45 				    struct extent_buffer *leaf,
158 	struct extent_buffer *leaf;  in btrfs_lookup_extent_info()  local
208 		leaf = path->nodes[0];  in btrfs_lookup_extent_info()
209 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_lookup_extent_info()
211 			ei = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_lookup_extent_info()
213 			num_refs = btrfs_extent_refs(leaf, ei);  in btrfs_lookup_extent_info()
214 			extent_flags = btrfs_extent_flags(leaf, ei);  in btrfs_lookup_extent_info()
457 static u64 hash_extent_data_ref_item(struct extent_buffer *leaf,  in hash_extent_data_ref_item()  argument
460 	return hash_extent_data_ref(btrfs_extent_data_ref_root(leaf, ref),  in hash_extent_data_ref_item()
461 				    btrfs_extent_data_ref_objectid(leaf, ref),  in hash_extent_data_ref_item()
462 				    btrfs_extent_data_ref_offset(leaf, ref));  in hash_extent_data_ref_item()
465 static int match_extent_data_ref(struct extent_buffer *leaf,  in match_extent_data_ref()  argument
469 	if (btrfs_extent_data_ref_root(leaf, ref) != root_objectid ||  in match_extent_data_ref()
470 	    btrfs_extent_data_ref_objectid(leaf, ref) != owner ||  in match_extent_data_ref()
471 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in match_extent_data_ref()
485 	struct extent_buffer *leaf;  in lookup_extent_data_ref()  local
514 	leaf = path->nodes[0];  in lookup_extent_data_ref()
515 	nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
524 			leaf = path->nodes[0];  in lookup_extent_data_ref()
525 			nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
529 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in lookup_extent_data_ref()
534 		ref = btrfs_item_ptr(leaf, path->slots[0],  in lookup_extent_data_ref()
537 		if (match_extent_data_ref(leaf, ref, root_objectid,  in lookup_extent_data_ref()
560 	struct extent_buffer *leaf;  in insert_extent_data_ref()  local
581 	leaf = path->nodes[0];  in insert_extent_data_ref()
584 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
587 			btrfs_set_shared_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
589 			num_refs = btrfs_shared_data_ref_count(leaf, ref);  in insert_extent_data_ref()
591 			btrfs_set_shared_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
596 			ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
598 			if (match_extent_data_ref(leaf, ref, root_objectid,  in insert_extent_data_ref()
608 			leaf = path->nodes[0];  in insert_extent_data_ref()
610 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
613 			btrfs_set_extent_data_ref_root(leaf, ref,  in insert_extent_data_ref()
615 			btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in insert_extent_data_ref()
616 			btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in insert_extent_data_ref()
617 			btrfs_set_extent_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
619 			num_refs = btrfs_extent_data_ref_count(leaf, ref);  in insert_extent_data_ref()
621 			btrfs_set_extent_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
624 	btrfs_mark_buffer_dirty(leaf);  in insert_extent_data_ref()
638 	struct extent_buffer *leaf;  in remove_extent_data_ref()  local
642 	leaf = path->nodes[0];  in remove_extent_data_ref()
643 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in remove_extent_data_ref()
646 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
648 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in remove_extent_data_ref()
650 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
652 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in remove_extent_data_ref()
669 			btrfs_set_extent_data_ref_count(leaf, ref1, num_refs);  in remove_extent_data_ref()
671 			btrfs_set_shared_data_ref_count(leaf, ref2, num_refs);  in remove_extent_data_ref()
672 		btrfs_mark_buffer_dirty(leaf);  in remove_extent_data_ref()
681 	struct extent_buffer *leaf;  in extent_data_ref_count()  local
687 	leaf = path->nodes[0];  in extent_data_ref_count()
688 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in extent_data_ref_count()
696 		type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_DATA);  in extent_data_ref_count()
700 			num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
703 			num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
706 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
708 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
710 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
712 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
828 	struct extent_buffer *leaf;  in lookup_inline_extent_backref()  local
902 	leaf = path->nodes[0];  in lookup_inline_extent_backref()
903 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in lookup_inline_extent_backref()
911 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in lookup_inline_extent_backref()
912 	flags = btrfs_extent_flags(leaf, ei);  in lookup_inline_extent_backref()
934 		type = btrfs_get_extent_inline_ref_type(leaf, iref, needed);  in lookup_inline_extent_backref()
950 			if (match_extent_data_ref(leaf, dref, root_objectid,  in lookup_inline_extent_backref()
955 			if (hash_extent_data_ref_item(leaf, dref) <  in lookup_inline_extent_backref()
960 			ref_offset = btrfs_extent_inline_ref_offset(leaf, iref);  in lookup_inline_extent_backref()
1018 	struct extent_buffer *leaf;  in setup_inline_extent_backref()  local
1027 	leaf = path->nodes[0];  in setup_inline_extent_backref()
1028 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1036 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1037 	refs = btrfs_extent_refs(leaf, ei);  in setup_inline_extent_backref()
1039 	btrfs_set_extent_refs(leaf, ei, refs);  in setup_inline_extent_backref()
1041 		__run_delayed_extent_op(extent_op, leaf, ei);  in setup_inline_extent_backref()
1044 	end = (unsigned long)ei + btrfs_item_size_nr(leaf, path->slots[0]);  in setup_inline_extent_backref()
1046 		memmove_extent_buffer(leaf, ptr + size, ptr,  in setup_inline_extent_backref()
1050 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in setup_inline_extent_backref()
1054 		btrfs_set_extent_data_ref_root(leaf, dref, root_objectid);  in setup_inline_extent_backref()
1055 		btrfs_set_extent_data_ref_objectid(leaf, dref, owner);  in setup_inline_extent_backref()
1056 		btrfs_set_extent_data_ref_offset(leaf, dref, offset);  in setup_inline_extent_backref()
1057 		btrfs_set_extent_data_ref_count(leaf, dref, refs_to_add);  in setup_inline_extent_backref()
1061 		btrfs_set_shared_data_ref_count(leaf, sref, refs_to_add);  in setup_inline_extent_backref()
1062 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1064 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1066 		btrfs_set_extent_inline_ref_offset(leaf, iref, root_objectid);  in setup_inline_extent_backref()
1068 	btrfs_mark_buffer_dirty(leaf);  in setup_inline_extent_backref()
1108 	struct extent_buffer *leaf = path->nodes[0];  in update_inline_extent_backref()  local
1119 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in update_inline_extent_backref()
1120 	refs = btrfs_extent_refs(leaf, ei);  in update_inline_extent_backref()
1123 	btrfs_set_extent_refs(leaf, ei, refs);  in update_inline_extent_backref()
1125 		__run_delayed_extent_op(extent_op, leaf, ei);  in update_inline_extent_backref()
1131 	type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_ANY);  in update_inline_extent_backref()
1136 		refs = btrfs_extent_data_ref_count(leaf, dref);  in update_inline_extent_backref()
1139 		refs = btrfs_shared_data_ref_count(leaf, sref);  in update_inline_extent_backref()
1150 			btrfs_set_extent_data_ref_count(leaf, dref, refs);  in update_inline_extent_backref()
1152 			btrfs_set_shared_data_ref_count(leaf, sref, refs);  in update_inline_extent_backref()
1156 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in update_inline_extent_backref()
1160 			memmove_extent_buffer(leaf, ptr, ptr + size,  in update_inline_extent_backref()
1165 	btrfs_mark_buffer_dirty(leaf);  in update_inline_extent_backref()
1438 	struct extent_buffer *leaf;  in __btrfs_inc_extent_ref()  local
1464 	leaf = path->nodes[0];  in __btrfs_inc_extent_ref()
1465 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in __btrfs_inc_extent_ref()
1466 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in __btrfs_inc_extent_ref()
1467 	refs = btrfs_extent_refs(leaf, item);  in __btrfs_inc_extent_ref()
1468 	btrfs_set_extent_refs(leaf, item, refs + refs_to_add);  in __btrfs_inc_extent_ref()
1470 		__run_delayed_extent_op(extent_op, leaf, item);  in __btrfs_inc_extent_ref()
1472 	btrfs_mark_buffer_dirty(leaf);  in __btrfs_inc_extent_ref()
1533 				    struct extent_buffer *leaf,  in __run_delayed_extent_op()  argument
1536 	u64 flags = btrfs_extent_flags(leaf, ei);  in __run_delayed_extent_op()
1539 		btrfs_set_extent_flags(leaf, ei, flags);  in __run_delayed_extent_op()
1546 		btrfs_set_tree_block_key(leaf, bi, &extent_op->key);  in __run_delayed_extent_op()
1558 	struct extent_buffer *leaf;  in run_delayed_extent_op()  local
1618 	leaf = path->nodes[0];  in run_delayed_extent_op()
1619 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in run_delayed_extent_op()
1628 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in run_delayed_extent_op()
1629 	__run_delayed_extent_op(extent_op, leaf, ei);  in run_delayed_extent_op()
1631 	btrfs_mark_buffer_dirty(leaf);  in run_delayed_extent_op()
2327 	struct extent_buffer *leaf;  in check_committed_ref()  local
2350 	leaf = path->nodes[0];  in check_committed_ref()
2351 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in check_committed_ref()
2357 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in check_committed_ref()
2358 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in check_committed_ref()
2366 	if (btrfs_extent_generation(leaf, ei) <=  in check_committed_ref()
2373 	type = btrfs_get_extent_inline_ref_type(leaf, iref, BTRFS_REF_TYPE_DATA);  in check_committed_ref()
2378 	if (btrfs_extent_refs(leaf, ei) !=  in check_committed_ref()
2379 	    btrfs_extent_data_ref_count(leaf, ref) ||  in check_committed_ref()
2380 	    btrfs_extent_data_ref_root(leaf, ref) !=  in check_committed_ref()
2382 	    btrfs_extent_data_ref_objectid(leaf, ref) != objectid ||  in check_committed_ref()
2383 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in check_committed_ref()
2958 	struct extent_buffer *leaf;  in __btrfs_free_extent()  local
3084 	leaf = path->nodes[0];  in __btrfs_free_extent()
3085 	item_size = btrfs_item_size_nr(leaf, extent_slot);  in __btrfs_free_extent()
3092 	ei = btrfs_item_ptr(leaf, extent_slot,  in __btrfs_free_extent()
3099 		WARN_ON(owner_objectid != btrfs_tree_block_level(leaf, bi));  in __btrfs_free_extent()
3102 	refs = btrfs_extent_refs(leaf, ei);  in __btrfs_free_extent()
3115 			__run_delayed_extent_op(extent_op, leaf, ei);  in __btrfs_free_extent()
3123 			btrfs_set_extent_refs(leaf, ei, refs);  in __btrfs_free_extent()
3124 			btrfs_mark_buffer_dirty(leaf);  in __btrfs_free_extent()
4182 	struct extent_buffer *leaf;  in alloc_reserved_file_extent()  local
4205 	leaf = path->nodes[0];  in alloc_reserved_file_extent()
4206 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_file_extent()
4208 	btrfs_set_extent_refs(leaf, extent_item, ref_mod);  in alloc_reserved_file_extent()
4209 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_file_extent()
4210 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_file_extent()
4214 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in alloc_reserved_file_extent()
4218 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in alloc_reserved_file_extent()
4219 		btrfs_set_shared_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
4223 		btrfs_set_extent_data_ref_root(leaf, ref, root_objectid);  in alloc_reserved_file_extent()
4224 		btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in alloc_reserved_file_extent()
4225 		btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in alloc_reserved_file_extent()
4226 		btrfs_set_extent_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
4257 	struct extent_buffer *leaf;  in alloc_reserved_tree_block()  local
4290 	leaf = path->nodes[0];  in alloc_reserved_tree_block()
4291 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_tree_block()
4293 	btrfs_set_extent_refs(leaf, extent_item, 1);  in alloc_reserved_tree_block()
4294 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_tree_block()
4295 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_tree_block()
4302 		btrfs_set_tree_block_key(leaf, block_info, &extent_op->key);  in alloc_reserved_tree_block()
4303 		btrfs_set_tree_block_level(leaf, block_info, ref->level);  in alloc_reserved_tree_block()
4309 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
4311 		btrfs_set_extent_inline_ref_offset(leaf, iref, ref->parent);  in alloc_reserved_tree_block()
4313 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
4315 		btrfs_set_extent_inline_ref_offset(leaf, iref, ref->root);  in alloc_reserved_tree_block()
4318 	btrfs_mark_buffer_dirty(leaf);  in alloc_reserved_tree_block()