Merge commit '5bc66170dc486556a1e36fd384463536573f4b82' into x86/urgent

From Borislav Petkov <bp@amd64.org>:

Below is a RAS fix which reverts the addition of a sysfs attribute
which we agreed is not needed, post-factum. And this should go in now
because that sysfs attribute is going to end up in 3.7 otherwise and
thus exposed to userspace; removing it then would be a lot harder.

This is done as a merge rather than a simple patch/cherry-pick since
the baseline for this patch was not in the previous x86/urgent.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 1 insertions, 73 deletions

diff --git a/include/linux/msg.h b/include/linux/msg.h
index 56abf1558fd..7a4b9e97d29 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -1,78 +1,8 @@
 #ifndef _LINUX_MSG_H
 #define _LINUX_MSG_H
 
-#include <linux/ipc.h>
-
-/* ipcs ctl commands */
-#define MSG_STAT 11
-#define MSG_INFO 12
-
-/* msgrcv options */
-#define MSG_NOERROR     010000  /* no error if message is too big */
-#define MSG_EXCEPT      020000  /* recv any msg except of specified type.*/
-
-/* Obsolete, used only for backwards compatibility and libc5 compiles */
-struct msqid_ds {
-	struct ipc_perm msg_perm;
-	struct msg *msg_first;		/* first message on queue,unused  */
-	struct msg *msg_last;		/* last message in queue,unused */
-	__kernel_time_t msg_stime;	/* last msgsnd time */
-	__kernel_time_t msg_rtime;	/* last msgrcv time */
-	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned long  msg_lcbytes;	/* Reuse junk fields for 32 bit */
-	unsigned long  msg_lqbytes;	/* ditto */
-	unsigned short msg_cbytes;	/* current number of bytes on queue */
-	unsigned short msg_qnum;	/* number of messages in queue */
-	unsigned short msg_qbytes;	/* max number of bytes on queue */
-	__kernel_ipc_pid_t msg_lspid;	/* pid of last msgsnd */
-	__kernel_ipc_pid_t msg_lrpid;	/* last receive pid */
-};
-
-/* Include the definition of msqid64_ds */
-#include <asm/msgbuf.h>
-
-/* message buffer for msgsnd and msgrcv calls */
-struct msgbuf {
-	long mtype;         /* type of message */
-	char mtext[1];      /* message text */
-};
-
-/* buffer for msgctl calls IPC_INFO, MSG_INFO */
-struct msginfo {
-	int msgpool;
-	int msgmap; 
-	int msgmax; 
-	int msgmnb; 
-	int msgmni; 
-	int msgssz; 
-	int msgtql; 
-	unsigned short  msgseg; 
-};
-
-/*
- * Scaling factor to compute msgmni:
- * the memory dedicated to msg queues (msgmni * msgmnb) should occupy
- * at most 1/MSG_MEM_SCALE of the lowmem (see the formula in ipc/msg.c):
- * up to 8MB       : msgmni = 16 (MSGMNI)
- * 4 GB            : msgmni = 8K
- * more than 16 GB : msgmni = 32K (IPCMNI)
- */
-#define MSG_MEM_SCALE 32
-
-#define MSGMNI    16   /* <= IPCMNI */     /* max # of msg queue identifiers */
-#define MSGMAX  8192   /* <= INT_MAX */   /* max size of message (bytes) */
-#define MSGMNB 16384   /* <= INT_MAX */   /* default max size of a message queue */
-
-/* unused */
-#define MSGPOOL (MSGMNI * MSGMNB / 1024) /* size in kbytes of message pool */
-#define MSGTQL  MSGMNB            /* number of system message headers */
-#define MSGMAP  MSGMNB            /* number of entries in message map */
-#define MSGSSZ  16                /* message segment size */
-#define __MSGSEG ((MSGPOOL * 1024) / MSGSSZ) /* max no. of segments */
-#define MSGSEG (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)
-
-#ifdef __KERNEL__
 #include <linux/list.h>
+#include <uapi/linux/msg.h>
 
 /* one msg_msg structure for each message */
 struct msg_msg {
@@ -107,6 +37,4 @@ extern long do_msgsnd(int msqid, long mtype, void __user *mtext,
 extern long do_msgrcv(int msqid, long *pmtype, void __user *mtext,
 			size_t msgsz, long msgtyp, int msgflg);
 
-#endif /* __KERNEL__ */
-
 #endif /* _LINUX_MSG_H */