static uint64_t block_save_pending(QEMUFile *f, void *opaque, uint64_t max_size) { /* Estimate pending number of bytes to send */ uint64_t pending; qemu_mutex_lock_iothread(); blk_mig_lock(); pending = get_remaining_dirty() + block_mig_state.submitted * BLOCK_SIZE + block_mig_state.read_done * BLOCK_SIZE; /* Report at least one block pending during bulk phase */ if (pending == 0 && !block_mig_state.bulk_completed) { pending = BLOCK_SIZE; } blk_mig_unlock(); qemu_mutex_unlock_iothread(); DPRINTF("Enter save live pending %" PRIu64 "\n", pending); return pending; }