- /*
- * We need to check for destruction while holding pool->lock, as
- * otherwise destruction could see 0 isolated pages, and
- * proceed.
- */
- if (unlikely(pool->destroying)) {
- spin_unlock(&pool->lock);
- /*
- * If this page isn't stale, somebody else holds a
- * reference to it. Let't drop our refcount so that they
- * can call the release logic.
- */
- if (unlikely(kref_put(&zhdr->refcount,
- release_z3fold_page_locked))) {
- /*
- * If we get here we have kref problems, so we
- * should freak out.
- */
- WARN(1, "Z3fold is experiencing kref problems\n");
- return false;
- }
- z3fold_page_unlock(zhdr);
- return false;
- }
-
-
- z3fold_inc_isolated(pool);