diff options
Diffstat (limited to 'include/linux/hardirq.h')
| -rw-r--r-- | include/linux/hardirq.h | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 897f723..181006c 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -72,6 +72,14 @@ #define in_softirq() (softirq_count()) #define in_interrupt() (irq_count()) +#if defined(CONFIG_PREEMPT) +# define PREEMPT_INATOMIC_BASE kernel_locked() +# define PREEMPT_CHECK_OFFSET 1 +#else +# define PREEMPT_INATOMIC_BASE 0 +# define PREEMPT_CHECK_OFFSET 0 +#endif + /* * Are we running in atomic context? WARNING: this macro cannot * always detect atomic context; in particular, it cannot know about @@ -79,17 +87,11 @@ * used in the general case to determine whether sleeping is possible. * Do not use in_atomic() in driver code. */ -#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0) - -#ifdef CONFIG_PREEMPT -# define PREEMPT_CHECK_OFFSET 1 -#else -# define PREEMPT_CHECK_OFFSET 0 -#endif +#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_INATOMIC_BASE) /* * Check whether we were atomic before we did preempt_disable(): - * (used by the scheduler) + * (used by the scheduler, *after* releasing the kernel lock) */ #define in_atomic_preempt_off() \ ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_CHECK_OFFSET) |