linux/include/linux/getcpu.h
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   1#ifndef _LINUX_GETCPU_H
   2#define _LINUX_GETCPU_H 1
   3
   4/* Cache for getcpu() to speed it up. Results might be a short time
   5   out of date, but will be faster.
   6
   7   User programs should not refer to the contents of this structure.
   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.
  12   The user program must store this information per thread (__thread)
  13   If you want 100% accurate information pass NULL instead. */
  14struct getcpu_cache {
  15        unsigned long blob[128 / sizeof(long)];
  16};
  17
  18#endif
  19
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