Merge "fs/mbcache: fix mb_cache_lru_list corruption"

		 * then reacquire the lock in the proper order.

		 */

		spin_lock(&mb_cache_spinlock);

		/*

		 * Evaluate the conditions under global lock mb_cache_spinlock,

		 * to check if mb_cache_entry_get() is running now

		 * and has already deleted the entry from mb_cache_lru_list

		 * and incremented ce->e_refcnt to prevent further additions

		 * to mb_cache_lru_list.

		 */

		if (!(ce->e_used || ce->e_queued ||

				atomic_read(&ce->e_refcnt))) {

			if (list_empty(&ce->e_lru_list))

			list_add_tail(&ce->e_lru_list, &mb_cache_lru_list);

				list_add_tail(&ce->e_lru_list,

						&mb_cache_lru_list);

		}

		spin_unlock(&mb_cache_spinlock);

	}

	__spin_unlock_mb_cache_entry(ce);