[tip: sched/fifo] sched,ivtv: Convert to sched_set_fifo*()

[tip-bot2 for Peter Zijlstra]

The following commit has been merged into the sched/fifo branch of tip:

Commit-ID:     73f73cc2432acf2e1c8a1ce0720eaced7b5dda16
Gitweb:        
https://git.kernel.org/tip/73f73cc2432acf2e1c8a1ce0720eaced7b5dda16
Author:        Peter Zijlstra <pet...@infradead.org>
AuthorDate:    Tue, 21 Apr 2020 12:09:13 +02:00
Committer:     Peter Zijlstra <pet...@infradead.org>
CommitterDate: Mon, 15 Jun 2020 14:10:22 +02:00

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: awa...@md.metrocast.net
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Reviewed-by: Ingo Molnar <mi...@kernel.org>
Acked-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Tested-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
---
 drivers/media/pci/ivtv/ivtv-driver.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/pci/ivtv/ivtv-driver.c 
b/drivers/media/pci/ivtv/ivtv-driver.c
index b1dde1b..28acb14 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -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);