1 #ifndef __ASM_GENERIC_IPCBUF_H
2 #define __ASM_GENERIC_IPCBUF_H
5 * The generic ipc64_perm structure:
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
9 * ipc64_perm was originally meant to be architecture specific, but
10 * everyone just ended up making identical copies without specific
11 * optimizations, so we may just as well all use the same one.
13 * Pad space is left for:
14 * - 32-bit mode_t on architectures that only had 16 bit
16 * - 2 miscellaneous 32-bit values
23 __kernel_uid32_t cuid;
24 __kernel_gid32_t cgid;
26 /* pad if mode_t is u16: */
27 unsigned char __pad1[4 - sizeof(__kernel_mode_t)];
29 unsigned short __pad2;
30 unsigned long __unused1;
31 unsigned long __unused2;
34 #endif /* __ASM_GENERIC_IPCBUF_H */