The ivtv driver creates a FIFO-99 thread by default, reduce this to FIFO-1.
FIFO-99 is the very highest priority available to SCHED_FIFO and it not a suitable default; it would indicate the ivtv work is the most important work on the machine. FIFO-1 gets it above all OTHER tasks, which seems high enough lacking better justification. Cc: Andy Walls <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Thomas Gleixner <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> --- drivers/media/pci/ivtv/ivtv-driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/pci/ivtv/ivtv-driver.c +++ b/drivers/media/pci/ivtv/ivtv-driver.c @@ -738,7 +738,7 @@ static void ivtv_process_options(struct */ static int ivtv_init_struct1(struct ivtv *itv) { - struct sched_param param = { .sched_priority = 99 }; + struct sched_param param = { .sched_priority = 1 }; itv->base_addr = pci_resource_start(itv->pdev, 0); itv->enc_mbox.max_mbox = 2; /* the encoder has 3 mailboxes (0-2) */
