diff --git a/mm/mremap.c b/mm/mremap.c
index 24827e13e617..0d06d7f37f19 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -1339,6 +1339,20 @@ static int copy_vma_and_data(struct vma_remap_struct *vrm,
 		pmc_revert.need_rmap_locks = true;
 		move_page_tables(&pmc_revert);
 
+		/*
+		 * When copy_vma_and_data() returns, the new VMA will be
+		 * unmapped rather than the old one.
+		 *
+		 * When an accountable move is being performed, this unmapping
+		 * will not uncharge any expansion, so do that now.
+		 *
+		 * A move is accountable if the VMA is accountable and
+		 * MREMAP_DONTUNMAP is not specified, so only do so if the
+		 * latter is true.
+		 */
+		if (!(vrm->flags & MREMAP_DONTUNMAP))
+			vrm_uncharge(vrm);
+
 		vrm->vma = new_vma;
 		vrm->old_len = vrm->new_len;
 		vrm->addr = vrm->new_addr;