Commit 73f73cc2 authored by Peter Zijlstra's avatar Peter Zijlstra
Browse files

sched,ivtv: Convert to sched_set_fifo*() 



Because SCHED_FIFO is a broken scheduler model (see previous patches)
take away the priority field, the kernel can't possibly make an
informed decision.

Effectively changes from 99 to 50.

Cc: awalls@md.metrocast.net
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Tested-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
parent 7b31e940

drivers/media/pci/ivtv/ivtv-driver.c

+1 −3
Original line number Diff line number Diff line
@@ -737,8 +737,6 @@ done: 
 */

static int ivtv_init_struct1(struct ivtv *itv)

{

	struct sched_param param = { .sched_priority = 99 };



	itv->base_addr = pci_resource_start(itv->pdev, 0);

	itv->enc_mbox.max_mbox = 2; /* the encoder has 3 mailboxes (0-2) */

	itv->dec_mbox.max_mbox = 1; /* the decoder has 2 mailboxes (0-1) */
@@ -758,7 +756,7 @@ static int ivtv_init_struct1(struct ivtv *itv) 
		return -1;

	}

	/* must use the FIFO scheduler as it is realtime sensitive */

	sched_setscheduler(itv->irq_worker_task, SCHED_FIFO, &param);

	sched_set_fifo(itv->irq_worker_task);



	kthread_init_work(&itv->irq_work, ivtv_irq_work_handler);

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