Call update_path_groups only if failback is immediate.

Signed-off-by: Babu Moger <babu.moger at netapp.com>

---
--- multipath-tools/multipathd/main.c.orig	2011-05-26 08:06:08.000000000 -0500
+++ multipath-tools/multipathd/main.c	2011-05-26 08:21:39.000000000 -0500
@@ -1189,7 +1189,8 @@ check_path (struct vectors * vecs, struc
 	condlog(4, "path prio refresh");
 
 	if (update_prio(pp, new_path_up) &&
-	    pp->mpp->pgpolicyfn == (pgpolicyfn *)group_by_prio)
+	    (pp->mpp->pgpolicyfn == (pgpolicyfn *)group_by_prio) &&
+	     pp->mpp->pgfailback == -FAILBACK_IMMEDIATE)
 		update_path_groups(pp->mpp, vecs, !new_path_up);
 	else if (need_switch_pathgroup(pp->mpp, 0)) {
 		if (pp->mpp->pgfailback > 0 &&