Patch for setting pgfailback coded default for EMC CLARiiON and o thers

diff --git a/libmultipath/config.c b/libmultipath/config.c
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -228,7 +228,7 @@ out:
 int
 store_hwe_ext (vector hwtable, char * vendor, char * product, int pgp,
           char * getuid, char * getprio, char * hwhandler,
-          char * features, char * checker)
+          char * features, char * checker, int pgfailback)
 {
        struct hwentry * hwe;
 
@@ -284,6 +284,8 @@ store_hwe_ext (vector hwtable, char * ve
        else
                hwe->checker_index = get_checker_id(DEFAULT_CHECKER);
 
+       hwe->pgfailback = pgfailback;
+
        if (!vector_alloc_slot(hwtable))
                goto out;
 
diff --git a/libmultipath/config.h b/libmultipath/config.h
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -86,8 +86,7 @@ int store_hwe (vector hwtable, char * ve
                char * getuid);
 int store_hwe_ext (vector hwtable, char * vendor, char * product, int pgp,
                char * getuid, char * getprio, char * hwhandler,
-               char * features, char * checker);
-
+               char * features, char * checker, int pgfailback);
 int load_config (char * file);
 struct config * alloc_config (void);
 void free_config (struct config * conf);
diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
--- a/libmultipath/hwtable.c
+++ b/libmultipath/hwtable.c
@@ -37,13 +37,13 @@ setup_default_hwtable (vector hw)
 
        r += store_hwe_ext(hw, "DGC", "*", GROUP_BY_PRIO, DEFAULT_GETUID,
                   "/sbin/mpath_prio_emc /dev/%n", "1 emc",
-                  "1 queue_if_no_path", "emc_clariion");
+                  "1 queue_if_no_path", "emc_clariion",
FAILBACK_IMMEDIATE);
        r += store_hwe_ext(hw, "IBM", "3542", GROUP_BY_SERIAL,
DEFAULT_GETUID,
-                  NULL, "0", "0", "tur");
+                  NULL, "0", "0", "tur", FAILBACK_UNDEF);
        r += store_hwe_ext(hw, "SGI", "TP9400", MULTIBUS, DEFAULT_GETUID,
-                  NULL, "0", "0", "tur");
+                  NULL, "0", "0", "tur", FAILBACK_UNDEF);
        r += store_hwe_ext(hw, "SGI", "TP9500", FAILOVER, DEFAULT_GETUID,
-                  NULL, "0", "0", "tur");
+                  NULL, "0", "0", "tur", FAILBACK_UNDEF);