modify: using local function to get the static variable value

hmp.c

@@ -2601,7 +2601,7 @@ void hmp_cuju_adjust_epoch(Monitor *mon, const QDict *qdict)
 
 void hmp_cuju_ft_started(Monitor *mon, const QDict *qdict) 
 {
-    monitor_printf(mon, "ft_started: %d\n", ft_started);
+    monitor_printf(mon, "ft_started: %d\n", show_ft_started());
 
     return;
 }

include/migration/cuju-kvm-share-mem.h

@@ -25,8 +25,6 @@
 #define SHARED_DIRTY_SIZE   10000
 #define SHARED_DIRTY_WATERMARK  9600
 
-extern int ft_started;
-
 bool cuju_supported(void);
 
 void kvmft_pre_init(void);
@@ -71,5 +69,6 @@ void kvm_shmem_load_ram(void *buf, int size);
 void* kvm_shmem_map_pfn(unsigned long pfn, unsigned long size);
 void kvm_shmem_unmap_pfn(void *ptr, unsigned long size);
 
+int show_ft_started (void);
 
 #endif

migration/cuju-kvm-share-mem.c

@@ -123,7 +123,7 @@ struct dirty_page_tracking_logs dirty_page_tracking_logs;
 static void*** page_array;
 static int bitmap_count;
 
-int ft_started = 0;
+static int ft_started = 0;
 
 static unsigned int epoch_time_in_us = EPOCH_TIME_IN_MS * 1000;
 
@@ -1474,3 +1474,7 @@ void kvmft_update_epoch_flush_time_linear(double time_s)
     }
 }
 
+int show_ft_started (void) 
+{
+	return ft_started;
+}