[PATCH 10/19] libmultipath: restore PG prio in update_multipath_strings

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update_multipath_strings() destroys and recreates the
pathgroup vector. This wipes information previously
stored. Restore the path group priorities.

Fixes: efc7407bed65 "libmultipath: don't update path groups when
 printing"
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
 libmultipath/structs_vec.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
index 03e2b978..db5d19da 100644
--- a/libmultipath/structs_vec.c
+++ b/libmultipath/structs_vec.c
@@ -18,6 +18,7 @@
 #include "configure.h"
 #include "libdevmapper.h"
 #include "io_err_stat.h"
+#include "switchgroup.h"
 
 /*
  * creates or updates mpp->paths reading mpp->pg
@@ -261,6 +262,9 @@ void sync_paths(struct multipath *mpp, vector pathvec)
 int
 update_multipath_strings(struct multipath *mpp, vector pathvec, int is_daemon)
 {
+	struct pathgroup *pgp;
+	int i;
+
 	if (!mpp)
 		return 1;
 
@@ -278,6 +282,10 @@ update_multipath_strings(struct multipath *mpp, vector pathvec, int is_daemon)
 	if (update_multipath_status(mpp))
 		return 1;
 
+	vector_foreach_slot(mpp->pg, pgp, i)
+		if (pgp->paths)
+			path_group_prio_update(pgp);
+
 	return 0;
 }
 
-- 
2.19.2

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