1 files changed, 0 insertions, 46 deletions

diff --git a/migration/block-active.c b/migration/block-active.c
index d477cf8182..40e986aade 100644
--- a/migration/block-active.c
+++ b/migration/block-active.c
@@ -12,51 +12,12 @@
 #include "qemu/error-report.h"
 #include "trace.h"
 
-/*
- * Migration-only cache to remember the block layer activation status.
- * Protected by BQL.
- *
- * We need this because..
- *
- * - Migration can fail after block devices are invalidated (during
- *   switchover phase).  When that happens, we need to be able to recover
- *   the block drive status by re-activating them.
- *
- * - Currently bdrv_inactivate_all() is not safe to be invoked on top of
- *   invalidated drives (even if bdrv_activate_all() is actually safe to be
- *   called any time!).  It means remembering this could help migration to
- *   make sure it won't invalidate twice in a row, crashing QEMU.  It can
- *   happen when we migrate a PAUSED VM from host1 to host2, then migrate
- *   again to host3 without starting it.  TODO: a cleaner solution is to
- *   allow safe invoke of bdrv_inactivate_all() at anytime, like
- *   bdrv_activate_all().
- *
- * For freshly started QEMU, the flag is initialized to TRUE reflecting the
- * scenario where QEMU owns block device ownerships.
- *
- * For incoming QEMU taking a migration stream, the flag is initialized to
- * FALSE reflecting that the incoming side doesn't own the block devices,
- * not until switchover happens.
- */
-static bool migration_block_active;
-
-/* Setup the disk activation status */
-void migration_block_active_setup(bool active)
-{
-    migration_block_active = active;
-}
-
 bool migration_block_activate(Error **errp)
 {
     ERRP_GUARD();
 
     assert(bql_locked());
 
-    if (migration_block_active) {
-        trace_migration_block_activation("active-skipped");
-        return true;
-    }
-
     trace_migration_block_activation("active");
 
     bdrv_activate_all(errp);
@@ -65,7 +26,6 @@ bool migration_block_activate(Error **errp)
         return false;
     }
 
-    migration_block_active = true;
     return true;
 }
 
@@ -75,11 +35,6 @@ bool migration_block_inactivate(void)
 
     assert(bql_locked());
 
-    if (!migration_block_active) {
-        trace_migration_block_activation("inactive-skipped");
-        return true;
-    }
-
     trace_migration_block_activation("inactive");
 
     ret = bdrv_inactivate_all();
@@ -89,6 +44,5 @@ bool migration_block_inactivate(void)
         return false;
     }
 
-    migration_block_active = false;
     return true;
 }