From 2a17610899f6dc5d5e5acf5f0a4b427f2cdfeea8 Mon Sep 17 00:00:00 2001
From: David Teigland <teigland@redhat.com>
Date: Wed, 6 Apr 2016 15:57:09 -0500
Subject: [PATCH] lvmetad: disable if command uses lvm1

Alternatively, a command could return an error saying
that lvm1 and lvmetad are not compatible.
---
 tools/lvmcmdline.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/lvmcmdline.c b/tools/lvmcmdline.c
index 404c835d3..dd89a7bd6 100644
--- a/tools/lvmcmdline.c
+++ b/tools/lvmcmdline.c
@@ -22,6 +22,7 @@
 
 #include "stub.h"
 #include "last-path-component.h"
+#include "format1.h"
 
 #include <signal.h>
 #include <sys/stat.h>
@@ -1601,6 +1602,13 @@ int lvm_run_command(struct cmd_context *cmd, int argc, char **argv)
 		goto out;
 	}
 
+	if (!strcmp(cmd->fmt->name, FMT_LVM1_NAME) && lvmetad_used()) {
+		log_warn("WARNING: Disabling lvmetad cache which does not support obsolete metadata.");
+		lvmetad_set_disabled(cmd, "LVM1");
+		log_warn("WARNING: Not using lvmetad because lvm1 format is used.");
+		lvmetad_set_active(cmd, 0);
+	}
+
 	if (cmd->metadata_read_only &&
 	    !(cmd->command->flags & PERMITTED_READ_ONLY)) {
 		log_error("%s: Command not permitted while global/metadata_read_only "