ram migration: Properly reset statistics

As we may do more than one migration (cancellation, live backup), reset
bytes_transferred on stage 1.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

diff --git a/vl.c b/vl.c
index e9b75c9..78a4ec4 100644 (file)
--- a/vl.c
+++ b/vl.c
@@ -2897,7 +2897,7 @@ static int ram_save_block(QEMUFile *f)
     return found;
 }
 
-static uint64_t bytes_transferred = 0;
+static uint64_t bytes_transferred;
 
 static ram_addr_t ram_save_remaining(void)
 {
@@ -2945,6 +2945,8 @@ static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
     }
 
     if (stage == 1) {
+        bytes_transferred = 0;
+
         /* Make sure all dirty bits are set */
         for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
             if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))