263 	struct extent_status *es1 = NULL;  in __es_find_extent_range()  local
273 	es1 = READ_ONCE(tree->cache_es);  in __es_find_extent_range()
274 	if (es1 && in_range(lblk, es1->es_lblk, es1->es_len)) {  in __es_find_extent_range()
276 			 lblk, es1->es_lblk, es1->es_len,  in __es_find_extent_range()
277 			 ext4_es_pblock(es1), ext4_es_status(es1));  in __es_find_extent_range()
281 	es1 = __es_tree_search(&tree->root, lblk);  in __es_find_extent_range()
284 	if (es1 && !matching_fn(es1)) {  in __es_find_extent_range()
285 		while ((node = rb_next(&es1->rb_node)) != NULL) {  in __es_find_extent_range()
286 			es1 = rb_entry(node, struct extent_status, rb_node);  in __es_find_extent_range()
287 			if (es1->es_lblk > end) {  in __es_find_extent_range()
288 				es1 = NULL;  in __es_find_extent_range()
291 			if (matching_fn(es1))  in __es_find_extent_range()
296 	if (es1 && matching_fn(es1)) {  in __es_find_extent_range()
297 		WRITE_ONCE(tree->cache_es, es1);  in __es_find_extent_range()
298 		es->es_lblk = es1->es_lblk;  in __es_find_extent_range()
299 		es->es_len = es1->es_len;  in __es_find_extent_range()
300 		es->es_pblk = es1->es_pblk;  in __es_find_extent_range()
536 static int ext4_es_can_be_merged(struct extent_status *es1,  in ext4_es_can_be_merged()  argument
539 	if (ext4_es_type(es1) != ext4_es_type(es2))  in ext4_es_can_be_merged()
542 	if (((__u64) es1->es_len) + es2->es_len > EXT_MAX_BLOCKS) {  in ext4_es_can_be_merged()
546 			es1->es_len, es2->es_len, EXT_MAX_BLOCKS);  in ext4_es_can_be_merged()
551 	if (((__u64) es1->es_lblk) + es1->es_len != es2->es_lblk)  in ext4_es_can_be_merged()
554 	if ((ext4_es_is_written(es1) || ext4_es_is_unwritten(es1)) &&  in ext4_es_can_be_merged()
555 	    (ext4_es_pblock(es1) + es1->es_len == ext4_es_pblock(es2)))  in ext4_es_can_be_merged()
558 	if (ext4_es_is_hole(es1))  in ext4_es_can_be_merged()
562 	if (ext4_es_is_delayed(es1))  in ext4_es_can_be_merged()
572 	struct extent_status *es1;  in ext4_es_try_to_merge_left()  local
579 	es1 = rb_entry(node, struct extent_status, rb_node);  in ext4_es_try_to_merge_left()
580 	if (ext4_es_can_be_merged(es1, es)) {  in ext4_es_try_to_merge_left()
581 		es1->es_len += es->es_len;  in ext4_es_try_to_merge_left()
583 			ext4_es_set_referenced(es1);  in ext4_es_try_to_merge_left()
586 		es = es1;  in ext4_es_try_to_merge_left()
596 	struct extent_status *es1;  in ext4_es_try_to_merge_right()  local
603 	es1 = rb_entry(node, struct extent_status, rb_node);  in ext4_es_try_to_merge_right()
604 	if (ext4_es_can_be_merged(es, es1)) {  in ext4_es_try_to_merge_right()
605 		es->es_len += es1->es_len;  in ext4_es_try_to_merge_right()
606 		if (ext4_es_is_referenced(es1))  in ext4_es_try_to_merge_right()
609 		ext4_es_free_extent(inode, es1);  in ext4_es_try_to_merge_right()
858 	struct extent_status *es1 = NULL;  in ext4_es_insert_extent()  local
887 	if (err1 && !es1)  in ext4_es_insert_extent()
888 		es1 = __es_alloc_extent(true);  in ext4_es_insert_extent()
895 	err1 = __es_remove_extent(inode, lblk, end, &resv_used, es1);  in ext4_es_insert_extent()
899 	if (es1) {  in ext4_es_insert_extent()
900 		if (!es1->es_len)  in ext4_es_insert_extent()
901 			__es_free_extent(es1);  in ext4_es_insert_extent()
902 		es1 = NULL;  in ext4_es_insert_extent()
1004 	struct extent_status *es1 = NULL;  in ext4_es_lookup_extent()  local
1019 	es1 = READ_ONCE(tree->cache_es);  in ext4_es_lookup_extent()
1020 	if (es1 && in_range(lblk, es1->es_lblk, es1->es_len)) {  in ext4_es_lookup_extent()
1022 			 lblk, es1->es_lblk, es1->es_len);  in ext4_es_lookup_extent()
1029 		es1 = rb_entry(node, struct extent_status, rb_node);  in ext4_es_lookup_extent()
1030 		if (lblk < es1->es_lblk)  in ext4_es_lookup_extent()
1032 		else if (lblk > ext4_es_end(es1))  in ext4_es_lookup_extent()
1043 		BUG_ON(!es1);  in ext4_es_lookup_extent()
1044 		es->es_lblk = es1->es_lblk;  in ext4_es_lookup_extent()
1045 		es->es_len = es1->es_len;  in ext4_es_lookup_extent()
1046 		es->es_pblk = es1->es_pblk;  in ext4_es_lookup_extent()
1047 		if (!ext4_es_is_referenced(es1))  in ext4_es_lookup_extent()
1048 			ext4_es_set_referenced(es1);  in ext4_es_lookup_extent()
1051 			node = rb_next(&es1->rb_node);  in ext4_es_lookup_extent()
1053 				es1 = rb_entry(node, struct extent_status,  in ext4_es_lookup_extent()
1055 				*next_lblk = es1->es_lblk;  in ext4_es_lookup_extent()
2094 	struct extent_status *es1 = NULL;  in ext4_es_insert_delayed_extent()  local
2119 	if (err1 && !es1)  in ext4_es_insert_delayed_extent()
2120 		es1 = __es_alloc_extent(true);  in ext4_es_insert_delayed_extent()
2131 	err1 = __es_remove_extent(inode, lblk, end, NULL, es1);  in ext4_es_insert_delayed_extent()
2135 	if (es1) {  in ext4_es_insert_delayed_extent()
2136 		if (!es1->es_len)  in ext4_es_insert_delayed_extent()
2137 			__es_free_extent(es1);  in ext4_es_insert_delayed_extent()
2138 		es1 = NULL;  in ext4_es_insert_delayed_extent()