arch/parisc/include/uapi/asm/shmbuf.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _PARISC_SHMBUF_H
   3 #define _PARISC_SHMBUF_H
   4
   5 #include <asm/bitsperlong.h>
   6
   7 /*
   8  * The shmid64_ds structure for parisc 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  * - 64-bit time_t to solve y2038 problem
  14  * - 2 miscellaneous 32-bit values
  15  */
  16
  17 struct shmid64_ds {
  18         struct ipc64_perm       shm_perm;       /* operation perms */
  19 #if __BITS_PER_LONG != 64
  20         unsigned int            __pad1;
  21 #endif
  22         __kernel_time_t         shm_atime;      /* last attach time */
  23 #if __BITS_PER_LONG != 64
  24         unsigned int            __pad2;
  25 #endif
  26         __kernel_time_t         shm_dtime;      /* last detach time */
  27 #if __BITS_PER_LONG != 64
  28         unsigned int            __pad3;
  29 #endif
  30         __kernel_time_t         shm_ctime;      /* last change time */
  31 #if __BITS_PER_LONG != 64
  32         unsigned int            __pad4;
  33 #endif
  34         __kernel_size_t         shm_segsz;      /* size of segment (bytes) */
  35         __kernel_pid_t          shm_cpid;       /* pid of creator */
  36         __kernel_pid_t          shm_lpid;       /* pid of last operator */
  37         unsigned long           shm_nattch;     /* no. of current attaches */
  38         unsigned long           __unused1;
  39         unsigned long           __unused2;
  40 };
  41
  42 struct shminfo64 {
  43         unsigned long   shmmax;
  44         unsigned long   shmmin;
  45         unsigned long   shmmni;
  46         unsigned long   shmseg;
  47         unsigned long   shmall;
  48         unsigned long   __unused1;
  49         unsigned long   __unused2;
  50         unsigned long   __unused3;
  51         unsigned long   __unused4;
  52 };
  53
  54 #endif /* _PARISC_SHMBUF_H */