73 lines
1.9 KiB
Diff
73 lines
1.9 KiB
Diff
Subject: x86-no-perf-irq-work-rt.patch
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Wed, 13 Jul 2011 14:05:05 +0200
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/3.10/patches-3.10.10-rt7.tar.xz
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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arch/x86/kernel/irq_work.c | 2 ++
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kernel/irq_work.c | 5 ++++-
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kernel/timer.c | 6 +++++-
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3 files changed, 11 insertions(+), 2 deletions(-)
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--- a/arch/x86/kernel/irq_work.c
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+++ b/arch/x86/kernel/irq_work.c
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@@ -18,6 +18,7 @@ void smp_irq_work_interrupt(struct pt_re
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irq_exit();
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}
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+#ifndef CONFIG_PREEMPT_RT_FULL
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void arch_irq_work_raise(void)
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{
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#ifdef CONFIG_X86_LOCAL_APIC
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@@ -28,3 +29,4 @@ void arch_irq_work_raise(void)
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apic_wait_icr_idle();
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#endif
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}
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+#endif
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--- a/kernel/irq_work.c
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+++ b/kernel/irq_work.c
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@@ -119,8 +119,9 @@ static void __irq_work_run(void)
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if (llist_empty(this_list))
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return;
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+#ifndef CONFIG_PREEMPT_RT_FULL
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BUG_ON(!irqs_disabled());
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-
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+#endif
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llnode = llist_del_all(this_list);
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while (llnode != NULL) {
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work = llist_entry(llnode, struct irq_work, llnode);
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@@ -152,7 +153,9 @@ static void __irq_work_run(void)
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*/
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void irq_work_run(void)
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{
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+#ifndef CONFIG_PREEMPT_RT_FULL
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BUG_ON(!in_irq());
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+#endif
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__irq_work_run();
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}
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EXPORT_SYMBOL_GPL(irq_work_run);
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--- a/kernel/timer.c
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+++ b/kernel/timer.c
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@@ -1425,7 +1425,7 @@ void update_process_times(int user_tick)
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scheduler_tick();
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run_local_timers();
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rcu_check_callbacks(cpu, user_tick);
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-#ifdef CONFIG_IRQ_WORK
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+#if defined(CONFIG_IRQ_WORK) && !defined(CONFIG_PREEMPT_RT_FULL)
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if (in_irq())
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irq_work_run();
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#endif
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@@ -1439,6 +1439,10 @@ static void run_timer_softirq(struct sof
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{
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struct tvec_base *base = __this_cpu_read(tvec_bases);
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+#if defined(CONFIG_IRQ_WORK) && defined(CONFIG_PREEMPT_RT_FULL)
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+ irq_work_run();
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+#endif
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+
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hrtimer_run_pending();
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if (time_after_eq(jiffies, base->timer_jiffies))
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