diff options
| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-30 11:37:55 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-30 11:37:55 -0400 |
| commit | 369aa8395a5dcc89230f1de5459124c4b0db9fca (patch) | |
| tree | d95edf4c52e343e2080427ad153da051ea52eee6 /include/linux | |
| parent | bf603625660b1742004bf86432ce3c210d14d4fd (diff) | |
| parent | c84ef5305930d19bdd6cd576b3a3a73786a82e57 (diff) | |
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
[PATCH] Use early clobber in semaphores
[PATCH] Define vsyscall cache as blob to make clearer that user space shouldn't use it
[PATCH] Re-positioning the bss segment
[PATCH] Use ARRAY_SIZE in setup.c
[PATCH] i386: replace intermediate array-size definitions with ARRAY_SIZE()
[PATCH] x86: Clean up x86 NMI sysctls
[PATCH] Refactor some duplicated code in mpparse.c
[PATCH] Document iommu=panic
[PATCH] Fix broken indentation in iommu_setup
[PATCH] Allow disabling DAC using command line options
[PATCH] Add proper sparse __user casts to __copy_to_user_inatomic
[PATCH] i386: Update defconfig
[PATCH] Update defconfig
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| 5 | out of date, but will be faster. | 5 | out of date, but will be faster.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 |
