migration: Remove unused res_compatible

Nothing assigns to it after previous commit.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>

hw/s390x/s390-stattrib.c

@@ -184,7 +184,6 @@ static int cmma_save_setup(QEMUFile *f, void *opaque)
 
 static void cmma_state_pending(void *opaque,
                                uint64_t *res_precopy_only,
-                               uint64_t *res_compatible,
                                uint64_t *res_postcopy_only)
 {
     S390StAttribState *sas = S390_STATTRIB(opaque);

hw/vfio/migration.c

@@ -458,7 +458,6 @@ static void vfio_save_cleanup(void *opaque)
 
 static void vfio_state_pending(void *opaque,
                                uint64_t *res_precopy_only,
-                               uint64_t *res_compatible,
                                uint64_t *res_postcopy_only)
 {
     VFIODevice *vbasedev = opaque;
@@ -473,7 +472,7 @@ static void vfio_state_pending(void *opaque,
     *res_precopy_only += migration->pending_bytes;
 
     trace_vfio_state_pending(vbasedev->name, *res_precopy_only,
-                            *res_postcopy_only, *res_compatible);
+                            *res_postcopy_only);
 }
 
 static int vfio_save_iterate(QEMUFile *f, void *opaque)

hw/vfio/trace-events

@@ -157,7 +157,7 @@ vfio_save_cleanup(const char *name) " (%s)"
 vfio_save_buffer(const char *name, uint64_t data_offset, uint64_t data_size, uint64_t pending) " (%s) Offset 0x%"PRIx64" size 0x%"PRIx64" pending 0x%"PRIx64
 vfio_update_pending(const char *name, uint64_t pending) " (%s) pending 0x%"PRIx64
 vfio_save_device_config_state(const char *name) " (%s)"
-vfio_state_pending(const char *name, uint64_t precopy, uint64_t postcopy, uint64_t compatible) " (%s) precopy 0x%"PRIx64" postcopy 0x%"PRIx64" compatible 0x%"PRIx64
+vfio_state_pending(const char *name, uint64_t precopy, uint64_t postcopy) " (%s) precopy 0x%"PRIx64" postcopy 0x%"PRIx64
 vfio_save_iterate(const char *name, int data_size) " (%s) data_size %d"
 vfio_save_complete_precopy(const char *name) " (%s)"
 vfio_load_device_config_state(const char *name) " (%s)"

include/migration/register.h

@@ -49,22 +49,19 @@ typedef struct SaveVMHandlers {
     /* Note for save_live_pending:
      * - res_precopy_only is for data which must be migrated in precopy phase
      *     or in stopped state, in other words - before target vm start
-     * - res_compatible is for data which may be migrated in any phase
      * - res_postcopy_only is for data which must be migrated in postcopy phase
      *     or in stopped state, in other words - after source vm stop
      *
-     * Sum of res_postcopy_only, res_compatible and res_postcopy_only is the
-     * whole amount of pending data.
+     * Sum of res_postcopy_only and res_postcopy_only is the whole
+     * amount of pending data.
      */
     /* This estimates the remaining data to transfer */
     void (*state_pending_estimate)(void *opaque,
                                    uint64_t *res_precopy_only,
-                                   uint64_t *res_compatible,
                                    uint64_t *res_postcopy_only);
     /* This calculate the exact remaining data to transfer */
     void (*state_pending_exact)(void *opaque,
                                 uint64_t *res_precopy_only,
-                                uint64_t *res_compatible,
                                 uint64_t *res_postcopy_only);
     LoadStateHandler *load_state;
     int (*load_setup)(QEMUFile *f, void *opaque);

migration/block-dirty-bitmap.c

@@ -764,7 +764,6 @@ static int dirty_bitmap_save_complete(QEMUFile *f, void *opaque)
 
 static void dirty_bitmap_state_pending(void *opaque,
                                        uint64_t *res_precopy_only,
-                                       uint64_t *res_compatible,
                                        uint64_t *res_postcopy_only)
 {
     DBMSaveState *s = &((DBMState *)opaque)->save;

migration/block.c

@@ -855,7 +855,6 @@ static int block_save_complete(QEMUFile *f, void *opaque)
 
 static void block_state_pending(void *opaque,
                                 uint64_t *res_precopy_only,
-                                uint64_t *res_compatible,
                                 uint64_t *res_postcopy_only)
 {
     /* Estimate pending number of bytes to send */

migration/migration.c

@@ -3863,20 +3863,18 @@ typedef enum {
  */
 static MigIterateState migration_iteration_run(MigrationState *s)
 {
-    uint64_t pend_pre, pend_compat, pend_post;
+    uint64_t pend_pre, pend_post;
     bool in_postcopy = s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE;
 
-    qemu_savevm_state_pending_estimate(&pend_pre, &pend_compat, &pend_post);
-    uint64_t pending_size = pend_pre + pend_compat + pend_post;
+    qemu_savevm_state_pending_estimate(&pend_pre, &pend_post);
+    uint64_t pending_size = pend_pre + pend_post;
 
-    trace_migrate_pending_estimate(pending_size,
-                                   pend_pre, pend_compat, pend_post);
+    trace_migrate_pending_estimate(pending_size, pend_pre, pend_post);
 
-    if (pend_pre + pend_compat <= s->threshold_size) {
-        qemu_savevm_state_pending_exact(&pend_pre, &pend_compat, &pend_post);
-        pending_size = pend_pre + pend_compat + pend_post;
-        trace_migrate_pending_exact(pending_size,
-                                    pend_pre, pend_compat, pend_post);
+    if (pend_pre <= s->threshold_size) {
+        qemu_savevm_state_pending_exact(&pend_pre, &pend_post);
+        pending_size = pend_pre + pend_post;
+        trace_migrate_pending_exact(pending_size, pend_pre, pend_post);
     }
 
     if (!pending_size || pending_size < s->threshold_size) {

migration/ram.c

@@ -3491,7 +3491,6 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
 
 static void ram_state_pending_estimate(void *opaque,
                                        uint64_t *res_precopy_only,
-                                       uint64_t *res_compatible,
                                        uint64_t *res_postcopy_only)
 {
     RAMState **temp = opaque;
@@ -3509,7 +3508,6 @@ static void ram_state_pending_estimate(void *opaque,
 
 static void ram_state_pending_exact(void *opaque,
                                     uint64_t *res_precopy_only,
-                                    uint64_t *res_compatible,
                                     uint64_t *res_postcopy_only)
 {
     RAMState **temp = opaque;

migration/savevm.c

@@ -1542,13 +1542,11 @@ flush:
  * for units that can't do postcopy.
  */
 void qemu_savevm_state_pending_estimate(uint64_t *res_precopy_only,
-                                        uint64_t *res_compatible,
                                         uint64_t *res_postcopy_only)
 {
     SaveStateEntry *se;
 
     *res_precopy_only = 0;
-    *res_compatible = 0;
     *res_postcopy_only = 0;
 
     QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
@@ -1561,19 +1559,17 @@ void qemu_savevm_state_pending_estimate(uint64_t *res_precopy_only,
             }
         }
         se->ops->state_pending_estimate(se->opaque,
-                                        res_precopy_only, res_compatible,
+                                        res_precopy_only,
                                         res_postcopy_only);
     }
 }
 
 void qemu_savevm_state_pending_exact(uint64_t *res_precopy_only,
-                                     uint64_t *res_compatible,
                                      uint64_t *res_postcopy_only)
 {
     SaveStateEntry *se;
 
     *res_precopy_only = 0;
-    *res_compatible = 0;
     *res_postcopy_only = 0;
 
     QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
@@ -1586,7 +1582,7 @@ void qemu_savevm_state_pending_exact(uint64_t *res_precopy_only,
             }
         }
         se->ops->state_pending_exact(se->opaque,
-                                     res_precopy_only, res_compatible,
+                                     res_precopy_only,
                                      res_postcopy_only);
     }
 }

migration/savevm.h

@@ -41,10 +41,8 @@ void qemu_savevm_state_complete_postcopy(QEMUFile *f);
 int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
                                        bool inactivate_disks);
 void qemu_savevm_state_pending_exact(uint64_t *res_precopy_only,
-                                     uint64_t *res_compatible,
                                      uint64_t *res_postcopy_only);
 void qemu_savevm_state_pending_estimate(uint64_t *res_precopy_only,
-                                        uint64_t *res_compatible,
                                         uint64_t *res_postcopy_only);
 void qemu_savevm_send_ping(QEMUFile *f, uint32_t value);
 void qemu_savevm_send_open_return_path(QEMUFile *f);

migration/trace-events

@@ -150,8 +150,8 @@ migrate_fd_cleanup(void) ""
 migrate_fd_error(const char *error_desc) "error=%s"
 migrate_fd_cancel(void) ""
 migrate_handle_rp_req_pages(const char *rbname, size_t start, size_t len) "in %s at 0x%zx len 0x%zx"
-migrate_pending_exact(uint64_t size, uint64_t pre, uint64_t compat, uint64_t post) "exact pending size %" PRIu64 " (pre = %" PRIu64 " compat=%" PRIu64 " post=%" PRIu64 ")"
-migrate_pending_estimate(uint64_t size, uint64_t pre, uint64_t compat, uint64_t post) "estimate pending size %" PRIu64 " (pre = %" PRIu64 " compat=%" PRIu64 " post=%" PRIu64 ")"
+migrate_pending_exact(uint64_t size, uint64_t pre, uint64_t post) "exact pending size %" PRIu64 " (pre = %" PRIu64 " post=%" PRIu64 ")"
+migrate_pending_estimate(uint64_t size, uint64_t pre, uint64_t post) "estimate pending size %" PRIu64 " (pre = %" PRIu64 " post=%" PRIu64 ")"
 migrate_send_rp_message(int msg_type, uint16_t len) "%d: len %d"
 migrate_send_rp_recv_bitmap(char *name, int64_t size) "block '%s' size 0x%"PRIi64
 migration_completion_file_err(void) ""