47 				    struct extent_buffer *leaf,
156 	struct extent_buffer *leaf;  in btrfs_lookup_extent_info()  local
206 		leaf = path->nodes[0];  in btrfs_lookup_extent_info()
207 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_lookup_extent_info()
209 			ei = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_lookup_extent_info()
211 			num_refs = btrfs_extent_refs(leaf, ei);  in btrfs_lookup_extent_info()
212 			extent_flags = btrfs_extent_flags(leaf, ei);  in btrfs_lookup_extent_info()
454 static u64 hash_extent_data_ref_item(struct extent_buffer *leaf,  in hash_extent_data_ref_item()  argument
457 	return hash_extent_data_ref(btrfs_extent_data_ref_root(leaf, ref),  in hash_extent_data_ref_item()
458 				    btrfs_extent_data_ref_objectid(leaf, ref),  in hash_extent_data_ref_item()
459 				    btrfs_extent_data_ref_offset(leaf, ref));  in hash_extent_data_ref_item()
462 static int match_extent_data_ref(struct extent_buffer *leaf,  in match_extent_data_ref()  argument
466 	if (btrfs_extent_data_ref_root(leaf, ref) != root_objectid ||  in match_extent_data_ref()
467 	    btrfs_extent_data_ref_objectid(leaf, ref) != owner ||  in match_extent_data_ref()
468 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in match_extent_data_ref()
482 	struct extent_buffer *leaf;  in lookup_extent_data_ref()  local
511 	leaf = path->nodes[0];  in lookup_extent_data_ref()
512 	nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
521 			leaf = path->nodes[0];  in lookup_extent_data_ref()
522 			nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
526 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in lookup_extent_data_ref()
531 		ref = btrfs_item_ptr(leaf, path->slots[0],  in lookup_extent_data_ref()
534 		if (match_extent_data_ref(leaf, ref, root_objectid,  in lookup_extent_data_ref()
557 	struct extent_buffer *leaf;  in insert_extent_data_ref()  local
578 	leaf = path->nodes[0];  in insert_extent_data_ref()
581 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
584 			btrfs_set_shared_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
586 			num_refs = btrfs_shared_data_ref_count(leaf, ref);  in insert_extent_data_ref()
588 			btrfs_set_shared_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
593 			ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
595 			if (match_extent_data_ref(leaf, ref, root_objectid,  in insert_extent_data_ref()
605 			leaf = path->nodes[0];  in insert_extent_data_ref()
607 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
610 			btrfs_set_extent_data_ref_root(leaf, ref,  in insert_extent_data_ref()
612 			btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in insert_extent_data_ref()
613 			btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in insert_extent_data_ref()
614 			btrfs_set_extent_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
616 			num_refs = btrfs_extent_data_ref_count(leaf, ref);  in insert_extent_data_ref()
618 			btrfs_set_extent_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
621 	btrfs_mark_buffer_dirty(leaf);  in insert_extent_data_ref()
635 	struct extent_buffer *leaf;  in remove_extent_data_ref()  local
639 	leaf = path->nodes[0];  in remove_extent_data_ref()
640 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in remove_extent_data_ref()
643 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
645 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in remove_extent_data_ref()
647 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
649 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in remove_extent_data_ref()
666 			btrfs_set_extent_data_ref_count(leaf, ref1, num_refs);  in remove_extent_data_ref()
668 			btrfs_set_shared_data_ref_count(leaf, ref2, num_refs);  in remove_extent_data_ref()
669 		btrfs_mark_buffer_dirty(leaf);  in remove_extent_data_ref()
678 	struct extent_buffer *leaf;  in extent_data_ref_count()  local
684 	leaf = path->nodes[0];  in extent_data_ref_count()
685 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in extent_data_ref_count()
693 		type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_DATA);  in extent_data_ref_count()
697 			num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
700 			num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
703 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
705 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
707 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
709 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
825 	struct extent_buffer *leaf;  in lookup_inline_extent_backref()  local
899 	leaf = path->nodes[0];  in lookup_inline_extent_backref()
900 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in lookup_inline_extent_backref()
908 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in lookup_inline_extent_backref()
909 	flags = btrfs_extent_flags(leaf, ei);  in lookup_inline_extent_backref()
931 		type = btrfs_get_extent_inline_ref_type(leaf, iref, needed);  in lookup_inline_extent_backref()
947 			if (match_extent_data_ref(leaf, dref, root_objectid,  in lookup_inline_extent_backref()
952 			if (hash_extent_data_ref_item(leaf, dref) <  in lookup_inline_extent_backref()
957 			ref_offset = btrfs_extent_inline_ref_offset(leaf, iref);  in lookup_inline_extent_backref()
1015 	struct extent_buffer *leaf;  in setup_inline_extent_backref()  local
1024 	leaf = path->nodes[0];  in setup_inline_extent_backref()
1025 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1033 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1034 	refs = btrfs_extent_refs(leaf, ei);  in setup_inline_extent_backref()
1036 	btrfs_set_extent_refs(leaf, ei, refs);  in setup_inline_extent_backref()
1038 		__run_delayed_extent_op(extent_op, leaf, ei);  in setup_inline_extent_backref()
1041 	end = (unsigned long)ei + btrfs_item_size_nr(leaf, path->slots[0]);  in setup_inline_extent_backref()
1043 		memmove_extent_buffer(leaf, ptr + size, ptr,  in setup_inline_extent_backref()
1047 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in setup_inline_extent_backref()
1051 		btrfs_set_extent_data_ref_root(leaf, dref, root_objectid);  in setup_inline_extent_backref()
1052 		btrfs_set_extent_data_ref_objectid(leaf, dref, owner);  in setup_inline_extent_backref()
1053 		btrfs_set_extent_data_ref_offset(leaf, dref, offset);  in setup_inline_extent_backref()
1054 		btrfs_set_extent_data_ref_count(leaf, dref, refs_to_add);  in setup_inline_extent_backref()
1058 		btrfs_set_shared_data_ref_count(leaf, sref, refs_to_add);  in setup_inline_extent_backref()
1059 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1061 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1063 		btrfs_set_extent_inline_ref_offset(leaf, iref, root_objectid);  in setup_inline_extent_backref()
1065 	btrfs_mark_buffer_dirty(leaf);  in setup_inline_extent_backref()
1105 	struct extent_buffer *leaf = path->nodes[0];  in update_inline_extent_backref()  local
1116 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in update_inline_extent_backref()
1117 	refs = btrfs_extent_refs(leaf, ei);  in update_inline_extent_backref()
1120 	btrfs_set_extent_refs(leaf, ei, refs);  in update_inline_extent_backref()
1122 		__run_delayed_extent_op(extent_op, leaf, ei);  in update_inline_extent_backref()
1128 	type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_ANY);  in update_inline_extent_backref()
1133 		refs = btrfs_extent_data_ref_count(leaf, dref);  in update_inline_extent_backref()
1136 		refs = btrfs_shared_data_ref_count(leaf, sref);  in update_inline_extent_backref()
1147 			btrfs_set_extent_data_ref_count(leaf, dref, refs);  in update_inline_extent_backref()
1149 			btrfs_set_shared_data_ref_count(leaf, sref, refs);  in update_inline_extent_backref()
1153 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in update_inline_extent_backref()
1157 			memmove_extent_buffer(leaf, ptr, ptr + size,  in update_inline_extent_backref()
1162 	btrfs_mark_buffer_dirty(leaf);  in update_inline_extent_backref()
1456 	struct extent_buffer *leaf;  in __btrfs_inc_extent_ref()  local
1481 	leaf = path->nodes[0];  in __btrfs_inc_extent_ref()
1482 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in __btrfs_inc_extent_ref()
1483 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in __btrfs_inc_extent_ref()
1484 	refs = btrfs_extent_refs(leaf, item);  in __btrfs_inc_extent_ref()
1485 	btrfs_set_extent_refs(leaf, item, refs + refs_to_add);  in __btrfs_inc_extent_ref()
1487 		__run_delayed_extent_op(extent_op, leaf, item);  in __btrfs_inc_extent_ref()
1489 	btrfs_mark_buffer_dirty(leaf);  in __btrfs_inc_extent_ref()
1556 				    struct extent_buffer *leaf,  in __run_delayed_extent_op()  argument
1559 	u64 flags = btrfs_extent_flags(leaf, ei);  in __run_delayed_extent_op()
1562 		btrfs_set_extent_flags(leaf, ei, flags);  in __run_delayed_extent_op()
1569 		btrfs_set_tree_block_key(leaf, bi, &extent_op->key);  in __run_delayed_extent_op()
1581 	struct extent_buffer *leaf;  in run_delayed_extent_op()  local
1640 	leaf = path->nodes[0];  in run_delayed_extent_op()
1641 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in run_delayed_extent_op()
1650 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in run_delayed_extent_op()
1651 	__run_delayed_extent_op(extent_op, leaf, ei);  in run_delayed_extent_op()
1653 	btrfs_mark_buffer_dirty(leaf);  in run_delayed_extent_op()
2331 	struct extent_buffer *leaf;  in check_committed_ref()  local
2354 	leaf = path->nodes[0];  in check_committed_ref()
2355 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in check_committed_ref()
2361 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in check_committed_ref()
2362 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in check_committed_ref()
2374 	    (btrfs_extent_generation(leaf, ei) <=  in check_committed_ref()
2381 	type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_DATA);  in check_committed_ref()
2386 	if (btrfs_extent_refs(leaf, ei) !=  in check_committed_ref()
2387 	    btrfs_extent_data_ref_count(leaf, ref) ||  in check_committed_ref()
2388 	    btrfs_extent_data_ref_root(leaf, ref) !=  in check_committed_ref()
2390 	    btrfs_extent_data_ref_objectid(leaf, ref) != objectid ||  in check_committed_ref()
2391 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in check_committed_ref()
3024 	struct extent_buffer *leaf;  in __btrfs_free_extent()  local
3173 	leaf = path->nodes[0];  in __btrfs_free_extent()
3174 	item_size = btrfs_item_size_nr(leaf, extent_slot);  in __btrfs_free_extent()
3181 	ei = btrfs_item_ptr(leaf, extent_slot,  in __btrfs_free_extent()
3196 		WARN_ON(owner_objectid != btrfs_tree_block_level(leaf, bi));  in __btrfs_free_extent()
3199 	refs = btrfs_extent_refs(leaf, ei);  in __btrfs_free_extent()
3211 			__run_delayed_extent_op(extent_op, leaf, ei);  in __btrfs_free_extent()
3224 			btrfs_set_extent_refs(leaf, ei, refs);  in __btrfs_free_extent()
3225 			btrfs_mark_buffer_dirty(leaf);  in __btrfs_free_extent()
4436 	struct extent_buffer *leaf;  in alloc_reserved_file_extent()  local
4459 	leaf = path->nodes[0];  in alloc_reserved_file_extent()
4460 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_file_extent()
4462 	btrfs_set_extent_refs(leaf, extent_item, ref_mod);  in alloc_reserved_file_extent()
4463 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_file_extent()
4464 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_file_extent()
4468 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in alloc_reserved_file_extent()
4472 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in alloc_reserved_file_extent()
4473 		btrfs_set_shared_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
4477 		btrfs_set_extent_data_ref_root(leaf, ref, root_objectid);  in alloc_reserved_file_extent()
4478 		btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in alloc_reserved_file_extent()
4479 		btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in alloc_reserved_file_extent()
4480 		btrfs_set_extent_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
4511 	struct extent_buffer *leaf;  in alloc_reserved_tree_block()  local
4544 	leaf = path->nodes[0];  in alloc_reserved_tree_block()
4545 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_tree_block()
4547 	btrfs_set_extent_refs(leaf, extent_item, 1);  in alloc_reserved_tree_block()
4548 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_tree_block()
4549 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_tree_block()
4556 		btrfs_set_tree_block_key(leaf, block_info, &extent_op->key);  in alloc_reserved_tree_block()
4557 		btrfs_set_tree_block_level(leaf, block_info, ref->level);  in alloc_reserved_tree_block()
4563 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
4565 		btrfs_set_extent_inline_ref_offset(leaf, iref, ref->parent);  in alloc_reserved_tree_block()
4567 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
4569 		btrfs_set_extent_inline_ref_offset(leaf, iref, ref->root);  in alloc_reserved_tree_block()
4572 	btrfs_mark_buffer_dirty(leaf);  in alloc_reserved_tree_block()