migration: Add dirty_pages_rate to query migrate output

It indicates how many pages were dirtied during the last second.

Signed-off-by: Juan Quintela <quintela@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/migration.h b/migration.h
index 552200c348..66d7f68bb8 100644
--- a/migration.h
+++ b/migration.h
@@ -42,6 +42,7 @@ struct MigrationState
     int64_t total_time;
     int64_t downtime;
     int64_t expected_downtime;
+    int64_t dirty_pages_rate;
     bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
     int64_t xbzrle_cache_size;
 };