Re: [Qemu-devel] [PATCH V2] migration/colo.c: Fix compilation issue when disable replication

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Zhang Chen (zhangckid@gmail.com) wrote:
> This compilation issue will occur when user use --disable-replication
> to config Qemu.
> 
> Reported-by: Thomas Huth <thuth@redhat.com>
> Signed-off-by: Zhang Chen <zhangckid@gmail.com>

Queued.

> ---
>  migration/colo.c | 28 +++++++++++++++++++++++++++-
>  1 file changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/migration/colo.c b/migration/colo.c
> index 956ac236b7..fcff04c78c 100644
> --- a/migration/colo.c
> +++ b/migration/colo.c
> @@ -59,6 +59,8 @@ static bool colo_runstate_is_stopped(void)
>  
>  static void secondary_vm_do_failover(void)
>  {
> +/* COLO needs enable block-replication */
> +#ifdef CONFIG_REPLICATION
>      int old_state;
>      MigrationIncomingState *mis = migration_incoming_get_current();
>      Error *local_err = NULL;
> @@ -121,10 +123,14 @@ static void secondary_vm_do_failover(void)
>      if (mis->migration_incoming_co) {
>          qemu_coroutine_enter(mis->migration_incoming_co);
>      }
> +#else
> +    abort();
> +#endif
>  }
>  
>  static void primary_vm_do_failover(void)
>  {
> +#ifdef CONFIG_REPLICATION
>      MigrationState *s = migrate_get_current();
>      int old_state;
>      Error *local_err = NULL;
> @@ -165,6 +171,9 @@ static void primary_vm_do_failover(void)
>  
>      /* Notify COLO thread that failover work is finished */
>      qemu_sem_post(&s->colo_exit_sem);
> +#else
> +    abort();
> +#endif
>  }
>  
>  COLOMode get_colo_mode(void)
> @@ -415,11 +424,16 @@ static int colo_do_checkpoint_transaction(MigrationState *s,
>      /* Disable block migration */
>      migrate_set_block_enabled(false, &local_err);
>      qemu_mutex_lock_iothread();
> +
> +#ifdef CONFIG_REPLICATION
>      replication_do_checkpoint_all(&local_err);
>      if (local_err) {
>          qemu_mutex_unlock_iothread();
>          goto out;
>      }
> +#else
> +        abort();
> +#endif
>  
>      colo_send_message(s->to_dst_file, COLO_MESSAGE_VMSTATE_SEND, &local_err);
>      if (local_err) {
> @@ -523,11 +537,15 @@ static void colo_process_checkpoint(MigrationState *s)
>      object_unref(OBJECT(bioc));
>  
>      qemu_mutex_lock_iothread();
> +#ifdef CONFIG_REPLICATION
>      replication_start_all(REPLICATION_MODE_PRIMARY, &local_err);
>      if (local_err) {
>          qemu_mutex_unlock_iothread();
>          goto out;
>      }
> +#else
> +        abort();
> +#endif
>  
>      vm_start();
>      qemu_mutex_unlock_iothread();
> @@ -690,11 +708,15 @@ void *colo_process_incoming_thread(void *opaque)
>      object_unref(OBJECT(bioc));
>  
>      qemu_mutex_lock_iothread();
> +#ifdef CONFIG_REPLICATION
>      replication_start_all(REPLICATION_MODE_SECONDARY, &local_err);
>      if (local_err) {
>          qemu_mutex_unlock_iothread();
>          goto out;
>      }
> +#else
> +        abort();
> +#endif
>      vm_start();
>      trace_colo_vm_state_change("stop", "run");
>      qemu_mutex_unlock_iothread();
> @@ -785,18 +807,22 @@ void *colo_process_incoming_thread(void *opaque)
>              goto out;
>          }
>  
> +#ifdef CONFIG_REPLICATION
>          replication_get_error_all(&local_err);
>          if (local_err) {
>              qemu_mutex_unlock_iothread();
>              goto out;
>          }
> +
>          /* discard colo disk buffer */
>          replication_do_checkpoint_all(&local_err);
>          if (local_err) {
>              qemu_mutex_unlock_iothread();
>              goto out;
>          }
> -
> +#else
> +        abort();
> +#endif
>          /* Notify all filters of all NIC to do checkpoint */
>          colo_notify_filters_event(COLO_EVENT_CHECKPOINT, &local_err);
>  
> -- 
> 2.17.1
> 
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK