117 			     u64 offset, int metadata, u64 *refs, u64 *flags)  in btrfs_lookup_extent_info()  argument
206 			refcount_inc(&head->refs);  in btrfs_lookup_extent_info()
233 	if (refs)  in btrfs_lookup_extent_info()
234 		*refs = num_refs;  in btrfs_lookup_extent_info()
994 	u64 refs;  in setup_inline_extent_backref()  local
1008 	refs = btrfs_extent_refs(leaf, ei);  in setup_inline_extent_backref()
1009 	refs += refs_to_add;  in setup_inline_extent_backref()
1010 	btrfs_set_extent_refs(leaf, ei, refs);  in setup_inline_extent_backref()
1088 	u64 refs;  in update_inline_extent_backref()  local
1091 	refs = btrfs_extent_refs(leaf, ei);  in update_inline_extent_backref()
1092 	WARN_ON(refs_to_mod < 0 && refs + refs_to_mod <= 0);  in update_inline_extent_backref()
1093 	refs += refs_to_mod;  in update_inline_extent_backref()
1094 	btrfs_set_extent_refs(leaf, ei, refs);  in update_inline_extent_backref()
1107 		refs = btrfs_extent_data_ref_count(leaf, dref);  in update_inline_extent_backref()
1110 		refs = btrfs_shared_data_ref_count(leaf, sref);  in update_inline_extent_backref()
1112 		refs = 1;  in update_inline_extent_backref()
1116 	BUG_ON(refs_to_mod < 0 && refs < -refs_to_mod);  in update_inline_extent_backref()
1117 	refs += refs_to_mod;  in update_inline_extent_backref()
1119 	if (refs > 0) {  in update_inline_extent_backref()
1121 			btrfs_set_extent_data_ref_count(leaf, dref, refs);  in update_inline_extent_backref()
1123 			btrfs_set_shared_data_ref_count(leaf, sref, refs);  in update_inline_extent_backref()
1466 	u64 refs;  in __btrfs_inc_extent_ref()  local
1488 	refs = btrfs_extent_refs(leaf, item);  in __btrfs_inc_extent_ref()
1489 	btrfs_set_extent_refs(leaf, item, refs + refs_to_add);  in __btrfs_inc_extent_ref()
2173 		refcount_inc(&head->refs);  in btrfs_run_delayed_refs()
2241 		refcount_inc(&head->refs);  in check_delayed_ref()
2934 	u64 refs;  in __btrfs_free_extent()  local
3097 	refs = btrfs_extent_refs(leaf, ei);  in __btrfs_free_extent()
3098 	if (refs < refs_to_drop) {  in __btrfs_free_extent()
3101 			  refs_to_drop, refs, bytenr);  in __btrfs_free_extent()
3105 	refs -= refs_to_drop;  in __btrfs_free_extent()
3107 	if (refs > 0) {  in __btrfs_free_extent()
3122 			btrfs_set_extent_refs(leaf, ei, refs);  in __btrfs_free_extent()
4961 	u64 refs[BTRFS_MAX_LEVEL];  member
4987 	u64 refs;  in reada_walk_down()  local
5025 					       wc->level - 1, 1, &refs,  in reada_walk_down()
5030 		BUG_ON(refs == 0);  in reada_walk_down()
5033 			if (refs == 1)  in reada_walk_down()
5087 	    ((wc->stage == DROP_REFERENCE && wc->refs[level] != 1) ||  in walk_down_proc()
5092 					       &wc->refs[level],  in walk_down_proc()
5097 		BUG_ON(wc->refs[level] == 0);  in walk_down_proc()
5101 		if (wc->refs[level] > 1)  in walk_down_proc()
5221 				       &wc->refs[level - 1],  in do_walk_down()
5226 	if (unlikely(wc->refs[level - 1] == 0)) {  in do_walk_down()
5234 		if (wc->refs[level - 1] > 1) {  in do_walk_down()
5295 	wc->refs[level - 1] = 0;  in do_walk_down()
5422 						       &wc->refs[level],  in walk_up_proc()
5429 			BUG_ON(wc->refs[level] == 0);  in walk_up_proc()
5430 			if (wc->refs[level] == 1) {  in walk_up_proc()
5439 	BUG_ON(wc->refs[level] > 1 && !path->locks[level]);  in walk_up_proc()
5441 	if (wc->refs[level] == 1) {  in walk_up_proc()
5480 			      wc->refs[level] == 1);  in walk_up_proc()
5482 	wc->refs[level] = 0;  in walk_up_proc()
5666 						level, 1, &wc->refs[level],  in btrfs_drop_snapshot()
5672 			BUG_ON(wc->refs[level] == 0);  in btrfs_drop_snapshot()
5679 			WARN_ON(wc->refs[level] != 1);  in btrfs_drop_snapshot()
5856 	atomic_inc(&parent->refs);  in btrfs_drop_subtree()
5866 	wc->refs[parent_level] = 1;  in btrfs_drop_subtree()