https://github.com/torvalds/linux
Revision 53d5fc89d66a778577295020dc57bb3ccec84354 authored by Linus Torvalds on 01 October 2021, 21:45:23 UTC, committed by Linus Torvalds on 01 October 2021, 21:45:23 UTC
Pull s390 fix from Vasily Gorbik:
 "One fix for 5.15-rc4: Avoid CIO excessive path-verification requests,
  which might cause unwanted delays"

* tag 's390-5.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cio: avoid excessive path-verification requests
2 parent s f5b667d + 172da89
Raw File
Tip revision: 53d5fc89d66a778577295020dc57bb3ccec84354 authored by Linus Torvalds on 01 October 2021, 21:45:23 UTC
Merge tag 's390-5.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Tip revision: 53d5fc8
getcpu.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_GETCPU_H
#define _LINUX_GETCPU_H 1

/* Cache for getcpu() to speed it up. Results might be a short time
   out of date, but will be faster.

   User programs should not refer to the contents of this structure.
   I repeat they should not refer to it. If they do they will break
   in future kernels.

   It is only a private cache for vgetcpu(). It will change in future kernels.
   The user program must store this information per thread (__thread)
   If you want 100% accurate information pass NULL instead. */
struct getcpu_cache {
	unsigned long blob[128 / sizeof(long)];
};

#endif
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