diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/getcpu.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/linux/getcpu.h b/include/linux/getcpu.h index 031ed3780e45..c7372d7a97be 100644 --- a/include/linux/getcpu.h +++ b/include/linux/getcpu.h | |||
| @@ -1,16 +1,18 @@ | |||
| 1 | #ifndef _LINUX_GETCPU_H | 1 | #ifndef _LINUX_GETCPU_H |
| 2 | #define _LINUX_GETCPU_H 1 | 2 | #define _LINUX_GETCPU_H 1 |
| 3 | 3 | ||
| 4 | /* Cache for getcpu() to speed it up. Results might be upto a jiffie | 4 | /* Cache for getcpu() to speed it up. Results might be a short time |
| 5 | out of date, but will be faster. | 5 | out of date, but will be faster. |
| 6 | |||
| 6 | User programs should not refer to the contents of this structure. | 7 | User programs should not refer to the contents of this structure. |
| 7 | It is only a cache for vgetcpu(). It might change in future kernels. | 8 | I repeat they should not refer to it. If they do they will break |
| 9 | in future kernels. | ||
| 10 | |||
| 11 | It is only a private cache for vgetcpu(). It will change in future kernels. | ||
| 8 | The user program must store this information per thread (__thread) | 12 | The user program must store this information per thread (__thread) |
| 9 | If you want 100% accurate information pass NULL instead. */ | 13 | If you want 100% accurate information pass NULL instead. */ |
| 10 | struct getcpu_cache { | 14 | struct getcpu_cache { |
| 11 | unsigned long t0; | 15 | unsigned long blob[128 / sizeof(long)]; |
| 12 | unsigned long t1; | ||
| 13 | unsigned long res[4]; | ||
| 14 | }; | 16 | }; |
| 15 | 17 | ||
| 16 | #endif | 18 | #endif |
