diff options
| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-11 13:15:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-11 13:15:55 -0700 |
| commit | 989aa44a5f215427085ccfe65c1e378e3399c9eb (patch) | |
| tree | cd1993f2187e17e0e8d46d4fe12848e7be21fe96 /include/linux | |
| parent | Merge branch 'core-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip (diff) | |
| parent | debug lockups: Improve lockup detection, fix generic arch fallback (diff) | |
Merge branch 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
debug lockups: Improve lockup detection, fix generic arch fallback
debug lockups: Improve lockup detection
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/nmi.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/nmi.h b/include/linux/nmi.h index 29af2d5df097..b752e807adde 100644 --- a/include/linux/nmi.h +++ b/include/linux/nmi.h @@ -28,8 +28,23 @@ static inline void acpi_nmi_disable(void) { } static inline void acpi_nmi_enable(void) { } #endif -#ifndef trigger_all_cpu_backtrace -#define trigger_all_cpu_backtrace() do { } while (0) +/* + * Create trigger_all_cpu_backtrace() out of the arch-provided + * base function. Return whether such support was available, + * to allow calling code to fall back to some other mechanism: + */ +#ifdef arch_trigger_all_cpu_backtrace +static inline bool trigger_all_cpu_backtrace(void) +{ + arch_trigger_all_cpu_backtrace(); + + return true; +} +#else +static inline bool trigger_all_cpu_backtrace(void) +{ + return false; +} #endif #endif |