From b40da60f39e0aee4ffd93c1a656735b45633cf4c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 30 Jun 2020 11:45:14 +0200
Subject: [PATCH 136/158] x86/entry: Use should_resched() in
 idtentry_exit_cond_resched()

The TIF_NEED_RESCHED bit is inlined on x86 into the preemption counter.
By using should_resched(0) instead of need_resched() the same check can
be performed which uses the same variable as 'preempt_count()` which was
issued before.

Use should_resched(0) instead need_resched().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/entry/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-5.15.19-rt29/kernel/entry/common.c
===================================================================
--- linux-5.15.19-rt29.orig/kernel/entry/common.c
+++ linux-5.15.19-rt29/kernel/entry/common.c
@@ -395,7 +395,7 @@ void irqentry_exit_cond_resched(void)
 		rcu_irq_exit_check_preempt();
 		if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
 			WARN_ON_ONCE(!on_thread_stack());
-		if (need_resched())
+		if (should_resched(0))
 			preempt_schedule_irq();
 	}
 }