| Subject: genirq: Force interrupt thread on RT |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Sun, 03 Apr 2011 11:57:29 +0200 |
| |
| Force threaded_irqs and optimize the code (force_irqthreads) in regard |
| to this. |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| --- |
| include/linux/interrupt.h | 6 +++++- |
| kernel/irq/manage.c | 2 ++ |
| 2 files changed, 7 insertions(+), 1 deletion(-) |
| |
| --- a/include/linux/interrupt.h |
| +++ b/include/linux/interrupt.h |
| @@ -429,9 +429,13 @@ extern int irq_set_irqchip_state(unsigne |
| bool state); |
| |
| #ifdef CONFIG_IRQ_FORCED_THREADING |
| +# ifndef CONFIG_PREEMPT_RT_BASE |
| extern bool force_irqthreads; |
| +# else |
| +# define force_irqthreads (true) |
| +# endif |
| #else |
| -#define force_irqthreads (0) |
| +#define force_irqthreads (false) |
| #endif |
| |
| #ifndef __ARCH_SET_SOFTIRQ_PENDING |
| --- a/kernel/irq/manage.c |
| +++ b/kernel/irq/manage.c |
| @@ -24,6 +24,7 @@ |
| #include "internals.h" |
| |
| #ifdef CONFIG_IRQ_FORCED_THREADING |
| +# ifndef CONFIG_PREEMPT_RT_BASE |
| __read_mostly bool force_irqthreads; |
| EXPORT_SYMBOL_GPL(force_irqthreads); |
| |
| @@ -33,6 +34,7 @@ static int __init setup_forced_irqthread |
| return 0; |
| } |
| early_param("threadirqs", setup_forced_irqthreads); |
| +# endif |
| #endif |
| |
| static void __synchronize_hardirq(struct irq_desc *desc) |
