Merge "staging: android: ion: Make ion defer free more aggressive"

	  We generally don't want to enable this config as it breaks the

	  cache maintenance model.

	  If you're not sure say N here.

config ION_DEFER_FREE_NO_SCHED_IDLE

	bool "Increases the priority of ION defer free thead"

	depends on ION

	help

	  Choose this option to remove the SCHED_IDLE flag in case of defer free

	  thereby increasing the priority of defer free thread.

	  if you're not sure say Y here.

int ion_heap_init_deferred_free(struct ion_heap *heap)

{

#ifndef CONFIG_ION_DEFER_FREE_NO_SCHED_IDLE

	struct sched_param param = { .sched_priority = 0 };

#endif

	INIT_LIST_HEAD(&heap->free_list);

	init_waitqueue_head(&heap->waitqueue);

	heap->task = kthread_run(ion_heap_deferred_free, heap,

		       __func__);

		return PTR_ERR_OR_ZERO(heap->task);

	}

#ifndef CONFIG_ION_DEFER_FREE_NO_SCHED_IDLE

	sched_setscheduler(heap->task, SCHED_IDLE, &param);

#endif

	return 0;

}