sembuf.h

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#ifndef _ASM_X86_SEMBUF_H
#define _ASM_X86_SEMBUF_H

/*
 * The semid64_ds structure for x86 architecture.
 * Note extra padding because this structure is passed back and forth
 * between kernel and user space.
 *
 * Pad space is left for:
 * - 64-bit time_t to solve y2038 problem
 * - 2 miscellaneous 32-bit values
 */
struct semid64_ds {
    struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
    __kernel_time_t sem_otime;  /* last semop time */
    unsigned long   __unused1;
    __kernel_time_t sem_ctime;  /* last change time */
    unsigned long   __unused2;
    unsigned long   sem_nsems;  /* no. of semaphores in array */
    unsigned long   __unused3;
    unsigned long   __unused4;
};

#endif /* _ASM_X86_SEMBUF_H */