Merge tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers

Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells:
 "The patches contained herein do the following:

 (1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI.  I checked
     this with Paul Mackerras before I created the patch and he suggested some
     extra bits to unexport.

 (2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace
     applicable, and remove from the UAPI that part of linux/fs.h that was the
     reason for linux/blk_types.h being exported in the first place.  I
     discussed this with Jens Axboe before creating the patch.

 (3) The big patch of the series to disintegrate include/linux/*.h as a unit.
     This could be split up, though there would be collisions in moving stuff
     between the two Kbuild files when the parts are merged as that file is
     sorted alphabetically rather than being grouped by subsystem.

     Of this set of headers, 17 files have changed in the UAPI exported region
     since the 4th and only 8 since the 9th so there isn't much change in this
     area - as one might expect.

     It should be pretty obvious and straightforward if it does come to fixing
     up: stuff in __KERNEL__ guards stays where it is and stuff outside moves
     to the same file in the include/uapi/linux/ directory.

     If a new file appears then things get a bit more complicated as the
     "headers +=" line has to move to include/uapi/linux/Kbuild.  Only one new
     file has appeared since the 9th and I judge this type of event relatively
     unlikely.

 (4) A patch to disintegrate include/linux/byteorder/*.h as a unit.

  Signed-off-by: David Howells <dhowells@redhat.com>"

* tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/linux/byteorder
  UAPI: (Scripted) Disintegrate include/linux
  UAPI: Unexport linux/blk_types.h
  UAPI: Unexport part of linux/ppp-comp.h

1 files changed, 75 insertions, 0 deletions

diff --git a/include/uapi/linux/msg.h b/include/uapi/linux/msg.h
new file mode 100644
index 000000000000..78dbd2f996a3
--- /dev/null
+++ b/include/uapi/linux/msg.h
@@ -0,0 +1,75 @@
+#ifndef _UAPI_LINUX_MSG_H
+#define _UAPI_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)
+
+
+#endif /* _UAPI_LINUX_MSG_H */