Subject: x86/entry: Use should_resched() in idtentry_exit_cond_resched() From: Sebastian Andrzej Siewior Date: Tue Jun 30 11:45:14 2020 +0200 From: Sebastian Andrzej Siewior 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 Signed-off-by: Thomas Gleixner --- kernel/entry/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- Index: linux-6.3.1-rt13/kernel/entry/common.c =================================================================== --- linux-6.3.1-rt13.orig/kernel/entry/common.c +++ linux-6.3.1-rt13/kernel/entry/common.c @@ -386,7 +386,7 @@ void raw_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(); } }