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Commit 34b56df9 authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

msg: Move struct msg_queue into ipc/msg.c 



All of the users are now in ipc/msg.c so make the definition local to
that file to make code maintenance easier.  AKA to prevent rebuilding
the entire kernel when struct msg_queue changes.

Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
parent a2e102cd

include/linux/msg.h

+0 −18
Original line number Diff line number Diff line
@@ -3,7 +3,6 @@ 
#define _LINUX_MSG_H



#include <linux/list.h>

#include <linux/time64.h>

#include <uapi/linux/msg.h>



/* one msg_msg structure for each message */
@@ -16,21 +15,4 @@ struct msg_msg { 
	/* the actual message follows immediately */

};



/* one msq_queue structure for each present queue on the system */

struct msg_queue {

	struct kern_ipc_perm q_perm;

	time64_t q_stime;		/* last msgsnd time */

	time64_t q_rtime;		/* last msgrcv time */

	time64_t q_ctime;		/* last change time */

	unsigned long q_cbytes;		/* current number of bytes on queue */

	unsigned long q_qnum;		/* number of messages in queue */

	unsigned long q_qbytes;		/* max number of bytes on queue */

	pid_t q_lspid;			/* pid of last msgsnd */

	pid_t q_lrpid;			/* last receive pid */



	struct list_head q_messages;

	struct list_head q_receivers;

	struct list_head q_senders;

} __randomize_layout;



#endif /* _LINUX_MSG_H */

ipc/msg.c

+17 −0
Original line number Diff line number Diff line
@@ -43,6 +43,23 @@ 
#include <linux/uaccess.h>

#include "util.h"



/* one msq_queue structure for each present queue on the system */

struct msg_queue {

	struct kern_ipc_perm q_perm;

	time64_t q_stime;		/* last msgsnd time */

	time64_t q_rtime;		/* last msgrcv time */

	time64_t q_ctime;		/* last change time */

	unsigned long q_cbytes;		/* current number of bytes on queue */

	unsigned long q_qnum;		/* number of messages in queue */

	unsigned long q_qbytes;		/* max number of bytes on queue */

	pid_t q_lspid;			/* pid of last msgsnd */

	pid_t q_lrpid;			/* last receive pid */



	struct list_head q_messages;

	struct list_head q_receivers;

	struct list_head q_senders;

} __randomize_layout;



/* one msg_receiver structure for each sleeping receiver */

struct msg_receiver {

	struct list_head	r_list;