sembuf_x86.h 1.0 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef _ASM_X86_SEMBUF_H
  3. #define _ASM_X86_SEMBUF_H
  4. #include <asm/ipcbuf.h>
  5. /*
  6. * The semid64_ds structure for x86 architecture.
  7. * Note extra padding because this structure is passed back and forth
  8. * between kernel and user space.
  9. *
  10. * Pad space is left for:
  11. * - 2 miscellaneous 32-bit values
  12. *
  13. * x86_64 and x32 incorrectly added padding here, so the structures
  14. * are still incompatible with the padding on x86.
  15. */
  16. struct semid64_ds {
  17. struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
  18. #ifdef __i386__
  19. unsigned long sem_otime; /* last semop time */
  20. unsigned long sem_otime_high;
  21. unsigned long sem_ctime; /* last change time */
  22. unsigned long sem_ctime_high;
  23. #else
  24. __kernel_long_t sem_otime; /* last semop time */
  25. __kernel_ulong_t __unused1;
  26. __kernel_long_t sem_ctime; /* last change time */
  27. __kernel_ulong_t __unused2;
  28. #endif
  29. __kernel_ulong_t sem_nsems; /* no. of semaphores in array */
  30. __kernel_ulong_t __unused3;
  31. __kernel_ulong_t __unused4;
  32. };
  33. #endif /* _ASM_X86_SEMBUF_H */