[multipathd] add "sg $map $pgindex" CLI command

To trigger a PG switch.

Somewhat asked by Lars.

diff --git a/multipathd/main.c b/multipathd/main.c
index 753c922..b43f863 100644 (file)
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -223,6 +223,31 @@ out:
 }
 
 static void
+switch_to_pathgroup (char * str)
+{
+       char * mapname;
+       char * buff;
+       char * p;
+
+       p = str;
+       p += get_word(p, &mapname);
+
+       if (!mapname)
+               return;
+
+       p += get_word(p, &buff);
+
+       if (!buff)
+               goto out;
+
+       dm_switchgroup(mapname, atoi(buff));
+       FREE(buff);
+out:
+       FREE(mapname);
+       return;
+}
+       
+static void
 switch_pathgroup (struct multipath * mpp)
 {
        struct pathgroup * pgp;
@@ -705,6 +730,9 @@ uxsock_trigger (char * str, void * trigger_data)
        else if (*str == 'a' && *(str + 1) == 'm')
                uev_add_map(str + 3, allpaths);
 
+       else if (*str == 's' && *(str + 1) == 'g')
+               switch_to_pathgroup(str + 3);
+
        if (!reply)
                asprintf(&reply, "ok\n");