Dividing integer expressions transferred_bytes and time_spent, and then 
converting
the integer quotient to type double. Any remainder, or fractional part of the
quotient, is ignored.  Fix this.

Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
 migration/migration.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/migration/migration.c b/migration/migration.c
index b3adbc6..6db75b8 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -646,7 +646,7 @@ static void *migration_thread(void *opaque)
         if (current_time >= initial_time + BUFFER_DELAY) {
             uint64_t transferred_bytes = qemu_ftell(s->file) - initial_bytes;
             uint64_t time_spent = current_time - initial_time;
-            double bandwidth = transferred_bytes / time_spent;
+            double bandwidth = (double)transferred_bytes / time_spent;
             max_size = bandwidth * migrate_max_downtime() / 1000000;
 
             s->mbps = time_spent ? (((double) transferred_bytes * 8.0) /
-- 
1.8.3.1


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