| Subject: cpu-rt-variants.patch |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Fri, 17 Jun 2011 15:42:38 +0200 |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| --- |
| include/linux/smp.h | 8 ++++++++ |
| 1 file changed, 8 insertions(+) |
| |
| Index: linux-stable/include/linux/smp.h |
| =================================================================== |
| --- linux-stable.orig/include/linux/smp.h |
| +++ linux-stable/include/linux/smp.h |
| @@ -218,6 +218,14 @@ static inline void kick_all_cpus_sync(vo |
| #define get_cpu() ({ preempt_disable(); smp_processor_id(); }) |
| #define put_cpu() preempt_enable() |
| |
| +#ifndef CONFIG_PREEMPT_RT_FULL |
| +# define get_cpu_light() get_cpu() |
| +# define put_cpu_light() put_cpu() |
| +#else |
| +# define get_cpu_light() ({ migrate_disable(); smp_processor_id(); }) |
| +# define put_cpu_light() migrate_enable() |
| +#endif |
| + |
| /* |
| * Callback to arch code if there's nosmp or maxcpus=0 on the |
| * boot command line: |
