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-rw-r--r--migration/block.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/block.c b/migration/block.c
index 1941bc2..6741228 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -276,6 +276,8 @@ static int mig_save_device_bulk(QEMUFile *f, BlkMigDevState *bmds)
if (bmds->shared_base) {
qemu_mutex_lock_iothread();
aio_context_acquire(blk_get_aio_context(bb));
+ /* Skip unallocated sectors; intentionally treats failure as
+ * an allocated sector */
while (cur_sector < total_sectors &&
!bdrv_is_allocated(blk_bs(bb), cur_sector,
MAX_IS_ALLOCATED_SEARCH, &nr_sectors)) {