113 	u64 num_refs;  in btrfs_lookup_extent_info()  local
166 			num_refs = btrfs_extent_refs(leaf, ei);  in btrfs_lookup_extent_info()
181 		BUG_ON(num_refs == 0);  in btrfs_lookup_extent_info()
183 		num_refs = 0;  in btrfs_lookup_extent_info()
214 			BUG_ON(num_refs == 0);  in btrfs_lookup_extent_info()
216 		num_refs += head->ref_mod;  in btrfs_lookup_extent_info()
222 	WARN_ON(num_refs == 0);  in btrfs_lookup_extent_info()
224 		*refs = num_refs;  in btrfs_lookup_extent_info()
516 	u32 num_refs;  in insert_extent_data_ref()  local
543 			num_refs = btrfs_shared_data_ref_count(leaf, ref);  in insert_extent_data_ref()
544 			num_refs += refs_to_add;  in insert_extent_data_ref()
545 			btrfs_set_shared_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
573 			num_refs = btrfs_extent_data_ref_count(leaf, ref);  in insert_extent_data_ref()
574 			num_refs += refs_to_add;  in insert_extent_data_ref()
575 			btrfs_set_extent_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
594 	u32 num_refs = 0;  in remove_extent_data_ref()  local
603 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in remove_extent_data_ref()
607 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in remove_extent_data_ref()
616 	BUG_ON(num_refs < refs_to_drop);  in remove_extent_data_ref()
617 	num_refs -= refs_to_drop;  in remove_extent_data_ref()
619 	if (num_refs == 0) {  in remove_extent_data_ref()
623 			btrfs_set_extent_data_ref_count(leaf, ref1, num_refs);  in remove_extent_data_ref()
625 			btrfs_set_shared_data_ref_count(leaf, ref2, num_refs);  in remove_extent_data_ref()
638 	u32 num_refs = 0;  in extent_data_ref_count()  local
653 			num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
656 			num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
661 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
665 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
669 	return num_refs;  in extent_data_ref_count()