49 				    struct extent_buffer *leaf,
125 	struct extent_buffer *leaf;  in btrfs_lookup_extent_info()  local
176 		leaf = path->nodes[0];  in btrfs_lookup_extent_info()
177 		item_size = btrfs_item_size(leaf, path->slots[0]);  in btrfs_lookup_extent_info()
179 			ei = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_lookup_extent_info()
181 			num_refs = btrfs_extent_refs(leaf, ei);  in btrfs_lookup_extent_info()
182 			extent_flags = btrfs_extent_flags(leaf, ei);  in btrfs_lookup_extent_info()
424 static u64 hash_extent_data_ref_item(struct extent_buffer *leaf,  in hash_extent_data_ref_item()  argument
427 	return hash_extent_data_ref(btrfs_extent_data_ref_root(leaf, ref),  in hash_extent_data_ref_item()
428 				    btrfs_extent_data_ref_objectid(leaf, ref),  in hash_extent_data_ref_item()
429 				    btrfs_extent_data_ref_offset(leaf, ref));  in hash_extent_data_ref_item()
432 static int match_extent_data_ref(struct extent_buffer *leaf,  in match_extent_data_ref()  argument
436 	if (btrfs_extent_data_ref_root(leaf, ref) != root_objectid ||  in match_extent_data_ref()
437 	    btrfs_extent_data_ref_objectid(leaf, ref) != owner ||  in match_extent_data_ref()
438 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in match_extent_data_ref()
452 	struct extent_buffer *leaf;  in lookup_extent_data_ref()  local
481 	leaf = path->nodes[0];  in lookup_extent_data_ref()
482 	nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
491 			leaf = path->nodes[0];  in lookup_extent_data_ref()
492 			nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
496 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in lookup_extent_data_ref()
501 		ref = btrfs_item_ptr(leaf, path->slots[0],  in lookup_extent_data_ref()
504 		if (match_extent_data_ref(leaf, ref, root_objectid,  in lookup_extent_data_ref()
527 	struct extent_buffer *leaf;  in insert_extent_data_ref()  local
548 	leaf = path->nodes[0];  in insert_extent_data_ref()
551 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
554 			btrfs_set_shared_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
556 			num_refs = btrfs_shared_data_ref_count(leaf, ref);  in insert_extent_data_ref()
558 			btrfs_set_shared_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
563 			ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
565 			if (match_extent_data_ref(leaf, ref, root_objectid,  in insert_extent_data_ref()
575 			leaf = path->nodes[0];  in insert_extent_data_ref()
577 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
580 			btrfs_set_extent_data_ref_root(leaf, ref,  in insert_extent_data_ref()
582 			btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in insert_extent_data_ref()
583 			btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in insert_extent_data_ref()
584 			btrfs_set_extent_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
586 			num_refs = btrfs_extent_data_ref_count(leaf, ref);  in insert_extent_data_ref()
588 			btrfs_set_extent_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
591 	btrfs_mark_buffer_dirty(leaf);  in insert_extent_data_ref()
606 	struct extent_buffer *leaf;  in remove_extent_data_ref()  local
610 	leaf = path->nodes[0];  in remove_extent_data_ref()
611 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in remove_extent_data_ref()
614 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
616 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in remove_extent_data_ref()
618 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
620 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in remove_extent_data_ref()
636 			btrfs_set_extent_data_ref_count(leaf, ref1, num_refs);  in remove_extent_data_ref()
638 			btrfs_set_shared_data_ref_count(leaf, ref2, num_refs);  in remove_extent_data_ref()
639 		btrfs_mark_buffer_dirty(leaf);  in remove_extent_data_ref()
648 	struct extent_buffer *leaf;  in extent_data_ref_count()  local
654 	leaf = path->nodes[0];  in extent_data_ref_count()
655 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in extent_data_ref_count()
663 		type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_DATA);  in extent_data_ref_count()
667 			num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
670 			num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
673 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
675 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
677 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
679 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
795 	struct extent_buffer *leaf;  in lookup_inline_extent_backref()  local
870 	leaf = path->nodes[0];  in lookup_inline_extent_backref()
871 	item_size = btrfs_item_size(leaf, path->slots[0]);  in lookup_inline_extent_backref()
879 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in lookup_inline_extent_backref()
880 	flags = btrfs_extent_flags(leaf, ei);  in lookup_inline_extent_backref()
908 		type = btrfs_get_extent_inline_ref_type(leaf, iref, needed);  in lookup_inline_extent_backref()
924 			if (match_extent_data_ref(leaf, dref, root_objectid,  in lookup_inline_extent_backref()
929 			if (hash_extent_data_ref_item(leaf, dref) <  in lookup_inline_extent_backref()
934 			ref_offset = btrfs_extent_inline_ref_offset(leaf, iref);  in lookup_inline_extent_backref()
993 	struct extent_buffer *leaf;  in setup_inline_extent_backref()  local
1002 	leaf = path->nodes[0];  in setup_inline_extent_backref()
1003 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1011 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1012 	refs = btrfs_extent_refs(leaf, ei);  in setup_inline_extent_backref()
1014 	btrfs_set_extent_refs(leaf, ei, refs);  in setup_inline_extent_backref()
1016 		__run_delayed_extent_op(extent_op, leaf, ei);  in setup_inline_extent_backref()
1019 	end = (unsigned long)ei + btrfs_item_size(leaf, path->slots[0]);  in setup_inline_extent_backref()
1021 		memmove_extent_buffer(leaf, ptr + size, ptr,  in setup_inline_extent_backref()
1025 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in setup_inline_extent_backref()
1029 		btrfs_set_extent_data_ref_root(leaf, dref, root_objectid);  in setup_inline_extent_backref()
1030 		btrfs_set_extent_data_ref_objectid(leaf, dref, owner);  in setup_inline_extent_backref()
1031 		btrfs_set_extent_data_ref_offset(leaf, dref, offset);  in setup_inline_extent_backref()
1032 		btrfs_set_extent_data_ref_count(leaf, dref, refs_to_add);  in setup_inline_extent_backref()
1036 		btrfs_set_shared_data_ref_count(leaf, sref, refs_to_add);  in setup_inline_extent_backref()
1037 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1039 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1041 		btrfs_set_extent_inline_ref_offset(leaf, iref, root_objectid);  in setup_inline_extent_backref()
1043 	btrfs_mark_buffer_dirty(leaf);  in setup_inline_extent_backref()
1082 	struct extent_buffer *leaf = path->nodes[0];  in update_inline_extent_backref()  local
1093 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in update_inline_extent_backref()
1094 	refs = btrfs_extent_refs(leaf, ei);  in update_inline_extent_backref()
1097 	btrfs_set_extent_refs(leaf, ei, refs);  in update_inline_extent_backref()
1099 		__run_delayed_extent_op(extent_op, leaf, ei);  in update_inline_extent_backref()
1105 	type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_ANY);  in update_inline_extent_backref()
1110 		refs = btrfs_extent_data_ref_count(leaf, dref);  in update_inline_extent_backref()
1113 		refs = btrfs_shared_data_ref_count(leaf, sref);  in update_inline_extent_backref()
1124 			btrfs_set_extent_data_ref_count(leaf, dref, refs);  in update_inline_extent_backref()
1126 			btrfs_set_shared_data_ref_count(leaf, sref, refs);  in update_inline_extent_backref()
1129 		item_size = btrfs_item_size(leaf, path->slots[0]);  in update_inline_extent_backref()
1133 			memmove_extent_buffer(leaf, ptr, ptr + size,  in update_inline_extent_backref()
1138 	btrfs_mark_buffer_dirty(leaf);  in update_inline_extent_backref()
1442 	struct extent_buffer *leaf;  in __btrfs_inc_extent_ref()  local
1466 	leaf = path->nodes[0];  in __btrfs_inc_extent_ref()
1467 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in __btrfs_inc_extent_ref()
1468 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in __btrfs_inc_extent_ref()
1469 	refs = btrfs_extent_refs(leaf, item);  in __btrfs_inc_extent_ref()
1470 	btrfs_set_extent_refs(leaf, item, refs + refs_to_add);  in __btrfs_inc_extent_ref()
1472 		__run_delayed_extent_op(extent_op, leaf, item);  in __btrfs_inc_extent_ref()
1474 	btrfs_mark_buffer_dirty(leaf);  in __btrfs_inc_extent_ref()
1540 				    struct extent_buffer *leaf,  in __run_delayed_extent_op()  argument
1543 	u64 flags = btrfs_extent_flags(leaf, ei);  in __run_delayed_extent_op()
1546 		btrfs_set_extent_flags(leaf, ei, flags);  in __run_delayed_extent_op()
1553 		btrfs_set_tree_block_key(leaf, bi, &extent_op->key);  in __run_delayed_extent_op()
1566 	struct extent_buffer *leaf;  in run_delayed_extent_op()  local
1625 	leaf = path->nodes[0];  in run_delayed_extent_op()
1626 	item_size = btrfs_item_size(leaf, path->slots[0]);  in run_delayed_extent_op()
1635 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in run_delayed_extent_op()
1636 	__run_delayed_extent_op(extent_op, leaf, ei);  in run_delayed_extent_op()
1638 	btrfs_mark_buffer_dirty(leaf);  in run_delayed_extent_op()
2286 	struct extent_buffer *leaf;  in check_committed_ref()  local
2309 	leaf = path->nodes[0];  in check_committed_ref()
2310 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in check_committed_ref()
2316 	item_size = btrfs_item_size(leaf, path->slots[0]);  in check_committed_ref()
2317 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in check_committed_ref()
2329 	    (btrfs_extent_generation(leaf, ei) <=  in check_committed_ref()
2336 	type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_DATA);  in check_committed_ref()
2341 	if (btrfs_extent_refs(leaf, ei) !=  in check_committed_ref()
2342 	    btrfs_extent_data_ref_count(leaf, ref) ||  in check_committed_ref()
2343 	    btrfs_extent_data_ref_root(leaf, ref) !=  in check_committed_ref()
2345 	    btrfs_extent_data_ref_objectid(leaf, ref) != objectid ||  in check_committed_ref()
2346 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in check_committed_ref()
2924 	struct extent_buffer *leaf;  in __btrfs_free_extent()  local
3071 	leaf = path->nodes[0];  in __btrfs_free_extent()
3072 	item_size = btrfs_item_size(leaf, extent_slot);  in __btrfs_free_extent()
3079 	ei = btrfs_item_ptr(leaf, extent_slot,  in __btrfs_free_extent()
3094 		WARN_ON(owner_objectid != btrfs_tree_block_level(leaf, bi));  in __btrfs_free_extent()
3097 	refs = btrfs_extent_refs(leaf, ei);  in __btrfs_free_extent()
3109 			__run_delayed_extent_op(extent_op, leaf, ei);  in __btrfs_free_extent()
3122 			btrfs_set_extent_refs(leaf, ei, refs);  in __btrfs_free_extent()
3123 			btrfs_mark_buffer_dirty(leaf);  in __btrfs_free_extent()
4664 	struct extent_buffer *leaf;  in alloc_reserved_file_extent()  local
4686 	leaf = path->nodes[0];  in alloc_reserved_file_extent()
4687 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_file_extent()
4689 	btrfs_set_extent_refs(leaf, extent_item, ref_mod);  in alloc_reserved_file_extent()
4690 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_file_extent()
4691 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_file_extent()
4695 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in alloc_reserved_file_extent()
4699 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in alloc_reserved_file_extent()
4700 		btrfs_set_shared_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
4704 		btrfs_set_extent_data_ref_root(leaf, ref, root_objectid);  in alloc_reserved_file_extent()
4705 		btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in alloc_reserved_file_extent()
4706 		btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in alloc_reserved_file_extent()
4707 		btrfs_set_extent_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
4728 	struct extent_buffer *leaf;  in alloc_reserved_tree_block()  local
4758 	leaf = path->nodes[0];  in alloc_reserved_tree_block()
4759 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_tree_block()
4761 	btrfs_set_extent_refs(leaf, extent_item, 1);  in alloc_reserved_tree_block()
4762 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_tree_block()
4763 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_tree_block()
4770 		btrfs_set_tree_block_key(leaf, block_info, &extent_op->key);  in alloc_reserved_tree_block()
4771 		btrfs_set_tree_block_level(leaf, block_info, ref->level);  in alloc_reserved_tree_block()
4776 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
4778 		btrfs_set_extent_inline_ref_offset(leaf, iref, ref->parent);  in alloc_reserved_tree_block()
4780 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
4782 		btrfs_set_extent_inline_ref_offset(leaf, iref, ref->root);  in alloc_reserved_tree_block()
4785 	btrfs_mark_buffer_dirty(leaf);  in alloc_reserved_tree_block()