LXR linux/include/linux/getcpu.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_GETCPU_H
   3#define _LINUX_GETCPU_H 1
   4
   5/* Cache for getcpu() to speed it up. Results might be a short time
   6   out of date, but will be faster.
   7
   8   User programs should not refer to the contents of this structure.
   9   I repeat they should not refer to it. If they do they will break
  10   in future kernels.
  11
  12   It is only a private cache for vgetcpu(). It will change in future kernels.
  13   The user program must store this information per thread (__thread)
  14   If you want 100% accurate information pass NULL instead. */
  15struct getcpu_cache {
  16        unsigned long blob[128 / sizeof(long)];
  17};
  18
  19#endif
  20