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#ifndef __ASM_GENERIC_SHMBUF_H

#define __ASM_GENERIC_SHMBUF_H

#include <asm/bitsperlong.h>

/*

 * The shmid64_ds structure for x86 architecture.

 * Note extra padding because this structure is passed back and forth

 * between kernel and user space.

 *

 * shmid64_ds was originally meant to be architecture specific, but

 * everyone just ended up making identical copies without specific

 * optimizations, so we may just as well all use the same one.

 *

 * 64 bit architectures typically define a 64 bit __kernel_time_t,

 * so they do not need the first two padding words.

 * On big-endian systems, the padding is in the wrong place.

 *

 *

 * Pad space is left for:

 * - 64-bit time_t to solve y2038 problem

 * - 2 miscellaneous 32-bit values

 */

struct shmid64_ds {

        struct ipc64_perm       shm_perm;       /* operation perms */

        size_t                  shm_segsz;      /* size of segment (bytes) */

        __kernel_time_t         shm_atime;      /* last attach time */

#if __BITS_PER_LONG != 64

        unsigned long           __unused1;

#endif

        __kernel_time_t         shm_dtime;      /* last detach time */

#if __BITS_PER_LONG != 64

        unsigned long           __unused2;

#endif

        __kernel_time_t         shm_ctime;      /* last change time */

#if __BITS_PER_LONG != 64

        unsigned long           __unused3;

#endif

        __kernel_pid_t          shm_cpid;       /* pid of creator */

        __kernel_pid_t          shm_lpid;       /* pid of last operator */

        __kernel_ulong_t        shm_nattch;     /* no. of current attaches */

        __kernel_ulong_t        __unused4;

        __kernel_ulong_t        __unused5;

};

struct shminfo64 {

        __kernel_ulong_t        shmmax;

        __kernel_ulong_t        shmmin;

        __kernel_ulong_t        shmmni;

        __kernel_ulong_t        shmseg;

        __kernel_ulong_t        shmall;

        __kernel_ulong_t        __unused1;

        __kernel_ulong_t        __unused2;

        __kernel_ulong_t        __unused3;

        __kernel_ulong_t        __unused4;

};

#endif /* __ASM_GENERIC_SHMBUF_H */