| From d7b3946febd01126be4e6dab82a48ed54edf7448 Mon Sep 17 00:00:00 2001 |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Tue, 21 Jul 2009 22:34:14 +0200 |
| Subject: [PATCH] rt: local_irq_* variants depending on RT/!RT |
| |
| commit c7f86f08e17883cbbbfbeffca9dae499750b59cb in tip. |
| |
| Add local_irq_*_(no)rt variant which are mainly used to break |
| interrupt disabled sections on PREEMPT_RT. |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| |
| diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h |
| index 2d574fb..7b43e10 100644 |
| --- a/include/linux/interrupt.h |
| +++ b/include/linux/interrupt.h |
| @@ -179,7 +179,7 @@ extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id); |
| #ifdef CONFIG_LOCKDEP |
| # define local_irq_enable_in_hardirq() do { } while (0) |
| #else |
| -# define local_irq_enable_in_hardirq() local_irq_enable() |
| +# define local_irq_enable_in_hardirq() local_irq_enable_nort() |
| #endif |
| |
| extern void disable_irq_nosync(unsigned int irq); |
| @@ -612,4 +612,19 @@ extern int arch_probe_nr_irqs(void); |
| extern int arch_early_irq_init(void); |
| extern int arch_init_chip_data(struct irq_desc *desc, int node); |
| |
| +/* |
| + * local_irq* variants depending on RT/!RT |
| + */ |
| +#ifdef CONFIG_PREEMPT_RT |
| +# define local_irq_disable_nort() do { } while (0) |
| +# define local_irq_enable_nort() do { } while (0) |
| +# define local_irq_save_nort(flags) do { local_save_flags(flags); } while (0) |
| +# define local_irq_restore_nort(flags) do { (void)(flags); } while (0) |
| +#else |
| +# define local_irq_disable_nort() local_irq_disable() |
| +# define local_irq_enable_nort() local_irq_enable() |
| +# define local_irq_save_nort(flags) local_irq_save(flags) |
| +# define local_irq_restore_nort(flags) local_irq_restore(flags) |
| +#endif |
| + |
| #endif |
| -- |
| 1.7.1.1 |
| |
