118 			     u64 offset, int metadata, u64 *refs, u64 *flags)  in btrfs_lookup_extent_info()  argument
209 			refcount_inc(&head->refs);  in btrfs_lookup_extent_info()
236 	if (refs)  in btrfs_lookup_extent_info()
237 		*refs = num_refs;  in btrfs_lookup_extent_info()
1003 	u64 refs;  in setup_inline_extent_backref()  local
1017 	refs = btrfs_extent_refs(leaf, ei);  in setup_inline_extent_backref()
1018 	refs += refs_to_add;  in setup_inline_extent_backref()
1019 	btrfs_set_extent_refs(leaf, ei, refs);  in setup_inline_extent_backref()
1096 	u64 refs;  in update_inline_extent_backref()  local
1099 	refs = btrfs_extent_refs(leaf, ei);  in update_inline_extent_backref()
1100 	WARN_ON(refs_to_mod < 0 && refs + refs_to_mod <= 0);  in update_inline_extent_backref()
1101 	refs += refs_to_mod;  in update_inline_extent_backref()
1102 	btrfs_set_extent_refs(leaf, ei, refs);  in update_inline_extent_backref()
1115 		refs = btrfs_extent_data_ref_count(leaf, dref);  in update_inline_extent_backref()
1118 		refs = btrfs_shared_data_ref_count(leaf, sref);  in update_inline_extent_backref()
1120 		refs = 1;  in update_inline_extent_backref()
1124 	BUG_ON(refs_to_mod < 0 && refs < -refs_to_mod);  in update_inline_extent_backref()
1125 	refs += refs_to_mod;  in update_inline_extent_backref()
1127 	if (refs > 0) {  in update_inline_extent_backref()
1129 			btrfs_set_extent_data_ref_count(leaf, dref, refs);  in update_inline_extent_backref()
1131 			btrfs_set_shared_data_ref_count(leaf, sref, refs);  in update_inline_extent_backref()
1453 	u64 refs;  in __btrfs_inc_extent_ref()  local
1475 	refs = btrfs_extent_refs(leaf, item);  in __btrfs_inc_extent_ref()
1476 	btrfs_set_extent_refs(leaf, item, refs + refs_to_add);  in __btrfs_inc_extent_ref()
2165 		refcount_inc(&head->refs);  in btrfs_run_delayed_refs()
2238 		refcount_inc(&head->refs);  in check_delayed_ref()
2942 	u64 refs;  in __btrfs_free_extent()  local
3106 	refs = btrfs_extent_refs(leaf, ei);  in __btrfs_free_extent()
3107 	if (refs < refs_to_drop) {  in __btrfs_free_extent()
3110 			  refs_to_drop, refs, bytenr);  in __btrfs_free_extent()
3114 	refs -= refs_to_drop;  in __btrfs_free_extent()
3116 	if (refs > 0) {  in __btrfs_free_extent()
3131 			btrfs_set_extent_refs(leaf, ei, refs);  in __btrfs_free_extent()
5074 	u64 refs[BTRFS_MAX_LEVEL];  member
5100 	u64 refs;  in reada_walk_down()  local
5138 					       wc->level - 1, 1, &refs,  in reada_walk_down()
5143 		BUG_ON(refs == 0);  in reada_walk_down()
5146 			if (refs == 1)  in reada_walk_down()
5200 	    ((wc->stage == DROP_REFERENCE && wc->refs[level] != 1) ||  in walk_down_proc()
5205 					       &wc->refs[level],  in walk_down_proc()
5210 		BUG_ON(wc->refs[level] == 0);  in walk_down_proc()
5214 		if (wc->refs[level] > 1)  in walk_down_proc()
5334 				       &wc->refs[level - 1],  in do_walk_down()
5339 	if (unlikely(wc->refs[level - 1] == 0)) {  in do_walk_down()
5347 		if (wc->refs[level - 1] > 1) {  in do_walk_down()
5408 	wc->refs[level - 1] = 0;  in do_walk_down()
5535 						       &wc->refs[level],  in walk_up_proc()
5542 			BUG_ON(wc->refs[level] == 0);  in walk_up_proc()
5543 			if (wc->refs[level] == 1) {  in walk_up_proc()
5552 	BUG_ON(wc->refs[level] > 1 && !path->locks[level]);  in walk_up_proc()
5554 	if (wc->refs[level] == 1) {  in walk_up_proc()
5593 			      wc->refs[level] == 1);  in walk_up_proc()
5595 	wc->refs[level] = 0;  in walk_up_proc()
5781 						level, 1, &wc->refs[level],  in btrfs_drop_snapshot()
5787 			BUG_ON(wc->refs[level] == 0);  in btrfs_drop_snapshot()
5794 			WARN_ON(wc->refs[level] != 1);  in btrfs_drop_snapshot()
5977 	atomic_inc(&parent->refs);  in btrfs_drop_subtree()
5987 	wc->refs[parent_level] = 1;  in btrfs_drop_subtree()