From 0ee255a61e97342bfa36b05663125af09db50ce0 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Tue, 30 Jun 2020 11:45:14 +0200 Subject: [PATCH 134/166] 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 Signed-off-by: Thomas Gleixner --- kernel/entry/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-5.15.32-rt39/kernel/entry/common.c =================================================================== --- linux-5.15.32-rt39.orig/kernel/entry/common.c +++ linux-5.15.32-rt39/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(); } }