diff options
Diffstat (limited to 'arch/x86/include/asm/msgbuf.h')
| -rw-r--r-- | arch/x86/include/asm/msgbuf.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msgbuf.h b/arch/x86/include/asm/msgbuf.h new file mode 100644 index 00000000000..1b538c907a3 --- /dev/null +++ b/arch/x86/include/asm/msgbuf.h @@ -0,0 +1,39 @@ +#ifndef ASM_X86__MSGBUF_H +#define ASM_X86__MSGBUF_H + +/* + * The msqid64_ds structure for i386 architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space on i386 is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + * + * Pad space on x8664 is left for: + * - 2 miscellaneous 64-bit values + */ +struct msqid64_ds { + struct ipc64_perm msg_perm; + __kernel_time_t msg_stime; /* last msgsnd time */ +#ifdef __i386__ + unsigned long __unused1; +#endif + __kernel_time_t msg_rtime; /* last msgrcv time */ +#ifdef __i386__ + unsigned long __unused2; +#endif + __kernel_time_t msg_ctime; /* last change time */ +#ifdef __i386__ + unsigned long __unused3; +#endif + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ + __kernel_pid_t msg_lspid; /* pid of last msgsnd */ + __kernel_pid_t msg_lrpid; /* last receive pid */ + unsigned long __unused4; + unsigned long __unused5; +}; + +#endif /* ASM_X86__MSGBUF_H */ |