pvscan: restore polling in autoactivation handler

This commit fixes regression in auto-activation code introduced
in commit: c26d81d6e6.

- resolves rhbz1295562

WHATS_NEW

@@ -1,5 +1,6 @@
 Version 2.02.140 -
 ===================================
+  Restore background polling processing during auto-activation (2.02.119).
   Use brackets to signify LVs which are not visible when reporting lv_parent.
   Fix invalid memory read when reporting cache LV policy_name (2.02.126).
 

tools/pvscan.c

@@ -190,6 +190,15 @@ static int _auto_activation_handler(struct cmd_context *cmd,
 		goto out;
 	}
 
+	/*
+	 * After sucessfull activation we need to initialise polling
+	 * for all activated LVs in a VG. Possible enhancement would
+	 * be adding --poll y|n cmdline option for pvscan and call
+	 * init_background_polling routine in autoactivation handler.
+	 */
+	if (!(vgchange_background_polling(vg->cmd, vg)))
+		goto_out;
+
 	r = 1;
 
 out:

tools/tools.h

@@ -185,4 +185,6 @@ int mirror_remove_missing(struct cmd_context *cmd,
 int vgchange_activate(struct cmd_context *cmd, struct volume_group *vg,
 		       activation_change_t activate);
 
+int vgchange_background_polling(struct cmd_context *cmd, struct volume_group *vg);
+
 #endif

tools/vgchange.c

@@ -174,7 +174,7 @@ static int _vgchange_monitoring(struct cmd_context *cmd, struct volume_group *vg
 	return r;
 }
 
-static int _vgchange_background_polling(struct cmd_context *cmd, struct volume_group *vg)
+int vgchange_background_polling(struct cmd_context *cmd, struct volume_group *vg)
 {
 	int polled;
 
@@ -999,7 +999,7 @@ static int vgchange_single(struct cmd_context *cmd, const char *vg_name,
 
 	if (!arg_count(cmd, refresh_ARG) &&
 	    background_polling())
-		if (!_vgchange_background_polling(cmd, vg))
+		if (!vgchange_background_polling(cmd, vg))
 			return_ECMD_FAILED;
 
 	if (arg_is_set(cmd, lockstart_ARG)) {