arch/x86/include/uapi/asm/sembuf.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _ASM_X86_SEMBUF_H
   3 #define _ASM_X86_SEMBUF_H
   4
   5 #include <asm/ipcbuf.h>
   6
   7 /*
   8  * The semid64_ds structure for x86 architecture.
   9  * Note extra padding because this structure is passed back and forth
  10  * between kernel and user space.
  11  *
  12  * Pad space is left for:
  13  * - 2 miscellaneous 32-bit values
  14  *
  15  * x86_64 and x32 incorrectly added padding here, so the structures
  16  * are still incompatible with the padding on x86.
  17  */
  18 struct semid64_ds {
  19         struct ipc64_perm sem_perm;     /* permissions .. see ipc.h */
  20 #ifdef __i386__
  21         unsigned long   sem_otime;      /* last semop time */
  22         unsigned long   sem_otime_high;
  23         unsigned long   sem_ctime;      /* last change time */
  24         unsigned long   sem_ctime_high;
  25 #else
  26         __kernel_long_t sem_otime;      /* last semop time */
  27         __kernel_ulong_t __unused1;
  28         __kernel_long_t sem_ctime;      /* last change time */
  29         __kernel_ulong_t __unused2;
  30 #endif
  31         __kernel_ulong_t sem_nsems;     /* no. of semaphores in array */
  32         __kernel_ulong_t __unused3;
  33         __kernel_ulong_t __unused4;
  34 };
  35
  36 #endif /* _ASM_X86_SEMBUF_H */