[PATCH v3 04/17] migration: Simplify migration_iteration_run()

[Avihai Horon <avihaih@nvidia.com>]

From: Juan Quintela <quintela@redhat.com>

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
---
 migration/migration.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/migration/migration.c b/migration/migration.c
index ffe868b86f..59cc3c309b 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3743,23 +3743,24 @@ static MigIterateState migration_iteration_run(MigrationState *s)
 
     trace_migrate_pending(pending_size, s->threshold_size, pend_pre, pend_post);
 
-    if (pending_size && pending_size >= s->threshold_size) {
-        /* Still a significant amount to transfer */
-        if (!in_postcopy && pend_pre <= s->threshold_size &&
-            qatomic_read(&s->start_postcopy)) {
-            if (postcopy_start(s)) {
-                error_report("%s: postcopy failed to start", __func__);
-            }
-            return MIG_ITERATE_SKIP;
-        }
-        /* Just another iteration step */
-        qemu_savevm_state_iterate(s->to_dst_file, in_postcopy);
-    } else {
+
+    if (pending_size < s->threshold_size) {
         trace_migration_thread_low_pending(pending_size);
         migration_completion(s);
         return MIG_ITERATE_BREAK;
     }
 
+    /* Still a significant amount to transfer */
+    if (!in_postcopy && pend_pre <= s->threshold_size &&
+        qatomic_read(&s->start_postcopy)) {
+        if (postcopy_start(s)) {
+            error_report("%s: postcopy failed to start", __func__);
+        }
+        return MIG_ITERATE_SKIP;
+    }
+
+    /* Just another iteration step */
+    qemu_savevm_state_iterate(s->to_dst_file, in_postcopy);
     return MIG_ITERATE_RESUME;
 }
 
-- 
2.21.3