diff options
Diffstat (limited to 'arch/x86/include/asm/msgbuf.h')
-rw-r--r-- | arch/x86/include/asm/msgbuf.h | 48 |
1 files changed, 1 insertions, 47 deletions
diff --git a/arch/x86/include/asm/msgbuf.h b/arch/x86/include/asm/msgbuf.h index aec850d9159e..809134c644a6 100644 --- a/arch/x86/include/asm/msgbuf.h +++ b/arch/x86/include/asm/msgbuf.h | |||
@@ -1,47 +1 @@ | |||
1 | #ifndef __ASM_GENERIC_MSGBUF_H | #include <asm-generic/msgbuf.h> | |
2 | #define __ASM_GENERIC_MSGBUF_H | ||
3 | |||
4 | #include <asm/bitsperlong.h> | ||
5 | /* | ||
6 | * generic msqid64_ds structure. | ||
7 | * | ||
8 | * Note extra padding because this structure is passed back and forth | ||
9 | * between kernel and user space. | ||
10 | * | ||
11 | * msqid64_ds was originally meant to be architecture specific, but | ||
12 | * everyone just ended up making identical copies without specific | ||
13 | * optimizations, so we may just as well all use the same one. | ||
14 | * | ||
15 | * 64 bit architectures typically define a 64 bit __kernel_time_t, | ||
16 | * so they do not need the first three padding words. | ||
17 | * On big-endian systems, the padding is in the wrong place. | ||
18 | * | ||
19 | * Pad space is left for: | ||
20 | * - 64-bit time_t to solve y2038 problem | ||
21 | * - 2 miscellaneous 32-bit values | ||
22 | */ | ||
23 | |||
24 | struct msqid64_ds { | ||
25 | struct ipc64_perm msg_perm; | ||
26 | __kernel_time_t msg_stime; /* last msgsnd time */ | ||
27 | #if __BITS_PER_LONG != 64 | ||
28 | unsigned long __unused1; | ||
29 | #endif | ||
30 | __kernel_time_t msg_rtime; /* last msgrcv time */ | ||
31 | #if __BITS_PER_LONG != 64 | ||
32 | unsigned long __unused2; | ||
33 | #endif | ||
34 | __kernel_time_t msg_ctime; /* last change time */ | ||
35 | #if __BITS_PER_LONG != 64 | ||
36 | unsigned long __unused3; | ||
37 | #endif | ||
38 | unsigned long msg_cbytes; /* current number of bytes on queue */ | ||
39 | unsigned long msg_qnum; /* number of messages in queue */ | ||
40 | unsigned long msg_qbytes; /* max number of bytes on queue */ | ||
41 | __kernel_pid_t msg_lspid; /* pid of last msgsnd */ | ||
42 | __kernel_pid_t msg_lrpid; /* last receive pid */ | ||
43 | unsigned long __unused4; | ||
44 | unsigned long __unused5; | ||
45 | }; | ||
46 | |||
47 | #endif /* __ASM_GENERIC_MSGBUF_H */ | ||