arch/s390/include/asm/shmbuf.h

   1 #ifndef _S390_SHMBUF_H
   2 #define _S390_SHMBUF_H
   3
   4 /*
   5  * The shmid64_ds structure for S/390 architecture.
   6  * Note extra padding because this structure is passed back and forth
   7  * between kernel and user space.
   8  *
   9  * Pad space is left for:
  10  * - 64-bit time_t to solve y2038 problem (for !__s390x__)
  11  * - 2 miscellaneous 32-bit values
  12  */
  13
  14 struct shmid64_ds {
  15         struct ipc64_perm       shm_perm;       /* operation perms */
  16         size_t                  shm_segsz;      /* size of segment (bytes) */
  17         __kernel_time_t         shm_atime;      /* last attach time */
  18 #ifndef __s390x__
  19         unsigned long           __unused1;
  20 #endif /* ! __s390x__ */
  21         __kernel_time_t         shm_dtime;      /* last detach time */
  22 #ifndef __s390x__
  23         unsigned long           __unused2;
  24 #endif /* ! __s390x__ */
  25         __kernel_time_t         shm_ctime;      /* last change time */
  26 #ifndef __s390x__
  27         unsigned long           __unused3;
  28 #endif /* ! __s390x__ */
  29         __kernel_pid_t          shm_cpid;       /* pid of creator */
  30         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  31         unsigned long           shm_nattch;     /* no. of current attaches */
  32         unsigned long           __unused4;
  33         unsigned long           __unused5;
  34 };
  35
  36 struct shminfo64 {
  37         unsigned long   shmmax;
  38         unsigned long   shmmin;
  39         unsigned long   shmmni;
  40         unsigned long   shmseg;
  41         unsigned long   shmall;
  42         unsigned long   __unused1;
  43         unsigned long   __unused2;
  44         unsigned long   __unused3;
  45         unsigned long   __unused4;
  46 };
  47
  48 #endif /* _S390_SHMBUF_H */