change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/kernel/time/hrtimer.c
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..
@@ -2024,6 +2024,7 @@
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 	if (!timespec64_valid(&tu))
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 		return -EINVAL;
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+	current->restart_block.fn = do_no_restart_syscall;
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 	current->restart_block.nanosleep.type = rmtp ? TT_NATIVE : TT_NONE;
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 	current->restart_block.nanosleep.rmtp = rmtp;
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 	return hrtimer_nanosleep(timespec64_to_ktime(tu), HRTIMER_MODE_REL,
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@@ -2045,41 +2046,12 @@
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 	if (!timespec64_valid(&tu))
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 		return -EINVAL;
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+	current->restart_block.fn = do_no_restart_syscall;
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 	current->restart_block.nanosleep.type = rmtp ? TT_COMPAT : TT_NONE;
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 	current->restart_block.nanosleep.compat_rmtp = rmtp;
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 	return hrtimer_nanosleep(timespec64_to_ktime(tu), HRTIMER_MODE_REL,
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 				 CLOCK_MONOTONIC);
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 }
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-#endif
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-
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-#ifdef CONFIG_PREEMPT_RT
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-/*
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- * Sleep for 1 ms in hope whoever holds what we want will let it go.
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- */
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-void cpu_chill(void)
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-{
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-	unsigned int freeze_flag = current->flags & PF_NOFREEZE;
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-	struct task_struct *self = current;
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-	ktime_t chill_time;
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-
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-	raw_spin_lock_irq(&self->pi_lock);
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-	self->saved_state = self->state;
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-	__set_current_state_no_track(TASK_UNINTERRUPTIBLE);
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-	raw_spin_unlock_irq(&self->pi_lock);
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-
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-	chill_time = ktime_set(0, NSEC_PER_MSEC);
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-
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-	current->flags |= PF_NOFREEZE;
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-	schedule_hrtimeout(&chill_time, HRTIMER_MODE_REL_HARD);
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-	if (!freeze_flag)
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-		current->flags &= ~PF_NOFREEZE;
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-
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-	raw_spin_lock_irq(&self->pi_lock);
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-	__set_current_state_no_track(self->saved_state);
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-	self->saved_state = TASK_RUNNING;
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-	raw_spin_unlock_irq(&self->pi_lock);
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-}
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-EXPORT_SYMBOL(cpu_chill);
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 #endif
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 /*