forked from ~ljy/RK356X_SDK_RELEASE

blame | history | patch | commit | commitdiff
hc
2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/kernel/time/hrtimer.c
....@@ -2052,36 +2052,6 @@
20522052 }
20532053 #endif
20542054 
2055
-#ifdef CONFIG_PREEMPT_RT
2056
-/*
2057
- * Sleep for 1 ms in hope whoever holds what we want will let it go.
2058
- */
2059
-void cpu_chill(void)
2060
-{
2061
-	unsigned int freeze_flag = current->flags & PF_NOFREEZE;
2062
-	struct task_struct *self = current;
2063
-	ktime_t chill_time;
2064
-
2065
-	raw_spin_lock_irq(&self->pi_lock);
2066
-	self->saved_state = self->state;
2067
-	__set_current_state_no_track(TASK_UNINTERRUPTIBLE);
2068
-	raw_spin_unlock_irq(&self->pi_lock);
2069
-
2070
-	chill_time = ktime_set(0, NSEC_PER_MSEC);
2071
-
2072
-	current->flags |= PF_NOFREEZE;
2073
-	schedule_hrtimeout(&chill_time, HRTIMER_MODE_REL_HARD);
2074
-	if (!freeze_flag)
2075
-		current->flags &= ~PF_NOFREEZE;
2076
-
2077
-	raw_spin_lock_irq(&self->pi_lock);
2078
-	__set_current_state_no_track(self->saved_state);
2079
-	self->saved_state = TASK_RUNNING;
2080
-	raw_spin_unlock_irq(&self->pi_lock);
2081
-}
2082
-EXPORT_SYMBOL(cpu_chill);
2083
-#endif
2084
-
20852055 /*
20862056  * Functions related to boot-time initialization:
20872057  */