Differential D44173 Diff 136759 sys/contrib/openzfs/module/zfs/arc.c

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* wakeup() signals after they are destroyed.		* wakeup() signals after they are destroyed.
*/		*/
zthr_destroy(arc_evict_zthr);		zthr_destroy(arc_evict_zthr);
zthr_destroy(arc_reap_zthr);		zthr_destroy(arc_reap_zthr);

ASSERT0(arc_loaned_bytes);		ASSERT0(arc_loaned_bytes);
}		}

		boolean_t
		arc_is_waiting_evict(void)
		{
		boolean_t is_empty;

		mutex_enter(&arc_evict_lock);
		is_empty = list_is_empty(&arc_evict_waiters);
		mutex_exit(&arc_evict_lock);

		return (!is_empty);
		}

/*		/*
* Level 2 ARC		* Level 2 ARC
*		*
* The level 2 ARC (L2ARC) is a cache layer in-between main memory and disk.		* The level 2 ARC (L2ARC) is a cache layer in-between main memory and disk.
* It uses dedicated storage devices to hold cached data, which are populated		* It uses dedicated storage devices to hold cached data, which are populated
* using large infrequent writes. The main role of this cache is to boost		* using large infrequent writes. The main role of this cache is to boost
* the performance of random read workloads. The intended L2ARC devices		* the performance of random read workloads. The intended L2ARC devices
* include short-stroked disks, solid state disks, and other media with		* include short-stroked disks, solid state disks, and other media with
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