From 94beddacb53cddb78baab6b4597195bb766d70b0 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 21 Apr 2020 12:09:13 +0200 Subject: [PATCH] sched,watchdog: 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 prio from 99 to 50. Cc: wim@linux-watchdog.org Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Ingo Molnar --- drivers/watchdog/watchdog_dev.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index 7e4cd34a8c20..b9dc2c352151 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -1144,14 +1144,13 @@ void watchdog_dev_unregister(struct watchdog_device *wdd) int __init watchdog_dev_init(void) { int err; - struct sched_param param = {.sched_priority = MAX_RT_PRIO - 1,}; watchdog_kworker = kthread_create_worker(0, "watchdogd"); if (IS_ERR(watchdog_kworker)) { pr_err("Failed to create watchdog kworker\n"); return PTR_ERR(watchdog_kworker); } - sched_setscheduler(watchdog_kworker->task, SCHED_FIFO, ¶m); + sched_set_fifo(watchdog_kworker->task); err = class_register(&watchdog_class); if (err < 0) {