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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-13 13:28:32 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-13 13:28:32 -0700 |
commit | 0b381a286e5d748b1fd80095d3dd52326819742f (patch) | |
tree | d72fca56123520b9c78661137f8a02b6ad26f95b /include/linux/msg.h | |
parent | 034b5eeb6bc783e7f60e11299154556e65699e7a (diff) | |
parent | 5921e6f8809b1616932ca4afd40fe449faa8fd88 (diff) | |
download | linux-rpi3-0b381a286e5d748b1fd80095d3dd52326819742f.tar.gz linux-rpi3-0b381a286e5d748b1fd80095d3dd52326819742f.tar.bz2 linux-rpi3-0b381a286e5d748b1fd80095d3dd52326819742f.zip |
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
Diffstat (limited to 'include/linux/msg.h')
-rw-r--r-- | include/linux/msg.h | 74 |
1 files changed, 1 insertions, 73 deletions
diff --git a/include/linux/msg.h b/include/linux/msg.h index 56abf1558fdd..7a4b9e97d29a 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 */ |