[SERIAL] Update serial driver documentation
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / asm-x86_64 / sembuf.h
blob63b52925ae2a5855c03d1fc59ac9e2814ea70815
1 #ifndef _X86_64_SEMBUF_H
2 #define _X86_64_SEMBUF_H
4 /*
5 * The semid64_ds structure for x86_64 architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
9 * Pad space is left for:
10 * - 64-bit time_t to solve y2038 problem
11 * - 2 miscellaneous 32-bit values
14 struct semid64_ds {
15 struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
16 __kernel_time_t sem_otime; /* last semop time */
17 unsigned long __unused1;
18 __kernel_time_t sem_ctime; /* last change time */
19 unsigned long __unused2;
20 unsigned long sem_nsems; /* no. of semaphores in array */
21 unsigned long __unused3;
22 unsigned long __unused4;
25 #endif /* _X86_64_SEMBUF_H */