[PATCH RT] Revert "timer: delay waking softirqs from the jiffy tick"

From: Sebastian Andrzej Siewior
Date: Thu Jul 05 2018 - 11:54:46 EST


From: Anna-Maria Gleixner <anna-maria@xxxxxxxxxxxxx>

This patch was required as long as RT tasks where accounted to CFS
load but this was only a work around. Upstream Commit 17bdcf949d03
("sched: Drop all load weight manipulation for RT tasks") fixed the
accounting of RT tasks into CFS load.

Remove the patch and fix dependencies.

Signed-off-by: Anna-Maria Gleixner <anna-maria@xxxxxxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
kernel/time/timer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1666,13 +1666,13 @@ void update_process_times(int user_tick)

/* Note: this timer irq context must be accounted for as well. */
account_process_tick(p, user_tick);
- scheduler_tick();
run_local_timers();
rcu_check_callbacks(user_tick);
#ifdef CONFIG_IRQ_WORK
if (in_irq())
irq_work_tick();
#endif
+ scheduler_tick();
if (IS_ENABLED(CONFIG_POSIX_TIMERS))
run_posix_cpu_timers(p);
}