87 				    struct extent_buffer *leaf,
405 	struct extent_buffer *leaf;  in caching_thread()  local
456 	leaf = path->nodes[0];  in caching_thread()
457 	nritems = btrfs_header_nritems(leaf);  in caching_thread()
466 			btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in caching_thread()
488 			leaf = path->nodes[0];  in caching_thread()
489 			nritems = btrfs_header_nritems(leaf);  in caching_thread()
813 	struct extent_buffer *leaf;  in btrfs_lookup_extent_info()  local
864 		leaf = path->nodes[0];  in btrfs_lookup_extent_info()
865 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_lookup_extent_info()
867 			ei = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_lookup_extent_info()
869 			num_refs = btrfs_extent_refs(leaf, ei);  in btrfs_lookup_extent_info()
870 			extent_flags = btrfs_extent_flags(leaf, ei);  in btrfs_lookup_extent_info()
875 			ei0 = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_lookup_extent_info()
877 			num_refs = btrfs_extent_refs_v0(leaf, ei0);  in btrfs_lookup_extent_info()
1051 	struct extent_buffer *leaf;  in convert_extent_item_v0()  local
1058 	leaf = path->nodes[0];  in convert_extent_item_v0()
1059 	BUG_ON(btrfs_item_size_nr(leaf, path->slots[0]) != sizeof(*ei0));  in convert_extent_item_v0()
1061 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in convert_extent_item_v0()
1062 	ei0 = btrfs_item_ptr(leaf, path->slots[0],  in convert_extent_item_v0()
1064 	refs = btrfs_extent_refs_v0(leaf, ei0);  in convert_extent_item_v0()
1068 			if (path->slots[0] >= btrfs_header_nritems(leaf)) {  in convert_extent_item_v0()
1073 				leaf = path->nodes[0];  in convert_extent_item_v0()
1075 			btrfs_item_key_to_cpu(leaf, &found_key,  in convert_extent_item_v0()
1082 			ref0 = btrfs_item_ptr(leaf, path->slots[0],  in convert_extent_item_v0()
1084 			owner = btrfs_ref_objectid_v0(leaf, ref0);  in convert_extent_item_v0()
1102 	leaf = path->nodes[0];  in convert_extent_item_v0()
1103 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in convert_extent_item_v0()
1104 	btrfs_set_extent_refs(leaf, item, refs);  in convert_extent_item_v0()
1106 	btrfs_set_extent_generation(leaf, item, 0);  in convert_extent_item_v0()
1108 		btrfs_set_extent_flags(leaf, item,  in convert_extent_item_v0()
1113 		memset_extent_buffer(leaf, 0, (unsigned long)bi, sizeof(*bi));  in convert_extent_item_v0()
1114 		btrfs_set_tree_block_level(leaf, bi, (int)owner);  in convert_extent_item_v0()
1116 		btrfs_set_extent_flags(leaf, item, BTRFS_EXTENT_FLAG_DATA);  in convert_extent_item_v0()
1118 	btrfs_mark_buffer_dirty(leaf);  in convert_extent_item_v0()
1139 static u64 hash_extent_data_ref_item(struct extent_buffer *leaf,  in hash_extent_data_ref_item()  argument
1142 	return hash_extent_data_ref(btrfs_extent_data_ref_root(leaf, ref),  in hash_extent_data_ref_item()
1143 				    btrfs_extent_data_ref_objectid(leaf, ref),  in hash_extent_data_ref_item()
1144 				    btrfs_extent_data_ref_offset(leaf, ref));  in hash_extent_data_ref_item()
1147 static int match_extent_data_ref(struct extent_buffer *leaf,  in match_extent_data_ref()  argument
1151 	if (btrfs_extent_data_ref_root(leaf, ref) != root_objectid ||  in match_extent_data_ref()
1152 	    btrfs_extent_data_ref_objectid(leaf, ref) != owner ||  in match_extent_data_ref()
1153 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in match_extent_data_ref()
1167 	struct extent_buffer *leaf;  in lookup_extent_data_ref()  local
1207 	leaf = path->nodes[0];  in lookup_extent_data_ref()
1208 	nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
1217 			leaf = path->nodes[0];  in lookup_extent_data_ref()
1218 			nritems = btrfs_header_nritems(leaf);  in lookup_extent_data_ref()
1222 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in lookup_extent_data_ref()
1227 		ref = btrfs_item_ptr(leaf, path->slots[0],  in lookup_extent_data_ref()
1230 		if (match_extent_data_ref(leaf, ref, root_objectid,  in lookup_extent_data_ref()
1253 	struct extent_buffer *leaf;  in insert_extent_data_ref()  local
1274 	leaf = path->nodes[0];  in insert_extent_data_ref()
1277 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
1280 			btrfs_set_shared_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
1282 			num_refs = btrfs_shared_data_ref_count(leaf, ref);  in insert_extent_data_ref()
1284 			btrfs_set_shared_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
1289 			ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
1291 			if (match_extent_data_ref(leaf, ref, root_objectid,  in insert_extent_data_ref()
1301 			leaf = path->nodes[0];  in insert_extent_data_ref()
1303 		ref = btrfs_item_ptr(leaf, path->slots[0],  in insert_extent_data_ref()
1306 			btrfs_set_extent_data_ref_root(leaf, ref,  in insert_extent_data_ref()
1308 			btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in insert_extent_data_ref()
1309 			btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in insert_extent_data_ref()
1310 			btrfs_set_extent_data_ref_count(leaf, ref, refs_to_add);  in insert_extent_data_ref()
1312 			num_refs = btrfs_extent_data_ref_count(leaf, ref);  in insert_extent_data_ref()
1314 			btrfs_set_extent_data_ref_count(leaf, ref, num_refs);  in insert_extent_data_ref()
1317 	btrfs_mark_buffer_dirty(leaf);  in insert_extent_data_ref()
1332 	struct extent_buffer *leaf;  in remove_extent_data_ref()  local
1336 	leaf = path->nodes[0];  in remove_extent_data_ref()
1337 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in remove_extent_data_ref()
1340 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
1342 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in remove_extent_data_ref()
1344 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
1346 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in remove_extent_data_ref()
1350 		ref0 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
1352 		num_refs = btrfs_ref_count_v0(leaf, ref0);  in remove_extent_data_ref()
1366 			btrfs_set_extent_data_ref_count(leaf, ref1, num_refs);  in remove_extent_data_ref()
1368 			btrfs_set_shared_data_ref_count(leaf, ref2, num_refs);  in remove_extent_data_ref()
1372 			ref0 = btrfs_item_ptr(leaf, path->slots[0],  in remove_extent_data_ref()
1374 			btrfs_set_ref_count_v0(leaf, ref0, num_refs);  in remove_extent_data_ref()
1377 		btrfs_mark_buffer_dirty(leaf);  in remove_extent_data_ref()
1386 	struct extent_buffer *leaf;  in extent_data_ref_count()  local
1391 	leaf = path->nodes[0];  in extent_data_ref_count()
1392 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in extent_data_ref_count()
1394 		if (btrfs_extent_inline_ref_type(leaf, iref) ==  in extent_data_ref_count()
1397 			num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
1400 			num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
1403 		ref1 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
1405 		num_refs = btrfs_extent_data_ref_count(leaf, ref1);  in extent_data_ref_count()
1407 		ref2 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
1409 		num_refs = btrfs_shared_data_ref_count(leaf, ref2);  in extent_data_ref_count()
1413 		ref0 = btrfs_item_ptr(leaf, path->slots[0],  in extent_data_ref_count()
1415 		num_refs = btrfs_ref_count_v0(leaf, ref0);  in extent_data_ref_count()
1540 	struct extent_buffer *leaf;  in lookup_inline_extent_backref()  local
1614 	leaf = path->nodes[0];  in lookup_inline_extent_backref()
1615 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in lookup_inline_extent_backref()
1628 		leaf = path->nodes[0];  in lookup_inline_extent_backref()
1629 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in lookup_inline_extent_backref()
1634 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in lookup_inline_extent_backref()
1635 	flags = btrfs_extent_flags(leaf, ei);  in lookup_inline_extent_backref()
1652 		type = btrfs_extent_inline_ref_type(leaf, iref);  in lookup_inline_extent_backref()
1663 			if (match_extent_data_ref(leaf, dref, root_objectid,  in lookup_inline_extent_backref()
1668 			if (hash_extent_data_ref_item(leaf, dref) <  in lookup_inline_extent_backref()
1673 			ref_offset = btrfs_extent_inline_ref_offset(leaf, iref);  in lookup_inline_extent_backref()
1731 	struct extent_buffer *leaf;  in setup_inline_extent_backref()  local
1740 	leaf = path->nodes[0];  in setup_inline_extent_backref()
1741 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1749 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in setup_inline_extent_backref()
1750 	refs = btrfs_extent_refs(leaf, ei);  in setup_inline_extent_backref()
1752 	btrfs_set_extent_refs(leaf, ei, refs);  in setup_inline_extent_backref()
1754 		__run_delayed_extent_op(extent_op, leaf, ei);  in setup_inline_extent_backref()
1757 	end = (unsigned long)ei + btrfs_item_size_nr(leaf, path->slots[0]);  in setup_inline_extent_backref()
1759 		memmove_extent_buffer(leaf, ptr + size, ptr,  in setup_inline_extent_backref()
1763 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in setup_inline_extent_backref()
1767 		btrfs_set_extent_data_ref_root(leaf, dref, root_objectid);  in setup_inline_extent_backref()
1768 		btrfs_set_extent_data_ref_objectid(leaf, dref, owner);  in setup_inline_extent_backref()
1769 		btrfs_set_extent_data_ref_offset(leaf, dref, offset);  in setup_inline_extent_backref()
1770 		btrfs_set_extent_data_ref_count(leaf, dref, refs_to_add);  in setup_inline_extent_backref()
1774 		btrfs_set_shared_data_ref_count(leaf, sref, refs_to_add);  in setup_inline_extent_backref()
1775 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1777 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in setup_inline_extent_backref()
1779 		btrfs_set_extent_inline_ref_offset(leaf, iref, root_objectid);  in setup_inline_extent_backref()
1781 	btrfs_mark_buffer_dirty(leaf);  in setup_inline_extent_backref()
1823 	struct extent_buffer *leaf;  in update_inline_extent_backref()  local
1834 	leaf = path->nodes[0];  in update_inline_extent_backref()
1835 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in update_inline_extent_backref()
1836 	refs = btrfs_extent_refs(leaf, ei);  in update_inline_extent_backref()
1839 	btrfs_set_extent_refs(leaf, ei, refs);  in update_inline_extent_backref()
1841 		__run_delayed_extent_op(extent_op, leaf, ei);  in update_inline_extent_backref()
1843 	type = btrfs_extent_inline_ref_type(leaf, iref);  in update_inline_extent_backref()
1847 		refs = btrfs_extent_data_ref_count(leaf, dref);  in update_inline_extent_backref()
1850 		refs = btrfs_shared_data_ref_count(leaf, sref);  in update_inline_extent_backref()
1861 			btrfs_set_extent_data_ref_count(leaf, dref, refs);  in update_inline_extent_backref()
1863 			btrfs_set_shared_data_ref_count(leaf, sref, refs);  in update_inline_extent_backref()
1867 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in update_inline_extent_backref()
1871 			memmove_extent_buffer(leaf, ptr, ptr + size,  in update_inline_extent_backref()
1876 	btrfs_mark_buffer_dirty(leaf);  in update_inline_extent_backref()
2106 	struct extent_buffer *leaf;  in __btrfs_inc_extent_ref()  local
2133 	leaf = path->nodes[0];  in __btrfs_inc_extent_ref()
2134 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in __btrfs_inc_extent_ref()
2135 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in __btrfs_inc_extent_ref()
2136 	refs = btrfs_extent_refs(leaf, item);  in __btrfs_inc_extent_ref()
2137 	btrfs_set_extent_refs(leaf, item, refs + refs_to_add);  in __btrfs_inc_extent_ref()
2139 		__run_delayed_extent_op(extent_op, leaf, item);  in __btrfs_inc_extent_ref()
2141 	btrfs_mark_buffer_dirty(leaf);  in __btrfs_inc_extent_ref()
2205 				    struct extent_buffer *leaf,  in __run_delayed_extent_op()  argument
2208 	u64 flags = btrfs_extent_flags(leaf, ei);  in __run_delayed_extent_op()
2211 		btrfs_set_extent_flags(leaf, ei, flags);  in __run_delayed_extent_op()
2218 		btrfs_set_tree_block_key(leaf, bi, &extent_op->key);  in __run_delayed_extent_op()
2230 	struct extent_buffer *leaf;  in run_delayed_extent_op()  local
2291 	leaf = path->nodes[0];  in run_delayed_extent_op()
2292 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in run_delayed_extent_op()
2301 		leaf = path->nodes[0];  in run_delayed_extent_op()
2302 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in run_delayed_extent_op()
2306 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in run_delayed_extent_op()
2307 	__run_delayed_extent_op(extent_op, leaf, ei);  in run_delayed_extent_op()
2309 	btrfs_mark_buffer_dirty(leaf);  in run_delayed_extent_op()
3071 	struct extent_buffer *leaf;  in check_committed_ref()  local
3093 	leaf = path->nodes[0];  in check_committed_ref()
3094 	btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in check_committed_ref()
3100 	item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in check_committed_ref()
3107 	ei = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);  in check_committed_ref()
3113 	if (btrfs_extent_generation(leaf, ei) <=  in check_committed_ref()
3118 	if (btrfs_extent_inline_ref_type(leaf, iref) !=  in check_committed_ref()
3123 	if (btrfs_extent_refs(leaf, ei) !=  in check_committed_ref()
3124 	    btrfs_extent_data_ref_count(leaf, ref) ||  in check_committed_ref()
3125 	    btrfs_extent_data_ref_root(leaf, ref) !=  in check_committed_ref()
3127 	    btrfs_extent_data_ref_objectid(leaf, ref) != objectid ||  in check_committed_ref()
3128 	    btrfs_extent_data_ref_offset(leaf, ref) != offset)  in check_committed_ref()
3266 	struct extent_buffer *leaf;  in write_one_cache_group()  local
3275 	leaf = path->nodes[0];  in write_one_cache_group()
3276 	bi = btrfs_item_ptr_offset(leaf, path->slots[0]);  in write_one_cache_group()
3277 	write_extent_buffer(leaf, &cache->item, bi, sizeof(cache->item));  in write_one_cache_group()
3278 	btrfs_mark_buffer_dirty(leaf);  in write_one_cache_group()
6424 	struct extent_buffer *leaf;  in __btrfs_free_extent()  local
6556 	leaf = path->nodes[0];  in __btrfs_free_extent()
6557 	item_size = btrfs_item_size_nr(leaf, extent_slot);  in __btrfs_free_extent()
6588 		leaf = path->nodes[0];  in __btrfs_free_extent()
6589 		item_size = btrfs_item_size_nr(leaf, extent_slot);  in __btrfs_free_extent()
6593 	ei = btrfs_item_ptr(leaf, extent_slot,  in __btrfs_free_extent()
6600 		WARN_ON(owner_objectid != btrfs_tree_block_level(leaf, bi));  in __btrfs_free_extent()
6603 	refs = btrfs_extent_refs(leaf, ei);  in __btrfs_free_extent()
6615 			__run_delayed_extent_op(extent_op, leaf, ei);  in __btrfs_free_extent()
6623 			btrfs_set_extent_refs(leaf, ei, refs);  in __btrfs_free_extent()
6624 			btrfs_mark_buffer_dirty(leaf);  in __btrfs_free_extent()
7628 	struct extent_buffer *leaf;  in alloc_reserved_file_extent()  local
7651 	leaf = path->nodes[0];  in alloc_reserved_file_extent()
7652 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_file_extent()
7654 	btrfs_set_extent_refs(leaf, extent_item, ref_mod);  in alloc_reserved_file_extent()
7655 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_file_extent()
7656 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_file_extent()
7660 	btrfs_set_extent_inline_ref_type(leaf, iref, type);  in alloc_reserved_file_extent()
7664 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in alloc_reserved_file_extent()
7665 		btrfs_set_shared_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
7669 		btrfs_set_extent_data_ref_root(leaf, ref, root_objectid);  in alloc_reserved_file_extent()
7670 		btrfs_set_extent_data_ref_objectid(leaf, ref, owner);  in alloc_reserved_file_extent()
7671 		btrfs_set_extent_data_ref_offset(leaf, ref, offset);  in alloc_reserved_file_extent()
7672 		btrfs_set_extent_data_ref_count(leaf, ref, ref_mod);  in alloc_reserved_file_extent()
7700 	struct extent_buffer *leaf;  in alloc_reserved_tree_block()  local
7726 	leaf = path->nodes[0];  in alloc_reserved_tree_block()
7727 	extent_item = btrfs_item_ptr(leaf, path->slots[0],  in alloc_reserved_tree_block()
7729 	btrfs_set_extent_refs(leaf, extent_item, 1);  in alloc_reserved_tree_block()
7730 	btrfs_set_extent_generation(leaf, extent_item, trans->transid);  in alloc_reserved_tree_block()
7731 	btrfs_set_extent_flags(leaf, extent_item,  in alloc_reserved_tree_block()
7739 		btrfs_set_tree_block_key(leaf, block_info, key);  in alloc_reserved_tree_block()
7740 		btrfs_set_tree_block_level(leaf, block_info, level);  in alloc_reserved_tree_block()
7746 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
7748 		btrfs_set_extent_inline_ref_offset(leaf, iref, parent);  in alloc_reserved_tree_block()
7750 		btrfs_set_extent_inline_ref_type(leaf, iref,  in alloc_reserved_tree_block()
7752 		btrfs_set_extent_inline_ref_offset(leaf, iref, root_objectid);  in alloc_reserved_tree_block()
7755 	btrfs_mark_buffer_dirty(leaf);  in alloc_reserved_tree_block()
9441 	struct extent_buffer *leaf;  in find_first_block_group()  local
9450 		leaf = path->nodes[0];  in find_first_block_group()
9451 		if (slot >= btrfs_header_nritems(leaf)) {  in find_first_block_group()
9459 		btrfs_item_key_to_cpu(leaf, &found_key, slot);  in find_first_block_group()
9686 	struct extent_buffer *leaf;  in btrfs_read_block_groups()  local
9713 		leaf = path->nodes[0];  in btrfs_read_block_groups()
9714 		btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);  in btrfs_read_block_groups()
9738 		read_extent_buffer(leaf, &cache->item,  in btrfs_read_block_groups()
9739 				   btrfs_item_ptr_offset(leaf, path->slots[0]),  in btrfs_read_block_groups()