154 	rh_block_t *before;  in attach_free_block()  local
168 	before = NULL;  in attach_free_block()
182 			before = blk;  in attach_free_block()
188 		if (before != NULL && after != NULL)  in attach_free_block()
193 	if (before && s != (before->start + before->size))  in attach_free_block()
194 		before = NULL;  in attach_free_block()
200 	if (before == NULL && after == NULL) {  in attach_free_block()
214 	if (before != NULL && after == NULL) {  in attach_free_block()
215 		before->size += size;  in attach_free_block()
220 	if (before == NULL && after != NULL) {  in attach_free_block()
227 	before->size += size + after->size;  in attach_free_block()